what is a computer memory?

Question

what is a computer memory?

Answer 1

There are different kinds. What kind do you wanna know about.

Answer 2

A computer memory refers to that part of a computer where various data arising from the working of computer and human computer interaction is stored permanently or temporarily. Broadly speaking there are two types of computer memories: RAM and ROM. RAM stands for Random Access Memory which is a volatile sort of memory stored in semiconductor chips and available as long as the system is on. Once system is off, the data of that particular session stored in RAM will be lost. ROM (Read Only Memory) on the other hand is nonvolatile form of memory stored primarily in Hard disks. Data once saved to ROM will be theoretically availabe forever untill unless the disk is physically/electronically damaged/wiped out.

Because RAM is stored in semiconductor chips, this form of memory is much-much faster than the ROM which is primarily written on magnetic disks, but at the same time RAM can not be used to install operating system or any other programmes or to save any file, music or video. RAM is used as temporary memory for loading the operating system, applications or other files which are used in a particular session. ROM serves as a permanent storage for installing operating system, programmes, applications and to save various files. The finetuning of both types of memory with the right processor is necessary to optimize your computing experience.

Answer 3

The terms "storage" and "memory" refer to the parts of a digital computer that retain physical state (data) for some interval of time, possibly even after electrical power to the computer is turned off. Where both terms are in use, "memory" is generally used for the faster forms, and "storage" for the slower forms.

Answer 4

Computer memory is where the computer Operating Systems temporarily stores the data for execution.

It is called as RAM (random Access memory)

Answer 5

Computer storage, computer memory, and often casually memory refer to computer components, devices and recording media that retain data for some interval of time. Computer storage provides one of the core functions of the modern computer, that of information retention. It is one of the fundamental components of all modern computers, and coupled with a central processing unit (CPU), implements the basic Von Neumann computer model used since the 1940s.



In contemporary usage, memory usually refers to a form of solid state storage known as random access memory (RAM) and sometimes other forms of fast but temporary storage. Similarly, storage more commonly refers to mass storage - optical discs, forms of magnetic storage like hard disks, and other types of storage which are slower than RAM, but of a more permanent nature. These contemporary distinctions are helpful, because they are also fundamental to the architecture of computers in general. As well, they reflect an important and significant technical difference between memory and mass storage devices, which has been blurred by the historical usage of the terms "main storage" (and sometimes "primary storage") for random access memory, and "secondary storage" for mass storage devices. This is explained in the following sections, in which the traditional "storage" terms are used as sub-headings for convenience.

Answer 6

A computer has different kind of memories: The RAM (Random Acces Memory) memory and the virtual memory mainly. Ram means the memory it uses to excecute calculations, run secquences and the like, while virtual memory is the "space" it has to open programs and keep them running. So in other words, RAM memory refers to how fast a program can open and run and virtual memory refers to how many programs you can open at the same time.

Answer 7

computer memory is devided into two categories

one is primary storage devices like ram rom

second is secondary storage devices like hard disk

Answer 8

were all the info is stored on your computer

Answer 9

info stored onto the disk

Answer 10

Remembering where you left your laptop.

Answer 11

there r so many to which u want to know.

Answer 12

memory Last modified: Friday, January 04, 2002









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Internal storage areas in the computer. The term memory identifies data storage that comes in the form of chips, and the word storage is used for memory that exists on tapes or disks. Moreover, the term memory is usually used as a shorthand for physical memory, which refers to the actual chips capable of holding data. Some computers also use virtual memory, which expands physical memory onto a hard disk.

Every computer comes with a certain amount of physical memory, usually referred to as main memory or RAM. You can think of main memory as an array of boxes, each of which can hold a single byte of information. A computer that has 1 megabyte of memory, therefore, can hold about 1 million bytes (or characters) of information.



There are several different types of memory:



RAM (random-access memory): This is the same as main memory. When used by itself, the term RAM refers to read and write memory; that is, you can both write data into RAM and read data from RAM. This is in contrast to ROM, which permits you only to read data. Most RAM is volatile, which means that it requires a steady flow of electricity to maintain its contents. As soon as the power is turned off, whatever data was in RAM is lost.

ROM (read-only memory): Computers almost always contain a small amount of read-only memory that holds instructions for starting up the computer. Unlike RAM, ROM cannot be written to.

PROM (programmable read-only memory): A PROM is a memory chip on which you can store a program. But once the PROM has been used, you cannot wipe it clean and use it to store something else. Like ROMs, PROMs are non-volatile.

EPROM (erasable programmable read-only memory): An EPROM is a special type of PROM that can be erased by exposing it to ultraviolet light.

EEPROM (electrically erasable programmable read-only memory): An EEPROM is a special type of PROM that can be erased by exposing it to an electrical charge.











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For internet.com pages about memory . Also check out the following links!









Memory Errors, Detection and Correction

Describes the facilities available for doing error detection and correction and discusses what some of the important factors are. This page is from "The PC Guide."





PC Mechanic - online guide to computer hardware

Contains overviews, purchasing and installation information for PC motherboards, memory, drives, expansion cards, and power supplies. Also contains links to companies and manufacturers and PC hardware related links.





System Memory Overviews

Describes memory technology types, memory speed, access and timing, DRAM technologies, memory size and packaging, errors, detection and correction, and logical memory layout. This page is from "The PC Guide".





Logical Memory Layout

Describes how memory is allocated and how it is used within the PC. This page is from "The PC Guide".





Memory manual

Provide general information about memory modules and how to identify them. It offers definitions, acronyms, types of DRAM and module packages, information on 2-, 3- and 4-chips, and identifying modules.





Memory Packaging

Describes the types of memory packaging available and the issues involved in selecting and using memory packages and DRAM chips in a PC. This page is from "The PC Guide."





Memory Speed, Access and Timing

Describes how the system memory works. Includes details on how memory is accessed and important issues related to system timing. This page is from "The PC Guide".





Memory Technology Types

Describes the main types of memory used in PCs (ROM, RAM, SRAM, and DRAM) and how they differ from each other. This page is from "The PC Guide".





PC Guide's system memory reference

Extensive reference covering the system memory. Covers technology types, memory speed and timing, packaging, error detection and correction, and the logical memory layout.





PC memory management

Phoenix Technologies, designer of the PhoenixCard Manager Plus, describes the evolution of PC memory management with a description of how this product works within the DOS Protected Mode Services (DPMS).





Troubleshooting the System Memory

Describes memory-related problems, referring specifically to the main system memory. This page is from "The PC Guide."





WebCrawler

The WebCrawler search engine allows you to search the Web by keyword or by subject category.





Yahoo!'s memory retailers page

Yahoo!'s directory of memory retailers.







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Memory









absolute address

address



chip



C-RIMM



EEPROM



EPROM



main memory



MDRAM



memory leak



NVRAM



PROM



RAM



RDRAM



RIMM



ROM



secondary memory



solid state disk



virtual memory



VRAM











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