ICL 1900 series
E454376
The ICL 1900 series was a family of mainframe computers introduced in the 1960s that became a cornerstone of British computing in business, government, and education.
Statements (63)
| Predicate | Object |
|---|---|
| instanceOf |
computer architecture
ⓘ
mainframe computer family ⓘ |
| addressSpace | 24-bit logical address space ⓘ |
| architectureType |
binary
ⓘ
single-address ⓘ |
| basedOn | ICT 1900 architecture NERFINISHED ⓘ |
| characterEncoding | ICL 1900 6-bit character set NERFINISHED ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| era | third generation computers ⓘ |
| hardwareTechnology |
core memory
ⓘ
discrete transistor logic ⓘ |
| influenced | development of British computing standards ⓘ |
| instructionSet | ICL 1900 instruction set NERFINISHED ⓘ |
| introduced |
1960s
ⓘ
1964 ⓘ |
| iODevices |
disc drives
ⓘ
line printers ⓘ magnetic tape drives ⓘ punched card readers ⓘ |
| manufacturer | International Computers Limited NERFINISHED ⓘ |
| market |
British computing market
ⓘ
European computing market ⓘ |
| notableModel |
ICL 1901
NERFINISHED
ⓘ
ICL 1902 NERFINISHED ⓘ ICL 1903 NERFINISHED ⓘ ICL 1904 NERFINISHED ⓘ ICL 1905 NERFINISHED ⓘ ICL 1906 NERFINISHED ⓘ ICL 1907 NERFINISHED ⓘ ICL 1909 NERFINISHED ⓘ |
| notableSite |
UK Atomic Energy Authority
NERFINISHED
ⓘ
University of London Computer Centre NERFINISHED ⓘ |
| operatingSystem |
E4BM
ⓘ
EXECUTE ⓘ GEORGE 2 NERFINISHED ⓘ GEORGE 3 NERFINISHED ⓘ GEORGE 4 NERFINISHED ⓘ JOSS NERFINISHED ⓘ MAXIMOP NERFINISHED ⓘ MINIMOP NERFINISHED ⓘ |
| predecessor | ICT 1900 series NERFINISHED ⓘ |
| primaryUse |
business data processing
ⓘ
education ⓘ government computing ⓘ scientific computing ⓘ |
| status | discontinued ⓘ |
| successor | ICL 2900 series NERFINISHED ⓘ |
| supportedLanguage |
ALGOL
NERFINISHED
ⓘ
COBOL NERFINISHED ⓘ FORTRAN NERFINISHED ⓘ JOVIAL ⓘ PLAN ⓘ RPG ⓘ assembler ⓘ |
| supports |
batch processing
ⓘ
multiprogramming ⓘ time-sharing (on some models) ⓘ |
| usedIn |
British government departments
ⓘ
British local authorities ⓘ British universities ⓘ commercial banks in the United Kingdom ⓘ insurance companies in the United Kingdom ⓘ |
| wordLength | 24-bit ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.