663 lines
32 KiB
HTML
663 lines
32 KiB
HTML
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="dc.language" scheme="rfc1766" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<meta name="dc.date" scheme="iso8601" content="2005-09-06" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1997, 2006" />
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="owner" content="RCHCLERK@us.ibm.com" />
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<title>H</title>
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<link rel="stylesheet" type="text/css" href="ibmidwb.css" />
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<link rel="stylesheet" type="text/css" href="ic.css" />
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</head>
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<body>
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<a id="Top_Of_Page" name="Top_Of_Page"></a><!-- Java sync-link -->
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<script language = "Javascript" src = "../rzahg/synch.js" type="text/javascript"></script>
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<a name="h"></a>
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<h2 id="h">H</h2>
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<p>Return to <a href="as4glos.htm#as4glos">Glossary</a>.</p>
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<dl>
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<dt id="x2024134" class="bold">
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<a name="x2024134"></a>hacker</dt>
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<dd>An unauthorized person who
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tries to gain access to protected resources on a system.</dd>
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<dt id="x2024139" class="bold">
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<a name="x2024139"></a>HAL</dt>
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<dd>See <a href="rzaath.htm#x2024221">hardware
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abstraction layer</a>.</dd>
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<dt id="x2024143" class="bold">
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<a name="x2024143"></a>half-adjust</dt>
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<dd>A method of rounding
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off a number by adjusting the last significant digit. When the number to the
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right of the last significant digit is 5 or greater, add 1 to the digit. For
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example, 2.475 half-adjusted to two decimal places becomes 2.48, but 2.474
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becomes 2.47.</dd>
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<dt id="x2024148" class="bold">
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<a name="x2024148"></a>half-duplex (HD, HDX)</dt>
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<dd>Describing
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a communications connection over which only one device at a time can transmit
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data. See also <a href="rzaatd.htm#x2021531">duplex</a>.</dd>
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<dt id="x2024153" class="bold">
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<a name="x2024153"></a>half-session</dt>
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<dd>In SNA, one of the locations
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in a logical connection in a network.</dd>
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<dt id="x2024158" class="bold">
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<a name="x2024158"></a>halfword binary</dt>
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<dd>In DB2® UDB for iSeries™, a binary number with a precision of 15 bits.</dd>
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<dt id="x2024163" class="bold">
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<a name="x2024163"></a>halt indicator</dt>
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<dd>In RPG, an indicator
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that stops the program when an unacceptable condition occurs. Valid halt indicators
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are H1 through H9.</dd>
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<dt id="x2002212" class="bold">
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<a name="x2002212"></a>handle</dt>
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<dd>(1) In application programming
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interfaces, a variable that represents an object, an instance of an application
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using some function, or a processing session.</dd>
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<dd>(2) In WebSphere® MQ, the
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identifier or token by which a program accesses an MQM object.</dd>
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<dt id="x2024177" class="bold">
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<a name="x2024177"></a>handle cursor</dt>
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<dd>A pointer that keeps
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track of the current exception handler.</dd>
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<dt id="x2024182" class="bold">
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<a name="x2024182"></a>handler</dt>
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<dd>A function that is registered
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by the application programmer to be called by the system or by the application
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when certain events occur in the system or application.</dd>
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<dt id="x2024197" class="bold">
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<a name="x2024197"></a>Hanja</dt>
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<dd>Korean characters derived from
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Chinese.</dd>
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<dt id="x2024202" class="bold">
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<a name="x2024202"></a>hardcopy</dt>
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<dd>A printed copy of machine
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output in a visually readable form, such as printed reports, documents, and
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summaries. See also <a href="rzaats.htm#x2039291">softcopy</a>.</dd>
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<dt id="x2024207" class="bold">
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<a name="x2024207"></a>hard disk</dt>
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<dd>A nonremovable storage
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medium used for storage of data on a personal computer.</dd>
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<dt id="x2024212" class="bold">
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<a name="x2024212"></a>hard link</dt>
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<dd>(1) A named connection between
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an object and its parent directory. An object may have multiple named connections
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between itself and one or more parent directories.</dd>
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<dd>(2) In a file system,
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an actual path to an existing object. A hard link is established by creating
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a directory entry. A hard link cannot cross file systems.</dd>
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<dt id="x2024221" class="bold">
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<a name="x2024221"></a>hardware abstraction layer (HAL)</dt>
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<dd>In operating systems such as Windows NT®, a layer in which assembly
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language code is isolated. A hardware abstraction layer functions similarly
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to an application programming interface (API) and is used by programmers to
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write device-independent applications.</dd>
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<dt id="x2024226" class="bold">
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<a name="x2024226"></a>hardware cell</dt>
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<dd>In the GDDM® function, the
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default character box associated with a particular display.</dd>
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<dt id="x2024231" class="bold">
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<a name="x2024231"></a>hardware character</dt>
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<dd>In the GDDM function, an
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alphanumeric character provided by the display station, usually from a display
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file.</dd>
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<dt id="x2243806" class="bold">
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<a name="x2243806"></a>hardware service manager</dt>
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<dd>A tool for
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displaying and working with system hardware from both a logical and a packaging
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viewpoint, for debugging input/output processors (IOPs) and devices, and for
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fixing failing and missing hardware.</dd>
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<dt id="x2024240" class="bold">
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<a name="x2024240"></a>hashing</dt>
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<dd>A method by which a large
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number of memory records are stored and can then be efficiently searched.
