Cp/M Operating System By Digital Research
CP/M Operating System by Digital Research
History of CP/M 3
History of the Personal Computer 3
Who was Gary Kidall? 4
CP/M – OS 5
User interface 6
File Management 6
Device Management 8
The Disk Drive - BIOS versus BDOS 8
Memory Management 9
Communication Services 10
About the CP/M museum online for further research 11
Reference 12
History of CP/M
History of the Personal Computer
The first microprocessor chip was created in 1968 by the Intel Corporation. The 4-bit chip, 4004, was designed for the Busicom 1141-PF calculator. This lead to the first personal computer, the Mark-8, designed in 1974, based on the 8-bit Intel 8080 chip. 1975 brought the first assembled personal computer named the Altair 8800 from Micro Instrumentation and Telemetry Systems (MITS); it was based on the 8080 chip, but had no keyboard or display. The first useful microcomputer was the IMSAI 8080, which was targeted for small business users, had a floppy drive and used the CP/M......
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