Page 51 -

Speed (relative to 701) 1 2.5 4 25 30 50

Instruc- tion Fetch Overlap no no no no yes yes

Overlap
I/O (Chan- nels) no no yes yes yes yes

Hardwired Floating- Point no yes yes yes yes (double precision) yes (double precision)

Number of Index Registers 0 3 3 3 7 7

Number of Opcodes 24 80 140 169 185 185

Memory Size (K) 2–4 4–32 32 32 32 32

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

27