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IBM PCjr

The IBM PCjr (pronounced "PC junior") is a home computer produced and marketed by IBM from March 1984 to May 1985. It was intended as a lower-cost variant of the IBM PC, with hardware capabilities better suited for video games, in order to compete more directly with other home computers such as the Apple II and Commodore 64.

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Key facts & relationships

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CPU
Intel 8088 @ 4.77 MHz
Discontinued
March 1985
Display
12" TTL RGBI monitor, composite video out (TV); 160 × 200 and 320 × 200 at 16 colors, 640 × 200 at 4 colors
Graphics
Motorola 6845 CRTC, IBM custom Video Gate Array
Introductory price
US$1,269 (equivalent to $3,930 in 2025) with 128 KB memory and without monitor. · £800 (equivalent to £2,610 in 2025) w/o disk drive. · CA$1,900
Manufacturer
Teledyne, Lewisburg, Tennessee

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Overview

Models

Hardware

Software

History

Legacy

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Map overview Semantic statistics

IBM PCjr

Nodes87
Edges86
Triples37
Avg. degree1.98
Density0.022989
Components1

How this topic connects Entity context

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IBM PCjr

Top relations

related to External links · 4
IBM PCjr → Christmas, PCjr BattleThe IBM PCjr, The Great Apple, User's Guide
Introductory price · 3
IBM PCjr → CA$1,900, US$1,269 (equivalent to $3,930 in 2025) with 128 KB memory and without monitor., £800 (equivalent to £2,610 in 2025) w/o disk drive.
CPU · 1
IBM PCjr → Intel 8088 @ 4.77 MHz
Discontinued · 1
IBM PCjr → March 1985
Display · 1
IBM PCjr → 12" TTL RGBI monitor, composite video out (TV); 160 × 200 and 320 × 200 at 16 colors, 640 × 200 at 4 colors
Graphics · 1
IBM PCjr → Motorola 6845 CRTC, IBM custom Video Gate Array
Manufacturer · 1
IBM PCjr → Teledyne, Lewisburg, Tennessee
Memory · 1
IBM PCjr → 64 KB base
Operating system · 1
IBM PCjr → IBM PC DOS 2.10
Predecessor · 1
IBM PCjr → IBM Personal Computer

Important terminology Word statistics

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Important terminology

pcjr ibm pc software computer video kb keyboard home cga memory system 1984 new market also would expansion pcjr's apple

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
IBM PCjrCPUIntel 8088 @ 4.77 MHz1.00infobox
IBM PCjrDiscontinuedMarch 19851.00infobox
IBM PCjrDisplay12" TTL RGBI monitor, composite video out (TV); 160 × 200 and 320 × 200 at 16 colors, 640 × 200 at 4 colors1.00infobox
IBM PCjrGraphicsMotorola 6845 CRTC, IBM custom Video Gate Array1.00infobox
IBM PCjrIntroductory priceUS$1,269 (equivalent to $3,930 in 2025) with 128 KB memory and without monitor.1.00infobox
IBM PCjrIntroductory price£800 (equivalent to £2,610 in 2025) w/o disk drive.1.00infobox
IBM PCjrIntroductory priceCA$1,9001.00infobox
IBM PCjrManufacturerTeledyne, Lewisburg, Tennessee1.00infobox
IBM PCjrMemory64 KB base1.00infobox
IBM PCjrOperating systemIBM PC DOS 2.101.00infobox
IBM PCjrPredecessorIBM Personal Computer1.00infobox
IBM PCjrReleasedMarch 1984; 42 years ago (1984-03)1.00infobox
IBM PCjrRemovable storageCartridges, floppy disks1.00infobox
IBM PCjrSoundTexas Instruments SN76489, PC speaker1.00infobox
IBM PCjrSuccessorIBM PS/11.00infobox
IBM PCjrTypePersonal computer1.00infobox
IBM PCjrUnits shipped500,0001.00infobox

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