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Working memory in computer


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information about working memory in computer

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Working memory in computer

  1. 1. Working Memory in computer  Contents: • What is Memory? • Types of Memories • What is Working memory? • Role of Ram in Computation • Swapping Technique
  2. 2. Memory • In computing, memory refers to the computer hardware devices used to store information for immediate use in a computer. • There are two types of memories: Short-term memory Long-term memory
  3. 3. Memory types • SHORT-TERM MEMORY: This short-term memory disappears when the computer is turned off . • Ex :RAM:- RAM is your system's short-term memory. Whenever your computer performs calculations, it temporarily stores the data in the RAM until it is needed.
  4. 4. Memory types • LONG-TERM MEMORY: This long-term memory doesn’t disappears when the computer is turned off. • It is a system for permanently storing, managing, and retrieving information for later use. • Ex: HARDDRIVE,CD
  5. 5. TYPES OF COMPUTER MEMORIES Short-term memory Long-term memory
  6. 6. Working memory • Working memory: • Random access memory (RAM) is used as the working memory of a computer system. It stores input data, intermediate results, programs, and other information temporarily. It can be read and/or written. It is usually volatile, that is all data will be lost when the power is turned off.
  7. 7. RAM • RAM stands for Random Access Memory • RAM is your system's short-term memory. Whenever your computer performs calculations, it temporarily stores the data in the RAM until it is needed. • RAM is volatile memory. • A random-access memory device allows data items to be accessed (read or written) in almost the same amount of time irrespective of the physical location of data inside the memory.
  8. 8. RAM ROLE IN COMPUTER PERFORMANCE • RAM is measured in megabytes (MB) or gigabytes (GB). The more RAM you have, the more things your computer can do at the same time. If you don't have enough RAM, you may notice that your computer is sluggish when you have several programs open. Because of this, many people add extra RAM to their computers to improve performance. MORE RAM
  10. 10. Swapping Technique • Swapping is a useful technique that enables a computer to execute programs and manipulate data files larger than main memory(RAM). • The operating system copies as much data as possible into main memory, and leaves the rest on the disk • When the operating system needs data from the disk, it exchanges a portion of data (called a page or segment) in main memory with a portion of data on the disk. • This is also known as paging.
  11. 11. Swapping Technique explanation Working memory(RAM) Operating system Other programs User Data Swapping space Hard disk
  12. 12. Operating system (Swapping space)
  13. 13. Operating system IF Working Memory is low then swapping space is used
  14. 14. Conclusion • Swapping Technique is used in most of the operating systems, including OS/2, Windows, and UNIX, do. • So, the effective utilization of working memory makes the computer work faster.
  15. 15. Any queries?
  16. 16. THANK YOU by E. Sai shiva hari prasad