Editing Zilog Z80 (section)

=== Desktop computers ===
{{See also|list of home computers }}
[[File:ColecoVision-Open-FL.jpg|thumb|right|The Z80A was used as the CPU in a number of gaming consoles, such as this [[ColecoVision]].]]
During the late 1970s and early 1980s, the Z80 was used in a great number of fairly anonymous business-oriented machines with the [[CP/M]] operating system, a combination that dominated the market at the time.<ref>{{Cite book |last=Holtz |first=Herman |url=https://archive.org/details/computerworkstat0000holt |title=Computer work stations |date=1985 |publisher=Chapman and Hall |isbn=978-0-412-00491-9 |page=223 |quote=and CP/M continued to dominate the 8-bit world of microcomputers. |url-access=registration}}</ref><ref>{{Cite magazine |last=Dvorak |first=John C. |date=May 10, 1982 |title=After CP/M, object oriented operating systems may lead the field |url=https://books.google.com/books?id=bDAEAAAAMBAJ&pg=PA20 |url-status=live |archive-url=https://web.archive.org/web/20240106211122/https://books.google.com/books?id=bDAEAAAAMBAJ&pg=PA20 |archive-date=January 6, 2024 |magazine=[[InfoWorld]] |publisher=InfoWorld Media Group |page=20 |volume=4 |issue=18 |issn=0199-6649 |quote=The idea of a generic operating system is still in its infancy. In many ways it begins with CP/M and the mishmash of early 8080 and Z80 computers.}}</ref> Four well-known examples of Z80 business computers running CP/M are the [[Heathkit H89]], the portable [[Osborne 1]], the [[Kaypro]] series, and the [[Epson QX-10]]. Less well-known was the expensive high-end [[Otrona]] Attache.<ref>{{Cite web |last=Stengel |first=Steven |title=Otrona Attache |url=http://oldcomputers.net/attache.html |url-status=live |archive-url=https://web.archive.org/web/20231227190448/https://oldcomputers.net/attache.html |archive-date=December 27, 2023 |access-date=March 5, 2019 |website=Steve's Old Computer Museum}}</ref> Some systems used multi-tasking operating system software (like [[MP/M]] or [[Morrow Designs|Morrow]]'s Micronix) to share the one processor between several [[concurrent user]]s.

[[File:ZX Spectrum.jpg|thumb|A [[Sinclair Research|Sinclair]] [[ZX Spectrum]] which uses a Z80 clocked at 3.5&nbsp;MHz]]
Multiple home computers were introduced that used the Z80 as the main processor or as a plug-in option to allow access to software written for the Z80. Notable are the [[TRS-80]] series, including the original model (later retronymed "Model I"), [[TRS-80 Model II|Model II]], [[TRS-80 Model III|Model III]], and [[TRS-80 Model 4|Model 4]], which were equipped with a Z80 as their main processor, and some (but not all) other TRS-80 models which used the Z80 as either the main or a secondary processor. Other notable machines were the [[Digital Equipment Corporation|DEC]] [[Rainbow 100]], and the [[Seequa Chameleon]], both of which featured both an [[Intel 8088]] and a Z80 CPU, to support either 8-bit CP/M-80 applications running on the Z80, or a custom MS-DOS that was not fully compatible with [[PC DOS]] applications running on the 8088.

In 1981, Multitech (later to become [[Acer Inc.|Acer]]) introduced the [[Microprofessor I]], a simple and inexpensive training system for the Z80 microprocessor. Currently, it is still manufactured and sold by Flite Electronics International Limited in [[Southampton, England]].

In 1984 Toshiba introduced the Toshiba MSX HX-10 in Japan and Australia.

In 1985, [[Sharp Corporation|Sharp]] introduced the [[Hotbit]] and [[Gradiente]] introduced the [[Gradiente Expert|Expert]], which became the dominant 8-bit home computers in [[Brazil]] until the late 1980s.