March 2007
Beginner
526 pages
13h 53m
English
book
Introduction to the New Mainframe: z/VSE Basics
by Wolfgang Bosch, Hans Joachim Ebert, Helmut Hellner, G. M. (Jerry) Johnston, Wilhelm Mild, Ingolf Salm, Joerg Schmidbauer, Martin Walbruehl, Mike Ebbers
Content preview from Introduction to the New Mainframe: z/VSE Basics
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64 Introduction to the New Mainframe: z/VSE Basics
3.1 What is an operating system?
In simplest terms, an operating system is a collection of programs that manage
the internal workings of a computer system. Operating systems are designed to
make the best use of the computer’s various resources and ensure that the
maximum amount of work is processed as efficiently as possible. Although an
operating system cannot increase the speed of a computer, it can maximize its
use, thereby making the computer seem faster by allowing it to do more work in a
given period of time.
A computer’s
architecture consists of the functions the computer system
provides ...
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