Memory hierarchy, Basic Computer Science

Memory hierarchy:

There is another type of high speed memory, known as Cache memory, which is used to increase the speed of processing by making current programs and data available to the CPU at a rapid rate. Cache memory is a relatively small, high speed memory that stores the most recent used instructions or data. It acts as a high-speed buffer between main memory and the CPU.The cache memory is placed in between CPU and main memory. Access time is the time it takes a device or program to locate information and make it available to the computer for further processing. Cache memory access time is about 0.5 to 2.5 ns which is much less than that of the main memory. The access time of main memory is about 50-70 ns. Because of its very high cost, the capacity of the cache memory deployed is 2 to 3 percent of that of the main memory. The access time of mass storage devices such as hard disks are measured in milliseconds (ms).   

1611_memory hierarchy.png

Posted Date: 10/22/2012 4:08:08 AM | Location : United States







Related Discussions:- Memory hierarchy, Assignment Help, Ask Question on Memory hierarchy, Get Answer, Expert's Help, Memory hierarchy Discussions

Write discussion on Memory hierarchy
Your posts are moderated
Related Questions
Storage Mechanism of Magnetic disk: Storage Mechanism: Magnetic disk drives contain metal disks that are coated on both sides with an iron oxide recording material. Several

Cryptography, the study of secret writing, has been around for a very long time, from simplistic techniques to sophisticated mathematical techniques. No matter what the form howeve

Question 1 Explain the TCP/IP protocol layers Question 2 Write a note Fiber Distributed Data Interface (FDDI) Question 3 Discuss on File Transfer Protocol (FTP)

Input/Output Services:   Every operating system, large or small, provides input/output services for each device in the system. The operating system includes I/O device driver

what are the definition?

123 is not valid in which base value

what is meant by deliverable in strus base applications

Accessing Folders and Printers Accessing folders, files and printers of another computer is as easy as accessing another computer. To access folders and printers of another c

Question 1 What are the advantages of Computer Interactive Graphics? Question 2 Which are the different types of camera views available in Maya? Question 3 Explain

High level languages: High level languages (converted to machine code by compiler or equivalent) are much easier to program, as well as to understand. Several high level langu