Technical Systems Consultants

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Technical Systems Consultants was an US software company that was instrumental in the first wave of the personal computer revolution.

Headquartered first in West Lafayette, Indiana (it was started by graduates from Purdue University) and later (1980) in Chapel Hill, North Carolina, it was the foremost supplier of software for SWTPC compatible hardware, as well as many other early makes of personal computers. Their software included operating systems (Flex, mini-FLEX, FLEX09, and UniFlex) and various languages (several BASIC variants, FORTRAN, Pascal, C, assemblers, etc) and other applications.