May 2014
Beginner
266 pages
11h 32m
English
Content preview from Students' Guide to Information Technology, 2nd Edition
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Students Guide to Information
Technology
gates.
The bits flowing down the control circuit pass each set of logic
gates,
but only one set will output
a
current and so close
a
switch.
Programming languages
In the early days of computing, programmers wrote these instructions
as sequences of
Os
and Is. This is called
machine
code,
as it is the code or
language
that the machine understands. A program to carry out even
quite
a
simple task consists of many machine code instructions, and so
program-writing in the early days was very time consuming and
arduous. Machine code is sometimes called the first generation
programming language.
To simplify matter ...
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