Representing and manipulating data in computers
Representing and manipulating data in computers

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Representing and manipulating data in computers

8 Logic operations

8.1 Introduction

Study note: You may like to have the Numeracy Resource to hand as you study Section 15. It offers extra practice with the logic operations, and you may find this useful.

Please click on the 'View document' link below to read the Numeracy Resource.

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In this section I shall briefly introduce four logic operations. They are all very easy to perform.

Logic operations provide a useful means of accessing and manipulating an individual bit, or several bits, in a binary word. For instance, they can be used to test whether a particular bit is 1 or 0, or to ensure that a particular bit has a pre-defined value irrespective of the value of all the other bits. You will see examples of the use of logic operations later in the course; but for the present you need to concentrate on what they are and how they work.


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