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Today's Computers
Architecture
CSIRAC and Today’s Computers
All computers from the first generation onwards have the following in common:
at least one central processing unit, one memory, one input for programs and data and one output for results
program and data are stored in the same memory and in the same form - digital code.
CSIRAC
Laptop 2005
Processing Speed
500 - 1000 Hz
2000 million Hz
Memory Capacity
2000 bytes
600 million bytes
Size
40 sq m
0.2 sq m
Weight
2500 kg
2.5 kg
Power Consumption
30,000 watts
10 watts
Technology
2000 valves
microchip equivalent to tens of millions of valves
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