MEMORY | PRIMARY MEMORY | RAM (RANDOM ACCESS MEMORY) | TYPE OF RAM | ROM (READ ONLY MEMORY) | TYPE OF ROM.

 MEMORY

PRIMARY MEMORY

1) RAM (RANDOM ACCESS MEMORY)

  • Ram is call random access because one can access any memory call which is the basic unit of data storage.
  • It is a volatile memory.
  • Ram is used for temporary storage of data.

TYPE OF RAM

  • SRAM
  • DRAM
  • EDO RAM
  • VRAM
  • RD RAM
  • SDRAM
  • DDRRAM

2) ROM (READ ONLY MEMORY)

  • Non-volatile memory.
  • Contains PC startup instruction.
  • it is chip present on the motherboard.

The following are the set of programs contained in ram.

POST (POWER ON SELL TEST)

The post test computers , processors , memory , chipset , video adapter , disk drives and other hardware.

BIOS (BASIC INPUT/OUTPUT SYSTEM)

The refers to the collection of device drivers used to act.
As a basic interface between the operating system.

TYPE OF ROM

  • PROM (PROGRAMMABLE RAM)
  • EPROM (ERASABLE PROM)
  • EEPROM (ELECRICALLY ERASABLE)

Leave a Comment

Your email address will not be published.