> Symbolics was really a minicomputer manufacturer, building up CPUs from smaller parts. Up to 1987. In 1988 they switched to microprocessors. > They went dow

> Symbolics was really a minicomputer manufacturer, building up CPUs from smaller parts. Up to 1987. In 1988 they switched to microprocessors. > They went down with the other mini makers - DEC, Prime, Data General, Interdata, Tandem, and the rest of that crowd. That technology was obsoleted by single-chip CPUs. Symbolics introduced their single chip LISP CPUs in 1988. That one was used in their workstations, boards for SUNs and Macs, and in embedded applications. That's my Symbolics LISP Machine as a board for an Apple Macintosh Quadra: https://pbs.twimg.com/media/BzRIoEKIMAA2kli?format=jpg&name=small https://pbs.twimg.com/media/BzRIoEKIMAA2kli?format=jpg&name=... It uses a microprocessor. The daughterboard is RAM.