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2030 Processing Unit
Main
Storage
Input/
r--..-(
Output
Channel
Control
Unit
Random
Access
Device
Control
Unit
Random
Access
Device
Data and Control Information
-4.----~
Ari thmeti c,
Control, and
Register
Systems
Figure 1-5.
General Data Flow
SYSTEM CONCEPTS
•
Programming Systems support of the
IBM System/360 is called Operating
System/360.
Control
Unit
•
The Operating System/360 supports
the Computing System/360.
Together
they make up the IBM System/360.
The introduction of the IBM Systeml360
marks the achievement of a truly all-
purpose computer that can solve any type
of data-handling problem with greater
speed and efficiency than ever before.
This opens up greatly increased computer
potential in every area.
In order to realize this potential,
it was apparent to the designers that
the programming support needed to be as
powerful and as extensive as the
Control Unit
Printer
computer.
In fact, programming support
should make the IBM System/360 an even
mO.re powerful system.
This lead to the concept of the Com-
puting System/360 (hardware) being sup-
ported by the Operating System/360
(programming), together making up the
System/360.
r--------------------------,
I
I
,
I
'r------------------, ,
I
IComputing System/3601
I
I
l ____________________ J
I
I
I
,
Operating System/360
I
L __________________________ J
IBM System/360
This means that a customer is getting
a system that is powerful and flexible,
1-5
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