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This is accomplished through the use of a tailored index that organizes the
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memory records. This arrangement of records is called a hash table.</dd>
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<dt id="x2024245" class="bold">
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<a name="x2024245"></a>hash join</dt>
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<dd>A method for joining two
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or more files together that uses a hash value to find the matching keys.</dd>
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<dt id="x2024250" class="bold">
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<a name="x2024250"></a>hash table</dt>
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<dd>The arrangement of memory
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records.</dd>
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<dt id="x2024255" class="bold">
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<a name="x2024255"></a>hash value</dt>
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<dd>A number that is generated
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from a string of text. The hash value (or simply hash), is substantially smaller
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than the text itself and is generated by a formula in such a way that is extremely
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unlikely that some other text will produce the same hash value. Hashes are
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used in security systems to ensure that transmitted messages have not been
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tampered with and also are used to access data records.</dd>
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<dt id="x2024260" class="bold">
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<a name="x2024260"></a>HCF</dt>
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<dd>See <a href="rzaath.htm#x2024551">Host
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Command Facility</a>.</dd>
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<dt id="x2024264" class="bold">
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<a name="x2024264"></a>HCP</dt>
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<dd>See <a href="rzaath.htm#x2024561">host
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command processor</a>.</dd>
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<dt id="x2192108" class="bold">
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<a name="x2192108"></a>HCP emulation</dt>
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<dd>See <a href="rzaath.htm#x2024556">host command processor emulation</a>.</dd>
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<dt id="x2055991" class="bold">
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<a name="x2055991"></a>HD</dt>
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<dd>See <a href="rzaath.htm#x2024148">half-duplex</a>.</dd>
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<dt id="x2043959" class="bold">
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<a name="x2043959"></a>HDLC</dt>
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<dd>See <a href="rzaath.htm#x2056064">High-level
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Data Link Control</a>.</dd>
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<dt id="x2085039" class="bold">
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<a name="x2085039"></a>HDR</dt>
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<dd>See <a href="rzaath.htm#x2024290">header
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label</a>.</dd>
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<dt id="x2055997" class="bold">
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<a name="x2055997"></a>HDX</dt>
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<dd>See <a href="rzaath.htm#x2024148">half-duplex</a>.</dd>
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<dt id="x2024272" class="bold">
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<a name="x2024272"></a>head</dt>
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<dd>A device that reads, writes,
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or erases data on a storage medium.</dd>
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<dt id="x2024277" class="bold">
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<a name="x2024277"></a>header</dt>
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<dd>(1) In disk management, the 8-byte
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portion of the 520-byte disk sector used by the operating system for control
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and access information.</dd>
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<dd>(2) See <a href="rzaati.htm#x2025101">include statement</a>.</dd>
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<dd>(3) Text that is formatted to be in the top margin of printed
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pages in a document. For example, the header could be the subject of the
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document, the date, the page number, an outline heading, or the document ID.
