This is a brief glossary of some of the terms to be found on these web pages.
It is not intended to be a dictionary of computing;
quite a lot of the terms are rather historically-based IBM ones,
or acronyms in common use in the OS/2 community.
If you think of a term that might usefully be added, please email it to
- An Aurora Convenience Pack, one of the Convenience Packs
for Warp Server for e-Business, which had the internal code name Aurora.
- The first release of ACP, which was issued around the end of 2000.
- The second release of ACP, which was issued around the end of 2001.
- The IBM internal code name for Warp Server for e-Business.
- The IBM internal code name for OS/2 2.1.
- Convenience Pack
- A consolidated collection of a base system and all current FixPaks,
delivered as an immediately installable system.
Convenience Packs are available via IBM Software Choice,
or as part of eComStation.
There are two kinds of Convenience Packs;
ACP and MCP.
- Corrective Service Diskette(s)
- The distribution medium (historically anyway) for FixPaks.
Now used as an alternative term for a FixPak.
- Corrective Service Facility
- An IBM tool (set of programs and other files) that is used to apply corrective service
(FixPaks) to an OS/2 system component.
- An abbreviation for Convenience Pack.
- The IBM internal code name for OS/2 2.0.
- An abbreviation for Corrective Service Diskette(s).
- An abbreviation for Corrective Service Facility.
- Direct Access Storage Device. A long established IBM term,
which currently means a disk device;
historically there were other kinds of direct access storage (e.g. magnetic cards)
which may explain the rather generic terminology.
- A third party OEM version of OS/2.
It is based on the Merlin Convenience Packs,
but with the option of SMP support.
- An abbreviation for eComStation.
- The IBM internal code name for OS/2 2.1 for Windows
(the version that used an existing copy of Windows rather than integrated code).
- A controlled release of fixes and updates to an OS/2 component.
FixPaks are usually cumulative;
that is, only the latest version need be applied.
FixPaks are applied using the Corrective Service Facility.
- An informal name for the Corrective Service Facility.
- An abbreviation for General Availability.
- General Availability
- An IBM term signifying the first general release of a product or product version.
This differentiates it from earlier alpha or beta versions,
and also from versions which have had FixPaks applied.
- Initial Program Load. A long established IBM term,
first used on their mainframes.
It refers to the process of loading the first program into the system when starting it up,
and hence is actually what is more commonly referred to as the bootstrap process.
- Master Boot Record
- The contents of the first physical sector on a hard drive.
This consists of the partition table, and the initial boot code which selects the active partition
and boots it.
- An abbreviation for Master Boot Record.
- A Merlin Convenience Pack, one of the Convenience Packs for OS/2 Warp 4,
which had the internal code name Merlin.
- The first release of MCP, which was issued around the end of 2000.
- The second release of MCP, which was issued around the end of 2001.
- The IBM internal code name for OS/2 Warp 4.
- An abbreviation for National Language Version.
OS/2 is translated into many languages, and these are known as National Language Versions.
In fact, IBM tend to treat this term as if it said 'non US version';
products are viewed as a US English version,
and also National Language Versions.
- An abbreviation for Symmetric MultiProcessing.
A system that uses two or more processors is said to be a multiprocessing system.
A multiprocessing system where both processors have more or less equal status
(in particular, both can execute most kernel mode code) is a symmetric multiprocessing system.
Some versions of OS/2 support SMP;
notably a special version of OS/2 2.1, Warp Server 3, Warp Server 4, Warp Server for e-Business,
and (as an option) eComStation.
- An abbreviation for uniprocessor;
in other words, a single processor system.
- The IBM internal code name for OS/2 3.0.
This was then adopted as the marketing name for OS/2 in that and subsequent versions.
- An abbreviation for Warp Server for e-Business.
- An abbreviation for WorkSpace On Demand;
an OS/2 product for use on diskless workstations.
IBM employees have been known to invent new acronyms in the corporate tradition.
A few may be found here.
- Land Sea Interface. The beach.
- Large Storage Unit. A cupboard.
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Last Updated: 8th August 2015
© 2015 by Bob Eager, Tavi Systems