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Speed
Instruc-
tion
Overlap
I/O
Hardwired
Number
Number
Memory (relative Fetch (Chan- Floating- of Index of to 701) Overlap nels) Point Registers Opcodes Size (K) 1 no no no 0 24 2–4 2.5 no no yes 3 80 4–32 4 no yes yes 3 140 32 25 no yes yes 3 169 32 30 yes yes yes (double 7 185 32 precision) 50 yes yes yes (double 7 185 32 precision)
Example members of the IBM 700/7000 Series
Cycle Time (s) M 30 12 12 2.18 2 1.4

Memory Tech- nology Electrostatic tubes Core Core Core Core Core

CPU Tech- nology Vacuum tubes Vacuum tubes Vacuum tubes Transistor Transistor Transistor

First Delivery 1952 1955 1958 1960 1962 1964

Table 2.3 Model Number 701 704 709 7090 7094 I 7094 II

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