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See also <a href="rzaatf.htm#x2044144">footer</a>.</dd>
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<dt id="x2056007" class="bold">
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<a name="x2056007"></a>header file</dt>
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<dd>See <a href="rzaati.htm#x2449101">include file</a>.</dd>
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<dt id="x2024285" class="bold">
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<a name="x2024285"></a>header fragment</dt>
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<dd>The first fragment
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in a series of fragments.</dd>
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<dt id="x2024290" class="bold">
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<a name="x2024290"></a>header label (HDR)</dt>
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<dd>A set of information
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on a diskette or tape that describes the contents of the diskette or tape.</dd>
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<dt id="x2024295" class="bold">
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<a name="x2024295"></a>header record</dt>
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<dd>(1) In RPG, output records
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that are printed at the top of a report and include report titles, column
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headings, or any other data needed to identify the information in the report.</dd>
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<dd>(2) A record that contains information, such as customer name and
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customer address, that is common to detail records. See also <a href="rzaatd.htm#x2020281">detail record</a>.</dd>
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<dt id="x2024305" class="bold">
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<a name="x2024305"></a>heap</dt>
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<dd>An object that provides dynamic
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storage for a procedure. The object is part of the activation group and is
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deleted when the activation group is deleted.</dd>
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<dt id="x2024310" class="bold">
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<a name="x2024310"></a>heap identifier</dt>
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<dd>A number that identifies
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a heap within its activation group.</dd>
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<dt id="x2024315" class="bold">
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<a name="x2024315"></a>heartbeat</dt>
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<dd>A signal that one entity
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sends to another to convey that it is still active.</dd>
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<dt id="x2024320" class="bold">
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<a name="x2024320"></a>held state</dt>
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<dd>The state of a connection
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that results in the connection being maintained after the next commit operation.
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This is the initial state of connections. See also <a href="rzaatr.htm#x2036521">released state</a>.</dd>
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<dt id="x2024325" class="bold">
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<a name="x2024325"></a>help level specification</dt>
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<dd>In a display
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file, data description specification coded between the record and field level
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that defines areas on the screen and associates help information with those
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areas.</dd>
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<dt id="x2024330" class="bold">
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<a name="x2024330"></a>help module</dt>
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<dd>In user interface manager,
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the smallest part of a panel group object that can be displayed separately.
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A help module can be used for contextual help, extended help, or a hypertext
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node.</dd>
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<dt id="x2024335" class="bold">
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<a name="x2024335"></a>heterogeneous</dt>
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<dd>A collection of dissimilar
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host computers such as those from different manufacturers. See also <a href="rzaath.htm#x2024506">homogeneous</a>.</dd>
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<dt id="x2024340" class="bold">
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<a name="x2024340"></a>heuristic decision</dt>
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<dd>A decision to
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force a commit or rollback of a logical unit of work in part of a transaction
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program network that is using the two-phase commit protocol, made when a system
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or communications failure prevents normal completion of the logical unit of
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work.</dd>
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<dt id="x2024349" class="bold">
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<a name="x2024349"></a>hexadecimal</dt>
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<dd>Pertaining to a numbering
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system that has a base of 16.</dd>
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<dt id="x2024354" class="bold">
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<a name="x2024354"></a>hexadecimal string</dt>
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<dd>In REXX, any sequence
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of zero or more hexadecimal digits (0-9, a-f, or A-F), optionally separated
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by blanks, delimited by apostrophes or quotation marks, and immediately followed
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by the symbol x or X.</dd>
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<dt id="x2024359" class="bold">
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<a name="x2024359"></a>HFS</dt>
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<dd>See <a href="rzaath.htm#x2024378">hierarchical
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file system</a>.</dd>
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<dt id="x2024363" class="bold">
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<a name="x2024363"></a>hidden address</dt>
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<dd>An address that is
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mapped to another address. The method of mapping that is used does not allow
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external systems to initiate communications with hidden addresses unless port
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numbers are specified.</dd>
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<dt id="x2024368" class="bold">
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<a name="x2024368"></a>hidden field</dt>
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<dd>A field in a display
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file that is passed to and from the program but is not sent to the display.</dd>
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<dt id="x2024373" class="bold">
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<a name="x2024373"></a>hide function</dt>
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<dd>In AFP™ Utilities, a
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function on the screen view used to display elements hidden by other elements
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that were specified after the hidden elements and in the same or approximate
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position as the hidden elements.</dd>
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<dt id="x2024378" class="bold">
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<a name="x2024378"></a>hierarchical file system (HFS)</dt>
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<dd>A
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part of the operating system that includes the application programming interfaces
