The  TIM-100  was a PTT microcomputer developed by Mihajlo Pupin Institute ( Serbia ) in 1985 (Ref.lit # 1). It was based on the Intel microprocessors types 80×86 and VLSI circuitry. RAMhad capacity max.8MB, and the external memory were floppy disks of 5.25 or 3.50 inch. (Ref.literature # 2, # 3 and # 4). Multiuser, multitasking Operating system was real-time NRT and also TRANOS (developed by PTT office).

See also

  • Mihajlo Pupin Institute
  • History of computer hardware in the SFRY
  • Microcomputers


  • 1. D.Milicevic, D.Starcevic, D.Hristovic: “Architecture and Applications of the TIM Computers”, Primenjena nauka journal, No. 14, pp. 23-30, Belgrade May 1988. (in Serbian)
  • 2. Dragoljub Milicevic, Dusan Hristovic (Ed): RACUNARI TIM (TIM Computers), Naucna Knjiga, Belgrade 1990.
  • 3. Computing Technology in Serbia, by Dusan Hristovic, Phlogiston, No. 18/19, pp. 89-105, Museum MNT-SANU, Belgrade 2010/2011. (in Serbian)
  • 4. 50 Years of Computing in Serbia – Hronika digitalnih decenija, by DBVujaklija, N. Markovic-Ed, pp. 37-44 and 75-86 in this book, PC Press, Belgrade 2011. (in Serbian).

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