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Its interesting that it took so long for Intel 32 bit operating systems to be developed. The Compaq 386 first came out in 1987. This is dated 1991.
by hoodoof 9y ago
Its interesting that it took so long for Intel 32 bit operating systems to be developed. The Compaq 386 first came out in 1987. This is dated 1991.
- illys 9y agoBSD had a slow start, not "Intel 32 bit operating systems": other flavors of Unix were delivered before 1991. SCO UNIX was delivered in 1989: https://en.wikipedia.org/wiki/OpenServer#Versions https://en.wikipedia.org/wiki/OpenServer#Versions BSD was slow because in the early 1990s they had a major constraint before working on ports: they had to get rid of AT&T code whose licenses were very expensive and blocking distribution. The cleaning was complete in June 1991. Source: https://en.wikipedia.org/wiki/Berkeley_Software_Distribution#History https://en.wikipedia.org/wiki/Berkeley_Software_Distribution...
- rjsw 9y agoThere was 386/ix from Interactive Systems Corporation too [1], I was using it on a PC in 1988. [1] https://en.wikipedia.org/wiki/Interactive_Systems_Corporation#Interactive_Unix https://en.wikipedia.org/wiki/Interactive_Systems_Corporatio...
- forgottenacc57 9y agoSco unix was for the 286
- kjs3 9y agoSCO Xenix was for the 8086/286. SCO Unix was for the 386. Read the link.
- nils-m-holm 9y agoThere were SCO Xenix versions for the 8086, 80286, and then the 386. I only remember SCO UNIX for the 386.
- illys 9y agoNop, SCO UNIX started with 386. The SCO company was delivering the Xenix OS for 286.
- kjs3 9y agoSCO also had a substantial existing revenue stream to support the port, so they apply more resources to get it out the door.
- magoghm 9y agoAltos Computer Systems released its Altos 386 2000 computer running Unix in 1987 https://classictech.wordpress.com/computer-companies/altos-computer-systems-san-jose-calif/ https://classictech.wordpress.com/computer-companies/altos-c...
- convolvatron 9y agowhen did x86 add mmu support? it would have been pretty hard with segments (maybe not...oh yeah, you would have had to swap segment registers on demand alot*)