Managing microprocessors — a guide to project management
1981; Elsevier BV; Volume: 5; Issue: 1 Linguagem: Inglês
10.1016/0141-9331(81)90516-0
ISSN1872-9436
Tópico(s)Embedded Systems Design Techniques
ResumoThis chapter discusses the 8086 family history and architecture. The history of the 80×86 chip family explains a lot about the current and future Intel products. The basis of the 80×86 family of microprocessors began in 1972 when the Intel Corporation began selling an 8-bit microprocessor, the 8008. The design was basically intended as a controller chip for computer displays. In 1973, Intel announced the 8080 microprocessor, another 8-bit chip. This chip ran at a speed of 2 MHz. In 1978, Intel announced the 8086 microprocessor. This was a 16-bit chip with a 16-bit data bus and a 20-bit address bus. To help programmers make the transition to the new chip, the 8086 could do everything that the 8080 could, but it was not source code or executable code compatible. However, programs written for the 8080 could be easily translated to the 8086 assembly language because it had all the same or similar instructions.
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