Primary Storage Devices

Types of Primary Storage Devices

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There are two types of primary storage:

  1. Random Access Memory (RAM) – Volatile primary storage
  2. Read Only Memory – Non-volatile primary storage

Types of Read Only Memory (ROM)

  • Programmable Read Only Memory (PROM)
  • Erasable Programmable Read Only Memory (EPROM)

Electrically Erasable Programmable Read Only Memory (EEPROM)

Primary Storage Functions

Exercise 3

I) Which of the following is the most common type of volatile memory


(B) Flash memory




II) A Primary storage device that may be programmed once by the user.






III) What are the differences between RAM and ROM?


(2 marks)


IV) Every computer system is made up of hardware and software. Explain what is meant by hardware and software.


(4 marks)

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