The document discusses the history of early computers including ENIAC, EDVAC, EDSAC, UNIVAC-I, and ARPANET. Key details provided include that ENIAC was the first general purpose electronic computer unveiled in 1946. EDVAC was developed starting in 1945 and was one of the first stored-program computers. EDSAC was developed at the University of Cambridge and was one of the earliest practical stored-program computers.

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97. ENIAC
Electronic Numerical Integrator and Computer

98. ENIAC

99. ENIAC
• 1946
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107. ENIAC
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115. EDVAC
(Electronic Discrete Variable Automatic Computer )

118. EDSAC

119. EDSAC
• Bell
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120. EDVAC

122. 194x
ENIAC -
1946
ENIAC
18,800 1,500 10 2.8msec
1949
EDSAC
Bell
1950
UNIVAC-Ⅰ
IBM
1951
EDVAC
UNIVAC-1

123. 194x
ENIAC -
1946
ENIAC
18,800 1,500 10 2.8msec
1949
EDSAC
Bell
1950
UNIVAC-Ⅰ
IBM
1951
EDVAC
UNIVAC-1

133. - 1960
• ARPANET
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