TIFRAC

TIFRAC (Tata Institute of Fundamental Research Automatic Calculator) was the first computer developed in India, at the Tata Institute of Fundamental Research in Mumbai.

[citation needed] TIFRAC included 2,700 vacuum tubes, 1,700 germanium diodes and 12,500 resistors.

[citation needed] A cathode ray tube display system was developed to serve as an auxiliary output to the computer for analogue and digital display of both graphs and alpha-numeric symbols.

A manual console served as the input/output control unit of the computer.

The software of TIFRAC were written in a series of commands of 0s and 1s (machine code).

Professor Rangaswamy Narasimhan demonstrating the first Indian digital computer to Jawaharlal Nehru and Homi J. Bhabha at Tata Institute of Fundamental Research