Originally Posted by
esa-aardvark
286, where would you purchase those nowadays ?
https://www.rocelec.com/part/INTINTN80286-12
It is still possible to get some of the old CPU’s if they have been used in high numbers in embedded systems. (Some companies specializes in production of old semiconductor designs )
It is very painful to maintain old embedded software.
I have 10 years back made an update on a 80186 embedded system.
Programmed in Modula2, with a DOS based compiler from 1988.
Not everything is working inside a Virtual Machine, even RS232 timing is broken.