Saturday, July 2, 2011

What is RAM(Random Access Memory)?


RAM is the place in a computer where the operating system, application programs, and data in current use are kept so that they can be quickly reached by the computer's processor. RAM is much faster to read from and write to than the other kinds of storage in a computer, the hard disk, floppy disk, and CD-ROM. However, the data in RAM stays there only as long as your computer is running. When you turn the computer off, RAM loses its data. When you turn your computer on again, your operating system and other files are once again loaded into RAM, usually from your hard disk.
  

TYPES OF RAM 


There are two types of RAM used in Computer-
  • S-RAM
  • D-RAM
    S-RAM-
  • Stands for Static Random Access Memory.

  • SRAM is used in Processor as  a cache memory.
  • SRAM does not have to be periodically refreshed therefore it provides faster access to data.
  • It is more expensive than DRAM. 
    D-RAM

  • Stands for Dynamic Random Access Memory.
  • Used onto Motherboard on Memory Slot.(for eg. DDR1,DDR2 & DDR3 etc)
  • It continuously refreshed to maintain data.