Pra não dizer que não falei de Unix… - Retrópolis

Bem, vocês sabem que a Cidade dos Clássicos tem o Unix e suas variações como os sistemas operacionais favoritos, e que sustentam o funcionamento de toda a nossa infraestrutura. Falamos dos 50 anos desse sistema operacional no episódio 142. No Abort Retry Fail, temos um artigo (que é de 2023), falando da história do XENIX,

Retrópolis - A cidade dos clássicos

[1985] COMMODORE C900 Prototype - Z Machine Z8000
This unit was sold on EvilBay in year 2010

#Commodore #CBM #C900 #Z8000 #ZMachine #Zilog #Z8000 #CPU #16Bit #Unix #MOSTechnology #retrocomputer #80s #90s #Geek

A long time ago, I had high hopes that my next computer would be based on #Z8000 #CPU instead of #Z80 but ... 😔

Captain #Zilog Crushed! : The Story of the Z8000 https://thechipletter.substack.com/p/captain-zilog-crushed-the-story-of

P.S. As far as specifications are, Z8000 1/2 is better than #Intel i8086/8088

#computer #history

Captain Zilog Crushed! : The Story of the Z8000

How Zilog lost the 16-bit microprocessor market

The Chip Letter
Calc #PrimeNumbers like on the IBM XT and the #Trump #Z8000 CoPro Board (there interpreted or compiled) in the following video from SM Baker at 15min 37sec: https://www.youtube.com/watch?v=nMOIj-yrxXY
Trump Card Z8000 PC Coprocessor card Part 2, 1980s Vintage, Lost software has been found!

YouTube

It certainly is good to share #retrocomputing pictures! More please @eiZen !

From 1983, the 16-bit #Olivetti #M20 with 4MHz #Z8000, a very sturdy all-in-one machine with a monochrome monitor on top. When I saw it, the 10MByte hard drive even spun up, noisily, and worked.

Shortly after, the above Basic benchmark ran at 3x the speed of an Acorn BBC Micro.

https://pluspora.com/uploads/images/4079b3af639b54393626.png

16-bit #retrocomputing with the 4MHz #Z8000 in the 1983 #Olivetti #M20, a sturdy all-in-one with 160k RAM and noisy 10M hard drive. The B key didn't work, nor did the video. Some refurb later, it ran the SPHERE benchmark, in Olivetti Basic (37697 bytes free), at about 3x the speed of a Beeb. (Mono graphics, 256x512.)

More photos, inside and out:
https://revaldinho.smugmug.com/Vintage-Technology/Olivetti-M20

You can add a colour board, or an x86 card for DOS.

Lots more:
http://www.z80ne.com/m20/
https://maben.homeip.net/static/S100/olivetti

Olivetti M20 - revaldinho

Olivetti M20 D Z8000 Based Microcomputer