IBM PCjr
E744670
The IBM PCjr is a home-oriented personal computer released by IBM in 1984 as a lower-cost, consumer-focused counterpart to the IBM PC, notable for its enhanced graphics and sound but ultimately poor market reception.
Statements (59)
| Predicate | Object |
|---|---|
| instanceOf | home computer ⓘ |
| architecture | x86 NERFINISHED ⓘ |
| busCompatibility | limited compatibility with standard IBM PC expansion cards ⓘ |
| commercialPerformance | poor sales ⓘ |
| comparedTo |
Apple IIe
NERFINISHED
ⓘ
Atari 800XL NERFINISHED ⓘ Commodore 64 NERFINISHED ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| cpu | Intel 8088 NERFINISHED ⓘ |
| cpuClockSpeed | 4.77 MHz ⓘ |
| developer | IBM ⓘ |
| discontinued | 1985-03 ⓘ |
| expansionSystem | sidecar expansion modules ⓘ |
| family | IBM PC compatible NERFINISHED ⓘ |
| formFactor | desktop ⓘ |
| graphicsChip | Enhanced CGA-compatible adapter ⓘ |
| graphicsModes |
160×200 with 16 colors
ⓘ
320×200 with 16 colors ⓘ 640×200 with 4 colors ⓘ |
| hasFeature |
built-in joystick ports
ⓘ
cassette port ⓘ dual ROM cartridge slots on front panel ⓘ |
| initialRam |
128 KB
ⓘ
64 KB ⓘ |
| inputDevice |
wired replacement keyboard (later)
ⓘ
wireless infrared keyboard ⓘ |
| introduced | 1983-11 ⓘ |
| keyboardNickname | chiclet keyboard ⓘ |
| legacy |
example of an unsuccessful IBM PC derivative
ⓘ
influenced later PC multimedia capabilities ⓘ |
| manufacturer | IBM NERFINISHED ⓘ |
| marketedAs |
home-oriented personal computer
ⓘ
lower-cost alternative to IBM PC ⓘ |
| maxRam | 640 KB ⓘ |
| notableFor |
ROM cartridge slots
ⓘ
enhanced graphics compared to IBM PC ⓘ enhanced sound compared to IBM PC ⓘ infrared wireless keyboard ⓘ |
| operatingSystem |
Cartridge BASIC
NERFINISHED
ⓘ
PC DOS NERFINISHED ⓘ |
| pcCompatibility | partially IBM PC compatible ⓘ |
| predecessor | IBM Personal Computer NERFINISHED ⓘ |
| priceAtLaunch | approximately US$669 base configuration ⓘ |
| reasonForFailure |
high price relative to competitors
ⓘ
incompatible with some IBM PC software ⓘ limited expandability ⓘ widely criticized keyboard ⓘ |
| reception | negative market reception ⓘ |
| releaseDate | 1984-01 ⓘ |
| soundCapabilities |
3-voice square-wave sound
ⓘ
noise channel ⓘ |
| soundChip | TI SN76496-compatible sound generator ⓘ |
| storage | 5.25-inch floppy disk drive ⓘ |
| storageOptions |
cassette interface (early models)
ⓘ
external floppy disk drive ⓘ |
| successor | IBM PC Convertible (in home/portable segment) NERFINISHED ⓘ |
| targetMarket |
consumer market
ⓘ
home users ⓘ |
| wordSize | 16-bit internal, 8-bit external bus ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.