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and the underlying file system support. HFS enables an application written
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in a high-level language to create, store, retrieve, and manipulate data on
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a storage device. The view of the data to the end user is a hierarchical directory
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structure similar to DOS.</dd>
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<dt id="x2024383" class="bold">
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<a name="x2024383"></a>hierarchical storage management (HSM)</dt>
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<dd>A function that automatically distributes and manages data on disk,
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tape, or both by regarding devices of these types and potentially others as
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levels in a storage hierarchy that range from fast, expensive devices to slower,
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cheaper, and possibly removable devices. The objectives are to minimize access
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time to data and maximize available media capacity. Hierarchical storage
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management is implemented in Tivoli® Storage Manager, in AS/400®, and in z/OS® in the combination of the storage management subsystem (SMS), DFSMShsm™, DFSMSdss™, and DFMSrmm.</dd>
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<dt id="x2024388" class="bold">
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<a name="x2024388"></a>hierarchy</dt>
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<dd>In COBOL, a set of entries
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that includes all subordinate entries to the next equal- or higher-level number.</dd>
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<dt id="x2056064" class="bold">
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<a name="x2056064"></a>High-level Data Link Control (HDLC)</dt>
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<dd>A form of communications line control that uses a specified series of bits
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rather than control characters to control data transmission over a communications
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line.</dd>
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<dt id="x2024403" class="bold">
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<a name="x2024403"></a>high-level language (HLL)</dt>
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<dd>A programming
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language that does not reflect the structure of any particular computer or
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operating system.</dd>
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<dt id="x2024408" class="bold">
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<a name="x2024408"></a>high-level language pointer (HLL pointer)</dt>
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<dd>A source pointer that the programmer declares in the user program.</dd>
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<dt id="x2024413" class="bold">
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<a name="x2024413"></a>highlight</dt>
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<dd>To emphasize a display
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element or segment by changing its visual attributes.</dd>
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<dt id="x2024418" class="bold">
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<a name="x2024418"></a>high-performance file system (HPFS)</dt>
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<dd>In PC operating systems, an installable file system that uses high-speed buffer
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storage, known as a cache, to provide fast access to large disk volumes. The
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file system also supports the coexistence of multiple, active file systems
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on a single personal computer, with the capability of multiple and different
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storage devices.</dd>
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<dt id="x2056087" class="bold">
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<a name="x2056087"></a>High-Performance Routing (HPR)</dt>
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<dd>An
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addition to APPN that enhances data-routing performance and session reliability.</dd>
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<dt id="x2024428" class="bold">
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<a name="x2024428"></a>high-speed line</dt>
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<dd>A communications
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line that transmits at speeds greater than 19,200 bits per second.</dd>
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<dt id="x2024433" class="bold">
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<a name="x2024433"></a>high-speed link (HSL)</dt>
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<dd>A hardware
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connectivity architecture that links system processors to system I/O buses
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and other system units.</dd>
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<dt id="x2210531" class="bold">
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<a name="x2210531"></a>high-speed link loop</dt>
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<dd>The system-to-tower
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connectivity technology that is required to implement switchable independent
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disk pools residing on an expansion unit (tower). The servers and towers in
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a cluster using resilient devices on an external tower must be on an HSL loop
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connecting with HSL cables.</dd>
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<dt id="x2210776" class="bold">
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<a name="x2210776"></a>High Speed Link Ring (HSL Ring)</dt>
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<dd>A logical ring of HSL connections originating from the HSL Controller of a
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processor unit, sequentially connecting I/O or other processor units and ending
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back at the HSL Controller where the ring originated.</dd>
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<dt id="x2056103" class="bold">
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<a name="x2056103"></a>Hiragana</dt>
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<dd>One of the two common Japanese
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phonetic alphabets (the other is katakana). The symbols are cursive or curvilinear
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in style. Hiragana syllables are typically used in the representation of native
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Japanese words and grammatical particles. This set of characters is used
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as word endings for kanji. See also <a href="rzaatk.htm#x2057633">Katakana</a>, <a href="rzaatk.htm#x2057628">Kanji</a>.</dd>
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<dt id="x2024443" class="bold">
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<a name="x2024443"></a>histogram</dt>
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<dd>(1) In Performance Tools, a
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bar graph used in the performance advisor to display the variations over time
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of one type of data in a performance data collection.</dd>
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<dd>(2) In the GDDM function, a chart in which each value of the dependent variable corresponds
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to a range of values of the independent variable (represented by the width
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of the associated bar). For example, such a chart might display the number
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of people in various age ranges.</dd>
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<dt id="x2024451" class="bold">
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<a name="x2024451"></a>history log</dt>
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<dd>A summary of the system
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activities, such as system and job information, device status, system operator
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messages, and a record of program temporary fix (PTF) activity on the system.
