Data Representation
One of the major problems we face in using a digital computer is communicating with it. We must have one or more ways of getting data into the computer to be processed. There are several types of input devices that read data into a computer. But hoe does one prepare the data to be used as input….? How do we convert human-readable documents into a computer-readable form, and what type of input media do we use…? Well, as you probably suspect, there are several ways to perform this conversion process.
Number Systems
The term number system refers to the schemes implemented in digital computer and calculator hardware and software to represent numbers. Different numbers systems such as Decimal, Binary, Octal and Hexadecimal are used by people. A number system has Base/Radix and there are several symbols which are used as digits.
Number of symbols in the number system is equal to the value of the base. The value of each digit determined by the symbol used and the position where it appears (position value)
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