| 词条 | IBM 5280 | ||||||||||||||||||||
| 释义 |
The IBM 5280 was described by IBM as a "Distributed Data System" in its 1980 announcement.[1] Its role was described as "a new low-cost product family to enter data into larger computers, communicate data and process data on the spot." By 1982 IBM conceded that these offerings had "stiff competition" (described by a securities analyst as "have not been doing all that well.")[2] Offerings/capabilities
(*) In December 1983 IBM increased the maximum internal storage of the 5285 to 96K that "can be configured into several partitions that operate independently."[3] This feature (described as "multiprogramming") already was available in the two higher models. Printers{{visible anchor|IBM 5256}} (table-top) or {{visible anchor|IBM 5225}} (floor-standing). The 5225 had four models, (1, 2, 3, 4) and collectively they offered:
The 5225 was also offerd for use with the IBM System/36.[4] The 5256 was a dot-matrix printer[5] that could print at speeds of 40, 80 or 120 characters per second, depending on the model (1, 2, 3).[6] Programming languagesDE/RPG or COBOL are the languages supported.[7]OptionsA magnetic stripe reader could be attached. ApplicationsThe 5280 attracted attention from software vendors.[8] CloneA clone of the 5280 was made in Eastern Europe.[9] References1. ^{{cite web |website=IBM.com |url=https://www.ibm.com/ibm/history/exhibits/rochester/rochester_chronology4.html |title=Rochester chronology - 1980 |quote=.. IBM 5280 distributed data system}} {{comp-stub}}2. ^{{cite newspaper |newspaper=The New York Times |url=https://www.nytimes.com/1982/10/21/business/ibm-cuts-computer-prices.html |title=I.B.M. CUTS COMPUTER PRICES |author=Andrew Pollack |date=October 21, 1982}} 3. ^{{cite newspaper |newspaper=Computerworld |date=December 5, 1983 |page=53 |url=https://books.google.com/books?id=ujcQKXTiZeYC |title=IBM 5285, 96K}} 4. ^{{cite web |title=IBM Archives: IBM System/36 |url=https://www.ibm.com/ibm/history/exhibits/rochester/rochester_4018.html}} 5. ^{{cite web |title=IBM 5256 Dot Matrix Printer |url=https://www.govdeals.com/index.cfm?fa=Main.Item&itemid=242&acctid=586}} 6. ^{{cite web |url=ftp://ftp.blackbox.com/manuals/P/PC401A.pdf |title=Twinax Driver II - Black Box |quote=IBM 5256 M1, M2, M3}} 7. ^IBM document G580-0275-00 8. ^{{cite newspaper |newspaper=Computerworld |date=October 13, 1980 |page=55 |title=5280 Business Applications |url=https://books.google.com/books?id=XPDvkYPCkWgC}} 9. ^{{cite web |title=Consul 2715 |url=https://www.youtube.com/watch?v=OKRP6W5vd6E |quote=.. clone of IBM 5280 System - an Consul 2715 czech computer, made in Zbrojovka Brno in 1989}} 1 : IBM computers |
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