What is a Computer? Throughout history there have been many forms of
computers used by man. However, the modern computer is basically an electronic
device which can respond to commands. A modern computer is designed to receive
either a set of instructions from the operator or a program, and then carry out
the required tasks by performing calculations on numerical data or by compiling
and correlating other forms of information. Without the development of the
computer, our modern world of high technology would not have developed.
Computers affect us all and are used in many of today’s industries, some of
which are:
• Banking transactions (Autobanks)
• Household accounts (Budgets)
• Automated manufacturing (Producing a modern car)
• Communications (Telephone systems)
• Shopping (Buying over the Internet) In the modern computer world, there are
two main types of computers in use, namely analog and digital. This course
concentrates on the digital computer, which basically solves problems by
performing sums and by dealing with each number digit by digit.
Source: http://www.nou.edu.ng/uploads/NOUN_OCL/pdf/SST/CIT%20101.pdf
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