
The IBM 405 Alphabetical Accounting Machine - Columbia …
The IBM 405 Alphabetical Accounting Machine, 1934. This was IBM's high-end tabulator offering (and the first one to be called an Accounting Machine), complementing its numeric-only 285 . The 405 was programmed by a removeable plugboard with over 1600 functionally significant "hubs", with access to up to 16 accumulators, the machine could ...
Tabulating machine - Wikipedia
ibm 405: Introduced in 1934, the 405 Alphabetical Accounting Machine was the basic bookkeeping and accounting machine marketed by IBM for many years. Important features were expanded adding capacity, greater flexibility of counter grouping, [ b ] direct printing of the entire alphabet, direct subtraction [ c ] and printing of either debit or ...
IBM 402 - Wikipedia
The IBM 402 and IBM 403 Accounting Machines are tabulating machines introduced by International Business Machines in the late 1940s. The 402 could read punched cards at a speed of 80 to 150 cards per minute, depending on process options, while printing data at a speed of up to 100 lines per minute.
IBM 405 Accounting Machine - IT History Society
Introduced in 1934, the 405 Alphabetical Accounting Machine was the basic bookkeeping and accounting machine marketed by IBM for many years. Important features were expanded adding capacity, greater flexibility of counter grouping, direct printing of the entire alphabet, direct subtraction and printing of either debit or credit balance from any ...
「未来の考古学」より〜IBM 405 会計機 | Think Blog Japan
2022年11月8日 · IBM 405 会計機は、後継機であるIBM 407 会計機とともに、日本IBMのビジネスを牽引していました。 ビジネスショーの日本IBMブース。 社名看板の下に「TYPE 405 英字式会計機」と書かれた小さな看板があります。 (日本IBM 50年史より) この写真は、日本IBM 50年史に掲載されている1953年のビジネスショー(かつて開催されていた事務機器・OA機器などの展示会)の日本IBMブースの様子です。 社名看板の下の小さな看板に「TYPE 405 英字 …
Identifying the "Early IBM Computer" in a Twitter photo: a 405 ...
The IBM 405 was IBM's first "Alphabetic Accounting Machine," able to print text as well as numbers. It had more complexity than you might expect from the 1930s, able to generate three levels of subtotals, intermediate totals, and grand totals.
历史的瞬间——为什么早期人类计算机程序员和安装员大多是女人?|ibm…
2022年8月21日 · IBM 405字母记账机(IBM 405 alphabetic bookkeeping and accounting machine,后称405电动打孔卡记账机)是一种加、减、印一体机,可将打孔记账机卡片上的完整报表打印出来。 它可用于列出单个会计机卡中的字母和数字详细信息,或打印分类以及累积和打印总计、净总计和累计净总计。 该机器配备了自动插板,原则上类似于电话交换机,通过它可以从打孔卡中获得任何所需的数据排列。 会计机打印出来的流水照片. IBM405会计机的使用照片. 而根 …
处理器简史|PowerPC 10:烽火连天 颓势初显(下) - 少数派
2024年4月18日 · IBM 宣称其运行速度比前代快了 3 倍,并且在 250nm 工艺生产时,Die 面积仅为 49mm²,整体功耗只有 1.1W。 PowerPC 405GP(左)及其 Die shot(右) 这样一款单颗芯片售价仅 41 美元的高性价比芯片带来了新一轮采购热潮。
百年IBM是否还值得我们致敬?任正非:IBM 教会了我们怎么爬 …
2024年9月12日 · 1934年:IBM 405型字母式机电会计机,到50年代中期都是IBM旗舰产品。 1934年:IBM公司为北京协和医院安装了第一台商业处理机。 1935年:IBM的卡片统计机产品,占领美国市场的85.7%,IBM公司因卡片机的大量销售而积累雄厚的财力和强大的销售服务能力,为以后成为计算机领域的主宰奠定了重要的基础。 1935年:老沃森宣布IBM男女员工同薪同酬,比美国《民权法》推出早30年。 1936年:IBM与政府合作实施1935年的美国《社会保障法》, …
IBM 405 Alphabetic Accounting Machine (1934) | 102645478 - CHM
B/W, Perspective view of IBM 405 Alphabetic Accounting Machine; first accounting machine that replaced tabulators . Flat, white background. "GV20-9502" typed, lower left corner.
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