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The Xerox Alto is a computer system developed at Xerox PARC (Palo Alto Research Center) in the 1970s. It is considered one of the first workstations or personal computers , and its development pioneered many aspects of modern computing.
The Altos 486 was however based on an 8-MHz Intel 80186 processor and also ran Xenix. It was however cheaper than their 586. [23] Altos 886, 1086, and 2086. Based on a 80286 central processor, and intended to support 8, 10, and respectively 20 users at terminals. The 886 used a 7.5 MHz processor, while in the other two it ran at 8 MHz. [24]
BravoX was "modeless", as was Gypsy. While Bravo (and BravoX) were originally implemented in BCPL for the Xerox Alto, BravoX was later re-implemented in a language called "Butte" ("a Butte is a small Mesa", as Charles Simonyi used to say). Alto BCPL compiled into Data General Nova machine instructions, which were in turn interpreted by Alto ...
Diablo Data Systems was a division of Xerox created by the acquisition of Diablo Systems Inc. for US$29 million in 1972, [1] [2] a company that had been founded in 1969 by George E. Comstock, Charles L. Waggoner and others. [3] [4] The company was the first to release a daisy wheel printer, in 1970. Metal Daisy Wheel for Xerox & Diablo printers
Tesler and Fairbairn took the 16 kilograms (35 lb) NoteTaker prototype on cross-country trips to demonstrate the unit to Xerox executives. At one layover during the trip, Tesler and Fairbairn briefly tested the unit at an airport and while in flight, which Tesler believed was the first-ever use of a computer in these situations. [4]
Because the impetus for the RISC-V development was the paucity of open-source processor designs for the RAMP project (both Asanovic and Patterson were PIs), it is fitting that Thacker played a role in this important future technology. Thacker died of complications from esophageal cancer on June 12, 2017, in Palo Alto, California, aged 74. [15]
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For higher resolutions, the logic and the memory chips were barely fast enough to support reading the display data, let alone for dedicating half the available time for the slow 8-bit CPU. That being said, one system, the Apple II , was one of the first to use a feature of the data-bus logic of the 6502 processor to implement a very early ...