IBM 7090 User Manual

~
Machine in
Op Keys
Manual
to SR,PR,
and Tag R
4.20.14.1
~
t
Inst
Key
Gate Op
Keys into
SR,PR,TR
Fire
Manual
2.12.09.1
Ctr! 55
!
4.20.04.1
t
Block SB. PR,
SR, TR
I7
Turn On Man
4.20.14.1
Ctr! Tgr
!
4.20.05.1
t
Suppress
Turn
On Op
PC Advance
Panel Ctr! Tgr
4.20.16.1
4.20.14.1
{
t
Turn On Ent
Turn
On Op
Inst Tgr
AO
Panel Ctr! Tgr
4.20.16.1
4.20.08.1
~
~
Turn Off Man
Execute Inst
Ctr!
Tgr
4.20.05.1
1
~
Turn Off
End
MSTTgr
A
Operation
6
4.20.11.1
On at 14 ~
~
Bring Up Not
Turn On
B Cycle
All
Man Stop Tgr
Interrupt
8.00.13.1
4.20.18.1
t
OffatA1~
Gate Master
Turn
On
I Time
All
MST Tgr
8.00.18.1 4.20.11.1
f
~~------------~vr------------~/
FIGURE 6.1-11. ENTER INSTRUCTION
17
I 9
'-
Turn on Load
Sync Tgr
60.30.06.1
Off A9
~
Bring Up
Load BCW
4.20.15.1
Turn Off
MST Tgr
4.20.11.1
FIGURE 6.1-12. LOAD CARDS
157
A2
A6
/
'-
Fire Man
Ctr! SS
Turn Off Man
Ctr! Tgr
4.20.05.1
Turn On Auto
Load Tgr
4.20.15.1
Turn On Load
Sync Tgr
60.30.06.1
Off A9
Set "S" Op
Register
Turn
Off
MST Tgr
4.20.11.1
FIGURE 6.1-13. LOAD TAPE
A6
)

IBM 7090 Specifications

General

Category	Mainframe Computer
Introduced	1959
Transistor-based	Yes
Word Length	36 bits
Add Time	4.8 microseconds
Memory	Core memory
Memory (words)	32, 768 words