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The history log is identified by the name QHST, and the system-recognized
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identifier for the object type is *MSGQ.</dd>
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<dt id="x2024456" class="bold">
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<a name="x2024456"></a>HLL</dt>
|
|
<dd>See <a href="rzaath.htm#x2024403">high-level
|
|
language</a>.</dd>
|
|
<dt id="x2192110" class="bold">
|
|
<a name="x2192110"></a>HLL pointer</dt>
|
|
<dd>See <a href="rzaath.htm#x2024408">high-level language pointer</a>.</dd>
|
|
<dt id="x2024460" class="bold">
|
|
<a name="x2024460"></a>hold delivery</dt>
|
|
<dd>The method of delivering
|
|
messages to a message queue that holds the messages until the user requests
|
|
them. The user is not notified when a message arrives.</dd>
|
|
<dt id="x2024470" class="bold">
|
|
<a name="x2024470"></a>home directory</dt>
|
|
<dd>A directory associated
|
|
with a user that becomes the user's initial current directory when a user
|
|
job is started.</dd>
|
|
<dt id="x2024475" class="bold">
|
|
<a name="x2024475"></a>home location</dt>
|
|
<dd>In Backup Recovery
|
|
and Media Services, the storage location where available media is stored awaiting
|
|
reuse. Typically, this is the on-site tape inventory.</dd>
|
|
<dt id="x2024480" class="bold">
|
|
<a name="x2024480"></a>home menu</dt>
|
|
<dd>The menu that is displayed
|
|
if the user presses the Home key while the cursor is in the home position
|
|
of a menu.</dd>
|
|
<dt id="x2024485" class="bold">
|
|
<a name="x2024485"></a>home page</dt>
|
|
<dd>The initial Web page that
|
|
is returned by a Web site when a user specifies the URL for the Web site.
|
|
Essentially, the home page is the entry point for accessing the contents of
|
|
the Web site.</dd>
|
|
<dt id="x2024490" class="bold">
|
|
<a name="x2024490"></a>home position</dt>
|
|
<dd>(1) The position (farthest
|
|
left) to which the print head moves after the printer is turned on and the
|
|
Stop or Reset button is pressed.</dd>
|
|
<dd>(2) The first item in a list or the
|
|
first line of help information.</dd>
|
|
<dd>(3) In iSeries Access, the first position of the first
|
|
input field on the display.</dd>
|
|
<dt id="x2024501" class="bold">
|
|
<a name="x2024501"></a>home system</dt>
|
|
<dd>The first system in a
|
|
chain of systems that are linked by any combination of TELNET and pass-through
|
|
requests.</dd>
|
|
<dt id="x2024506" class="bold">
|
|
<a name="x2024506"></a>homogeneous</dt>
|
|
<dd>A collection of similar
|
|
host computers such as those of one model of one manufacturer. See also <a href="rzaath.htm#x2024335">heterogeneous</a>.</dd>
|
|
<dt id="x2024511" class="bold">
|
|
<a name="x2024511"></a>hook</dt>
|
|
<dd>The location in a compiled program
|
|
where the compiler inserts an instruction that allows the user to later interrupt
|
|
the program (by setting breakpoints) for debugging purposes.</dd>
|
|
<dt id="x2002238" class="bold">
|
|
<a name="x2002238"></a>hop</dt>
|
|
<dd>(1) An intermediate connection in
|
|
a string of connections that links two network devices.</dd>
|
|
<dd>(2) The transmission
|
|
from one location to the next in a network.</dd>
|
|
<dt id="x2024522" class="bold">
|
|
<a name="x2024522"></a>hops</dt>
|
|
<dd>The number of systems that a
|
|
distribution passes through to its destination.</dd>
|
|
<dt id="x2024527" class="bold">
|
|
<a name="x2024527"></a>horizontally displayed records</dt>
|
|
<dd>Subfile
|
|
records that are grouped so that each line on the display shows more than
|
|
one record of the same record format.</dd>
|
|
<dt id="x2002243" class="bold">
|
|
<a name="x2002243"></a>host</dt>
|
|
<dd>(1) A computer that is connected
|
|
to a network and provides an access point to that network. The host can be
|
|
