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The Datamatic Division of Honeywell announced the H-800 electronic computer in 1958. The first installation occurred in 1960. A total of 89 were delivered. The H-800 design was part of a family of 48-bit word, three-address instruction format computers that descended from the (Datamatic 1000 ), which was a joint Honeywell and Raytheon project started in 1955. The 1800 and 1800-II were follow-on designs to the H-800.〔Mark Smotherman (Paper about the Honeywell 800 )〕〔The author was programming this machine from January to August 1966 for the Eastern Electricity Board. Staff from General Electric Company plc and South Eastern Electricity Board attended the same courses.〕 ==Data== The basic unit of data was a word of 48 bits. This could be divided in several ways: * 8 Alphanumeric characters of 6 bits each * 12 Hexadecimal or Decimal characters of 4 bits each * 16 Octal characters of 3 bits each * An instruction with four components of 12 bits each: the operation to be performed, and three memory addresses. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Honeywell 800」の詳細全文を読む スポンサード リンク
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