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THE MEMORY UNIT

CONTENT

  1. Differences between Primary and Secondary Memory
  2. Units of Storage
  3. Conversion from One Unit to the Other
  4. Comparison of Auxiliary Storage Devices

 

Differences between Primary and Secondary Memory

As earlier discussed, Computer memory can be categorized into primary and secondary memory. Both memories vary in the speed, cost and capacity. The table below shows the clear differences between both memories; 

EVALUATION

  1. Enumerate FIVE differences between Primary and Secondary memory

 

Units of Storage

Data in a computer is represented or stored in series of bits. Computer data storage provides one of the core functions of the modern computer, that of information retention. It is one of the fundamental components of all modern computers. We have various units of storage, they are as follows;

(i) Bit

(ii) Nibble

(iii) Byte

(iv) Kilobyte (KB)

(v) Megabyte (MB)

(vi) Gigabyte (GB)

(vii) Terabyte (TB)

(viii) Word

 

(i) Bit

This refers to the smallest basic unit of information that can be stored on a machine.

Lesson tags: Computer Science Lesson Notes, Computer Science Objective Questions, SS2 Computer Science, SS2 Computer Science Evaluation Questions, SS2 Computer Science Evaluation Questions First Term, SS2 Computer Science First Term, SS2 Computer Science Objective Questions, SS2 Computer Science Objective Questions First Term
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