a client, a server, or both a client and server simultaneously. See also <a href="rzaats.htm#x2004518">server</a>, <a href="rzaatc.htm#x2000644">client</a>.</dd>
|
|
<dd>(2) In a cooperative processing environment, the system running the server program
|
|
with which the CoOperative Development Environment/400 session communicates.</dd>
|
|
<dd>(3) The controlling or highest-level system in a data communications
|
|
configuration. A server is the host system for the workstations connected
|
|
to it.</dd>
|
|
<dd>(4) In TCP/IP, any system that has at least one Internet address
|
|
associated with it. A host with multiple network interfaces can have multiple
|
|
internet addresses associated with it. The host can be a client, a server,
|
|
or both.</dd>
|
|
<dt id="x2024541" class="bold">
|
|
<a name="x2024541"></a>host-centric application</dt>
|
|
<dd>In VisualAge® RPG, an
|
|
application in which the user's program logic is stored and run on the host.</dd>
|
|
<dt id="x2024546" class="bold">
|
|
<a name="x2024546"></a>host command</dt>
|
|
<dd>In CoOperative Development
|
|
Environment/400, a command processed on a host system. It can be sent from
|
|
the host emulation window or from the AD/Cycle® CoOperative Development Environment
|
|
session.</dd>
|
|
<dt id="x2024551" class="bold">
|
|
<a name="x2024551"></a>Host Command Facility (HCF)</dt>
|
|
<dd>A feature
|
|
available on a System/370™, 43xx, or 30xx host system that enables a user
|
|
on the host system to use applications on an iSeries system or other systems as if they
|
|
were using remotely attached 5250-type display stations.</dd>
|
|
<dt id="x2024561" class="bold">
|
|
<a name="x2024561"></a>host command processor (HCP)</dt>
|
|
<dd>The
|
|
SNA logical unit of the programmable store system store controller.</dd>
|
|
<dt id="x2024556" class="bold">
|
|
<a name="x2024556"></a>host command processor emulation (HCP emulation)</dt>
|
|
<dd>A function of the Point-of-Sale Utility licensed program that
|
|
allows the iSeries system to appear to the host command processor (HCP) in a point-of-sale
|
|
system as if the iSeries system were the System/370 host system.</dd>
|
|
<dt id="x2239510" class="bold">
|
|
<a name="x2239510"></a>hosted partition</dt>
|
|
<dd>A logical partition
|
|
that is dependent on another logical partition for I/O resources. The I/O
|
|
resources that a hosted partition can share include disk, CD, and tape devices.</dd>
|
|
<dt id="x2024566" class="bold">
|
|
<a name="x2024566"></a>host ID</dt>
|
|
<dd>(1) See <a href="rzaatn.htm#x2003233">network address</a>.</dd>
|
|
<dd>(2) In TCP/IP, that part of the internet address
|
|
that defines the host on the network. The length of the host ID depends on
|
|
the type of network class (A, B, or C).</dd>
|
|
<dt id="x2210771" class="bold">
|
|
<a name="x2210771"></a>hosting partition</dt>
|
|
<dd>Either the primary
|
|
or a secondary partition that is not a guest partition. The hosting partition
|
|
has the real I/O devices that the virtual I/O device drivers in a guest partition
|
|
connect to. The hosting partition also supplies the guest partition's DST
|
|
console session, via a TELNET connection into the hosting partition. The guest
|
|
partition's console is not part of the hosting partition's console. The host
|
|
partition's console, the guest partition's console session and the guest partition's
|
|
operating system's console are all different console sessions.</dd>
|
|
<dt id="x2002261" class="bold">
|
|
<a name="x2002261"></a>host language</dt>
|
|
<dd>Any programming language
|
|
in which SQL statements can be embedded.</dd>
|
|
<dt id="x2024577" class="bold">
|
|
<a name="x2024577"></a>host master key</dt>
|
|
<dd>In Cryptographic
|
|
Support, a type of key-encrypting key used to encrypt data-encrypting keys
|
|
and whose variants are used to encrypt all other key-encrypting keys stored
|
|
on the system.</dd>
|
|
<dt id="x2024582" class="bold">
|
|
<a name="x2024582"></a>host master-key variant</dt>
|
|
<dd>In Cryptographic
