Get started

Get started

Bring yourself up to speed with our introductory content.

• HP-UX

  HP-UX is the UNIX-based operating system for the HP 9000 series of business servers from Hewlett-Packard. Continue Reading

• workload

  In computing, the workload is the amount of processing that the computer has been given to do at a given time. Continue Reading

• Linpack benchmark

  The Linpack benchmark is a method of measuring the floating point rate of execution of a computer by running a program that solves a system of linear equations. Continue Reading

• Logwatch

  Logwatch is a log analysis program that parses through system logs and generates periodic reports based on criteria specified by the user. These reports are generated immediately after Logwatch has run (normally every night), and can be transmitted ... Continue Reading

• limited combustible cable (LCC)

  Limited combustible cable (LCC), also called CMP-50 cable, is fire-resistant cable with insulation made of a synthetic material called fluorinated ethylene propylene (FEP). Continue Reading

• Definitions to Get Started

  • data center
  • parallel processing
  • blade server
  • shell script

  • ambient temperature
  • OLTP (online transaction processing)
  • statistical mean, median, mode and range
  • free cooling

  View All Definitions

• High Level Assembler (HLASM)

  High Level Assembler (HLASM) is IBM's assembler programming language and the assembler itself for the IBM z/OS, z/VM, OS/390, MVS, VM, and VSE operating systems. Released in June 1992, HLASM was the first new assembler language from IBM in twenty ...Continue Reading

• ACF2 or CA-ACF2 (Access Control Facility)

  ACF2 (more formally, CA-ACF2; the ACF stands for Access Control Facility) is a set of programs from Computer Associates that enable security on mainframes.Continue Reading

• batch

  In a computer, a batch job is a program that is assigned to the computer to run without further user interaction.Continue Reading

• assembler

  An assembler is a program that takes basic computer instructions and converts them into a pattern of bits that the computer's processor can use to perform its basic operations.Continue Reading

• Teraplex (Teraplex Integration Center)

  Teraplex (short for Teraplex Integration Center) is the name IBM has given to its 'real life' testing centers whose purpose is to allow IBM customers and business partners to test very large database (VLDB) applications on a full-scale basis by ...Continue Reading

• Job Entry Subsystem (JES)

  Job Entry Subsystem (JES) is a subsystem of the OS/390 and MVS mainframe operating systems that manages 'jobs' (units of work) that the system does. Each job is described to the operating job control language (JCL).Continue Reading

• Resource Access Control Facility (RACF)

  RACF (Resource Access Control Facility) is the IBM security management product for its mainframe (large server) operating system, OS/390 (MVS) as well as for its VM operating system.Continue Reading

• SuperZap

  SuperZap is an IBM utility program used to install zaps or fixes to MVS operating systems or application program code that is causing a problem.Continue Reading

• Rexx

  Rexx is an interpreted script language developed by IBM originally for use by personal users of large operating systems.Continue Reading

• MVS (Multiple Virtual Storage)

  MVS (Multiple Virtual Storage) is IBM's best-known operating system for mainframe and large server computers.Continue Reading