27 gen 1948 anni - IBM finished the SSEC (Selective Sequence Electronic Calculator). It was the first computer to modify a stored program. About 1300 vacuum tubes were used to construct the arithmetic unit and eight very high-speed registers, while 23000 relays were used in the control structure and 150 registers of slower memory.
Aggiunto al nastro di tempo:
Data:
27 gen 1948 anni
Adesso
~ 76 years ago