|
|
Support, a key-encrypting key derived from the host master key that is used
|
|
to encrypt a certain type of cross-domain key.</dd>
|
|
<dt id="x2024587" class="bold">
|
|
<a name="x2024587"></a>host-mixed encoding scheme</dt>
|
|
<dd>An encoding
|
|
scheme that contains a mixture of single-byte EBCDIC code pages and double-byte
|
|
host code pages. A 5026 encoding scheme, for example, is CP290 (single byte)
|
|
and CP300 (double byte).</dd>
|
|
<dt id="x2024592" class="bold">
|
|
<a name="x2024592"></a>host name</dt>
|
|
<dd>In Internet communications,
|
|
the name given to a computer. Sometimes, host name is used to mean the fully
|
|
qualified domain name; other times, it is used to mean the most specific subname
|
|
of a fully qualified domain name. For example, if mycomputer.city.company.com
|
|
is the fully qualified domain name, either of the following may be considered
|
|
the host name: mycomputer.city.company.com, mycomputer.</dd>
|
|
<dt id="x2024597" class="bold">
|
|
<a name="x2024597"></a>host print transform (HPT)</dt>
|
|
<dd>An i5/OS™ print function that converts an SNA character string (SCS) data stream
|
|
into an ASCII data stream. The ASCII data stream is then formatted and sent
|
|
to an ASCII printer through one or more hardware connections, such as iSeries Access, 3477, or 3487 workstations. This single location of the transform
|
|
allows for consistent ASCII printing through any of the hardware connections.</dd>
|
|
<dt id="x2002271" class="bold">
|
|
<a name="x2002271"></a>host program</dt>
|
|
<dd>A program written in
|
|
a host language that contains embedded SQL statements.</dd>
|
|
<dt id="x2002276" class="bold">
|
|
<a name="x2002276"></a>host structure</dt>
|
|
<dd>In an application
|
|
program, a structure referred to by embedded SQL statements.</dd>
|
|
<dt id="x2024613" class="bold">
|
|
<a name="x2024613"></a>host table</dt>
|
|
<dd>A list of host names and
|
|
associated Internet Protocol (IP) addresses for an Internet Protocol (IP)
|
|
network.</dd>
|
|
<dt id="x2002281" class="bold">
|
|
<a name="x2002281"></a>host variable</dt>
|
|
<dd>In an application host
|
|
program, a variable that is referred to by embedded SQL statements. Host variables
|
|
are programming variables in the application program and are the primary mechanism
|
|
for transmitting data between tables in the database and application program
|
|
work areas.</dd>
|
|
<dt id="x2024621" class="bold">
|
|
<a name="x2024621"></a>hot backup</dt>
|
|
<dd>In a remote journal network,
|
|
pertaining to the function of replicating an application's dependent data
|
|
from one primary iSeries server to a backup iSeries server. If the primary system fails,
|
|
you can perform processing on the backup system.</dd>
|
|
<dt id="x2024626" class="bold">
|
|
<a name="x2024626"></a>hot key</dt>
|
|
<dd>(1) To jump from a host session
|
|
to an application on a workstation, or from the workstation to the host session.</dd>
|
|
<dd>(2) A key sequence used to shift operations between different applications
|
|
or between different functions of an application.</dd>
|
|
<dt id="x2024635" class="bold">
|
|
<a name="x2024635"></a>hotlink</dt>
|
|
<dd>(1) A function of RUMBA/400 that
|
|
uses dynamic data exchange to copy information from an i5/OS database file
|
|
to personal computer applications.</dd>
|
|
<dd>(2) In VisualAge RPG, a
|
|
function used to copy information to and from Microsoft® Windows® programs.</dd>
|
|
<dt id="x2141615" class="bold">
|
|
<a name="x2141615"></a>hot spot</dt>
|
|
<dd>An area of the display that,
|
|
when clicked on, calls a macroinstruction.</dd>
|
|
<dt id="x2024648" class="bold">
|
|
<a name="x2024648"></a>HPFS</dt>
|
|
<dd>See <a href="rzaath.htm#x2024418">high-performance
|
|
file system</a>.</dd>
|
|
<dt id="x2171410" class="bold">
|
|
<a name="x2171410"></a>HPR</dt>
|
|
<dd>See <a href="rzaath.htm#x2056087">High-Performance
|
|
Routing</a>.</dd>
|
|
