ZX81
E533739
The ZX81 is a low-cost home computer developed by Sinclair Research in the early 1980s, notable for popularizing personal computing in the UK before the rise of more advanced systems.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Sinclair ZX81 | 1 |
Statements (56)
| Predicate | Object |
|---|---|
| instanceOf |
8-bit computer
ⓘ
Sinclair computer ⓘ home computer ⓘ |
| architecture | 8-bit ⓘ |
| bus | edge connector expansion bus ⓘ |
| commercialStatus | discontinued ⓘ |
| companyFounder | Clive Sinclair NERFINISHED ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| cpu |
NEC D780C
NERFINISHED
ⓘ
Zilog Z80 NERFINISHED ⓘ |
| cpuClockSpeed | 3.25 MHz ⓘ |
| designer | Rick Dickinson NERFINISHED ⓘ |
| developer | Sinclair Research NERFINISHED ⓘ |
| displayDevice | television ⓘ |
| displayOutput | RF modulator ⓘ |
| exportVariant |
Timex Sinclair 1000
NERFINISHED
ⓘ
Timex Sinclair 1500 NERFINISHED ⓘ |
| formFactor | compact wedge-shaped case ⓘ |
| graphicsMode |
semigraphics
ⓘ
text mode ⓘ |
| influenced |
ZX Spectrum
NERFINISHED
ⓘ
low-cost home computers in early 1980s ⓘ |
| introductoryPrice |
£69.95 kit
ⓘ
£99.95 assembled ⓘ |
| keyboardType | membrane keyboard ⓘ |
| manufacturer |
Sinclair Research
NERFINISHED
ⓘ
Timex Corporation NERFINISHED ⓘ |
| market | home computer market ⓘ |
| massStorageFormat | compact cassette ⓘ |
| maxRamWithExpansion | 16 KB ⓘ |
| notableFor |
low cost
ⓘ
mail-order sales model ⓘ popularizing home computing in the UK ⓘ |
| notablePeripheral |
16 KB RAM pack
ⓘ
disk interfaces (third-party) ⓘ joystick interface ⓘ thermal printer ⓘ |
| operatingSystem | Sinclair BASIC in ROM NERFINISHED ⓘ |
| powerSupply | external power supply ⓘ |
| predecessor | ZX80 NERFINISHED ⓘ |
| primaryLanguage | Sinclair BASIC NERFINISHED ⓘ |
| primaryStorage | cassette tape ⓘ |
| ram | 1 KB ⓘ |
| releaseDate | 1981-03-05 ⓘ |
| romContents |
Sinclair BASIC interpreter
NERFINISHED
ⓘ
operating system ⓘ |
| romSize | 8 KB ⓘ |
| successor | ZX Spectrum NERFINISHED ⓘ |
| targetUsers |
educational users
ⓘ
hobbyists ⓘ home users ⓘ |
| textResolution | 32×24 characters ⓘ |
| unitsSold | over 1.5 million units ⓘ |
| videoGenerationMethod | software-generated video ⓘ |
| videoStandard |
NTSC (Timex variants)
NERFINISHED
ⓘ
PAL ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Sinclair ZX81