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COMPUTER GENERATIONS
After these early calculating machines, the present computer took its shape in five
generations.
First Generation (1940s)
There were many computers that were a part of the first generation computers.
MARK-I
In 1944, Prof. Howard Aikens built the first electro-mechanical powered computer
named Mark-I. It used punched cards and a typewriter for input and output. It
was 50 feet long, 8 feet high, weighed 5 tons, and could perform operations like
addition, subtraction, multiplication, division, and referring to previous results.
Mark-I was much more reliable than early electronic computers.
Mark-I
ENIAC
Electronic Numerical Integrator and Computer, was the first electronic
general-purpose digital computer, built in 1945 by John Mauchly and Presper
Eckert. It contained over 18,000 vacuum tubes and was 1000 times faster than
Mark-I. ENIAC consumed almost 200 kW of power. It had no internal storage and
required frequent maintenance.
ENIAC
10 iPRIME (Ver. 2.2)–V