<dt id="x2301233" class="bold">
|
|
<a name="x2301233"></a>HPT</dt>
|
|
<dd>See <a href="rzaath.htm#x2024597">host
|
|
print transform</a>.</dd>
|
|
<dt id="x2024656" class="bold">
|
|
<a name="x2024656"></a>HRI</dt>
|
|
<dd>See <a href="rzaath.htm#x2024693">human
|
|
readable interpretation</a>.</dd>
|
|
<dt id="x2024660" class="bold">
|
|
<a name="x2024660"></a>HSL</dt>
|
|
<dd>See <a href="rzaath.htm#x2024433">high-speed
|
|
link</a>.</dd>
|
|
<dt id="x2210778" class="bold">
|
|
<a name="x2210778"></a>HSL Ring</dt>
|
|
<dd>See <a href="rzaath.htm#x2210776">High Speed Link Ring</a>.</dd>
|
|
<dt id="x2009137" class="bold">
|
|
<a name="x2009137"></a>HSM</dt>
|
|
<dd>See <a href="rzaath.htm#x2024383">hierarchical
|
|
storage management</a>.</dd>
|
|
<dt id="x2024666" class="bold">
|
|
<a name="x2024666"></a>HTML</dt>
|
|
<dd>See <a href="rzaath.htm#x2056264">Hypertext
|
|
Markup Language</a>.</dd>
|
|
<dt id="x2024670" class="bold">
|
|
<a name="x2024670"></a>HTTP</dt>
|
|
<dd>See <a href="rzaath.htm#x2024721">Hypertext
|
|
Transfer Protocol</a>.</dd>
|
|
<dt id="x2024674" class="bold">
|
|
<a name="x2024674"></a>HTTP method</dt>
|
|
<dd>An action that is used
|
|
by the Hypertext Transfer Protocol. HTTP methods include GET, POST, and PUT.</dd>
|
|
<dt id="x2193603" class="bold">
|
|
<a name="x2193603"></a>HTTPS</dt>
|
|
<dd>See <a href="rzaath.htm#x2237225">Hypertext Transfer Protocol Secure</a>.</dd>
|
|
<dt id="x2024683" class="bold">
|
|
<a name="x2024683"></a>HTTP Server for iSeries</dt>
|
|
<dd>A licensed program that
|
|
enables a computer that uses the Hypertext Transfer Protocol (HTTP) to serve
|
|
objects by responding to requests from other programs, such as browsers. The IBM® HTTP
|
|
Server for iSeries, which supports the Secure Sockets Layer (SSL) protocol, provides
|
|
secure communications between a server and an SSL-capable browser.</dd>
|
|
<dt id="x2024688" class="bold">
|
|
<a name="x2024688"></a>hue</dt>
|
|
<dd>The gradual variations of colors
|
|
such as blue, green, red, yellow, and so on.</dd>
|
|
<dt id="x2024693" class="bold">
|
|
<a name="x2024693"></a>human readable interpretation (HRI)</dt>
|
|
<dd>In AFP Utilities, the characters printed above or below a bar code. These
|
|
characters are read by people, not by scanners.</dd>
|
|
<dt id="x2024698" class="bold">
|
|
<a name="x2024698"></a>hypertext</dt>
|
|
<dd>A way of presenting information
|
|
online with connections (called hypertext links) between one piece of information
|
|
(called hypertext nodes) and another.</dd>
|
|
<dt id="x2024706" class="bold">
|
|
<a name="x2024706"></a>hypertext link</dt>
|
|
<dd>The connection between
|
|
one hypertext node and another.</dd>
|
|
<dt id="x2056264" class="bold">
|
|
<a name="x2056264"></a>Hypertext Markup Language (HTML)</dt>
|
|
<dd>A markup language that conforms to the SGML standard and was designed primarily
|
|
to support the online display of textual and graphical information that includes
|
|
hypertext links.</dd>
|
|
<dt id="x2024716" class="bold">
|
|
<a name="x2024716"></a>hypertext node</dt>
|
|
<dd>In a hypertext environment,
|
|
a complete module of information that is linked to other relevant modules
|
|
by hypertext links.</dd>
|
|
<dt id="x2024721" class="bold">
|
|
<a name="x2024721"></a>Hypertext Transfer Protocol (HTTP)</dt>
|
|
<dd>An Internet protocol that is used to transfer and display hypertext and XML
|
|
documents on the Web.</dd>
|
|
<dt id="x2237225" class="bold">
|
|
<a name="x2237225"></a>Hypertext Transfer Protocol Secure (HTTPS)</dt>
|
|
<dd>An Internet protocol that is used by Web servers and Web browsers to
|
|
transfer and display hypermedia documents securely across the Internet.</dd>
|
|
<dt id="x2024731" class="bold">
|
|
<a name="x2024731"></a>hypervisor</dt>
|
|
<dd>A specialized portion
|
|
of Licensed Internal Code that enables logical partitioning.</dd></dl>
|
|
<a id="Bot_Of_Page" name="Bot_Of_Page"></a>
|
|
</body>
|
|
</html>
|