TIM-600 was an important PC computer system in the TIM series of microcomputers from Mihajlo Pupin Institute-Belgrade, developed from 1987 to 1988.

It has word-length of 32 bits, basic cycle time of 20 MHz and operating system Unix V.3.

There were a maximum of eight TIM terminals or other equipment units connected by RS-232C.

Also, there were possibilities for the connections of two hard disks as well as the magnetic cassettes and diskettes.

[5][6][3] The TIM-600 computer system was used for business data processing in many offices in Serbia, for example in public, health, and scientific organizations; for process automation in industrial production; in road traffic control; in some banks; for military and government services, etc.