Glaze Aubrey Villanueva
Group Leader/PPT Editor&Designer/Reporter-Uses
• The ABC was
1937 to 1942
at Iowa State
• world’s first electronic-digital computer
• It weighed 750 lbs, computed 0.06
operations per second had 0.37 KB in
• It was announced as an electrical
computing machine with more than 300
vacuum tubes that would compute
complicated algebraic equations.
• Ideas from the ABC were used in the
design of ENIAC.
• Using binary digits to represent all
numbers and data.
• Performing all calculations using
electronic rather than wheels, ratchets,
or mechanical switches.
• Organizing a system in which
computation and memory are
• It could do 30 add/subtract operations
Electrical Numerical Integrator
And Calculator (ENIAC)
• They began
making it in
ended in 1946
• The ENIAC was the first successful general
purpose electronic digital computer that was
built in during World War II.
• It had a speed of one thousand times that of
• It contained 17,468 vacuum tubes, along with
70,000 resistors, 10,000 capacitors, 1,500
relays, 6,000 manual switches and 5 million
• ENIAC was a modular computer, composed of
individual panels to perform different functions.
• It costs almost $500,000 and required 6 full-
time technicians to keep it running.
• In one second, the ENIAC (one
thousand faster than any other
calculating machine to date) could
perform 5,000 additions, 357
multiplications and 38 divisions.
• It was used for many other
• ENIAC’s field of application included