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The history of computing hardware spans the developments from early devices used for simple calculations to today's complex computers, encompassing advancements in both analog and digital technology. The first aids to computation were purely mechanical devices which required the operator to set up the initial values of an elementary arithmetic ...
An excellent computer history site; the present article is a modified version of his timeline, used with permission. The Evolution of the Modern Computer (1934 to 1950): An Open Source Graphical History, article from Virtual Travelog
Stephen White, A Brief History of Computing; The Computer History in time and space, Graphing Project, an attempt to build a graphical image of computer history, in particular operating systems. The Computer Revolution/Timeline at Wikibooks "File:Timeline.pdf - Engineering and Technology History Wiki" (PDF). ethw.org. 2012.
The history of computing hardware starting at 1960 is marked by the conversion from vacuum tube to solid-state devices such as transistors and then integrated circuit (IC) chips. Around 1953 to 1959, discrete transistors started being considered sufficiently reliable and economical that they made further vacuum tube computers uncompetitive .
An article in Popular Electronics (January 1975), described the computer and invited people to order kits. Despite the limited processing power, input/output system ( blinkenlights and toggle switches) and memory (256 bytes), around 200 were ordered on the first day. 10,000 units were eventually shipped at a kit price of US$397 each.
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The history of the personal computer as a mass-market consumer electronic device began with the microcomputer revolution of the 1970s. A personal computer is one intended for interactive individual use, as opposed to a mainframe computer where the end user's requests are filtered through operating staff, or a time-sharing system in which one large processor is shared by many individuals.
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