EDVAC received a number of upgrades including floating-point arithmetic unit in 1958.
2.
However, once the Z1 was completed, the arithmetic unit did not function correctly.
3.
Pomerene designed and implemented the adder portion of the arithmetic unit.
4.
It used 2, 850 Vacuum tubes and 1, 040 semiconductor diodes in the arithmetic unit.
5.
The central processor was the high-speed arithmetic unit that functioned as the workhorse of the computer.
6.
Data had to be transferred between these drums and the drum the arithmetic unit could access via registers implemented by electromechanical relays.
7.
Two arithmetic units were provided for integer operations : one of 32 bits and another capable of performing 32-bit operations and 64-bit operations.
8.
The electronics of the memory and arithmetic units could store and operate on 60 such numbers at a time ( 3000 bits ).
9.
The arithmetic unit could access two other drums one contained 150 words of constants and the other contained 200 words of variables.
10.
The analytical engine had expandable memory, an arithmetic unit, and logic processing capabilities able to interpret a programming language with loops and conditional branching.
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