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DATA REPRESENTATION

CONTENT

  1. Definition Data Representation
  2. Description of Data Representation Methods
  3. Computer Character Sets

 

Definition of Data Representation

Data Representation is the way that the physical properties of a medium are used to represent data and the manner in which data is expressed symbolically by binary digits in a computer.

Description of Data Representation Methods

Data can be represented in the following ways:

Bits: A bit is simply a 1or a 0. A true or a false. It is the most basic unit of data in a computer. It is also called machine language. A bit (also called binary) is the basic unit of information in computing and telecommunication. It is one of two possible distinct states.

BCD: BCD stands for binary coded decimal. It is a digital encoding method for numbers using decimal notations, with each decimal digit represented by its own binary sequence. In BCD, a numeral is usually represented by four bits which in general, represents the decimal range 0 through 9 to 00000000 through 00001001.

Lesson tags: Computer Science Lesson Notes, Computer Science Objective Questions, SS3 Computer Science, SS3 Computer Science Evaluation Questions, SS3 Computer Science Evaluation Questions Second Term, SS3 Computer Science Objective Questions, SS3 Computer Science Objective Questions Second Term, SS3 Computer Science Second Term
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