IBM 2922

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The IBM 2922 Programmable Terminal was a Remote Job Entry (RJE) terminal introduced by IBM in 1972.[1] The 2922 communicated using Binary Synchronous Communications (Bisync).

The 2922 and associated peripherals were RPQs, that is special-order equipment not on the standard price list. The system was a repackaging of an IBM System/360 Model 20 and peripherals for use as a dedicated terminal.

Standard components[edit]

The 2922-1 Terminal Control Unit (RPQ 810563) employed the same instruction set architecture as the Model 20. It incorporated 8 Kb of 3.6 μs magnetic-core memory. The control unit also containd the Binary Synchronous Communications Adapter (BSCA) integrated into the Terminal Control Unit that supported a single line at speeds up to 7200 bits per second (bps).[2]

The 2922-2 Terminal Printer (RPQ 810564) was a repackaged 1403 printer. The printer used a print chain and provided a page width of 132 characters using fanfold paper. The controls and indicators for the printer were located on the front panel of the Terminal Control Unit, except for a duplicate start key on the rear of the printer.

The 2922-3 Terminal Card Reader (RPQ 810565) was a repackaged 2501, an optical punched card reader for 80-column cards with a rated speed of 500 cards per minute. The controls and indicators for the card reader were located on the front panel of the Terminal Control Unit.

Optional components[edit]

One IBM 2152 printer/keyboard could be attached to an adapter in the Terminal Control Unit. This device had a selectric print mechanism and resembled the 1052 printer/keyboard used as a console on many System/360 computers. It operated at 15.5 characters per second (CPS).

One IBM 1442 Model 5 card punch could be attached to an adapter in the Terminal Control Unit. The 1442 could punch 80-column cards at a rate of 91 cards per minute (cpm) if all 80 columns were punched.

Software[edit]

The 2922 had no disk, however magnetic core had the property of retaining programs loaded from cards thru power on-off cycles.

IBM supplied a remote job entry program for the 2922 as Type 2 Field Developed Program (FDP).[3]

DOS/VS POWER Workstation Support for the IBM 2922 (FDP 5198-BBY) handled communication with a DOS/VS system using POWER software for remote job entry.

Users[edit]

In 1974 Computerworld reported that the State of Mississippi was using six 2922 terminals to communicate with a central System/370 Model 145.[4]

References[edit]

  1. ^ IBM Corporation. "DPD Chronology 1972". IBM Archives. Retrieved February 12, 2013. 
  2. ^ IBM Corporation (1972). IBM 2922 Programmable Terminal RPQ 810563, 810564, 810565 Component Description. 
  3. ^ IBM Corporation (1974). IBM System/360 and System/370 Bibliography. 
  4. ^ "Centralization Saves $500,000 Annually for Miss.". Computerworld. July 17, 1974. Retrieved February 12, 2013.