History of Zilog Z80

	Revision 8 . . (edit) October 16, 2001 10:19 am by (logged).177.93.xxx
	Revision 7 . . (edit) October 16, 2001 10:17 am by (logged).177.93.xxx
	Revision 6 . . (edit) October 16, 2001 10:16 am by (logged).177.93.xxx
	Revision 5 . . (edit) October 16, 2001 10:11 am by (logged).177.93.xxx
	Revision 4 . . (edit) October 16, 2001 10:10 am by (logged).177.93.xxx
	Revision 3 . . October 9, 2001 12:45 am by (logged).188.1.xxx [home computers are not everything...]
	Revision 2 . . October 8, 2001 9:49 pm by Drj [8080 compatible]
	Revision 1 . . September 26, 2001 9:10 pm by Drj [described. briefly]

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Difference (from prior major revision) (minor diff, author diff)

Changed: 1c1

The Zilog Z80 is a CPU designed and manufacted by Zilog?.

The Zilog Z80 is an 8-bit? CPU designed and manufacted by Zilog?.

Changed: 3c3

It its day it was a very popular 8-bit? CPU and was at the heart of many computer designs.

The processor was designed in the late 1970's. In the early 1980's it was very popular in 8-bit? computer designs, and later on it has been a popular embedded microprocessor.

Changed: 5c5,7

The Z80 was compatible with the Intel 8080 in a way which meant that most 8080 code could run unmodified on the Z80. The operating system CP/M was designed to run on 8080 based systems and could also run unmodified on Z80 based systems. Z80 systems were in general more powerful and had more powerful facilities than 8080 systems so this option was popular. Some version of CP/M and many CP/M applications came in more powerful Z80 only versions.

The Z80 was designed to be binary compatible with the Intel 8080 so that most 8080 code could run unmodified on the Z80. The operating system CP/M was designed to run on 8080 based systems and could also run unmodified on Z80 based systems. Z80 systems were in general more powerful and had more powerful facilities than 8080 systems so this option was popular. Some version of CP/M and many CP/M applications came in more powerful Z80 only versions. Notable later-day uses of the processor include some [Texas Instruments]? (TI)? calculators, and the portable video game console Game Boy.

Removed: 7d8

In the 1990s (and beyond) it found a use in the portable video game console Game Boy.