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Topic: Main memory

Related Topics

Core memory

Delay line memory

Analog computer

MIT Whirlwind

ENIAC

International Business Machines

Real time

RAND Corporation

RCA

1945

Paul Rand

	Memory
		A basic and generally accepted classification of memory is based on the duration of memory retention, and identifies three distinct types of memory: sensory memory, short-term memory, and long-term memory.
		Declarative memory can be further sub-divided into semantic memory, which concerns facts taken independent of context; and episodic memory, which concerns information specific to a particular context, such as a time and place.
		Autobiographical memory - memory for particular events within one's own life - is generally viewed as either equivalent to, or a subset of, episodic memory.
	www.nebulasearch.com /encyclopedia/article/Memory.html (1204 words)

	Virtual memory - Wikipedia, the free encyclopedia
		To properly implement virtual memory the CPU (or a device attatched to it) must provide a way for the operating system to map virtual memory to physical memory and for it to detect when an address is required that does not currently relate to main memory so that the needed data can be swapped in.
		The decision of when to use cache and when to use main memory is generally dealt with by hardware so generally both are regarded together by the programmer as simply physical memory.
		The modern solution is to use virtual memory, in which a combination of special hardware and operating system software makes use of both kinds of memory to make it look as if the computer has a much larger main memory than it actually does and to lay that space out differently at will.
	en.wikipedia.org /wiki/Virtual_memory (2847 words)

	main memory Computer Encyclopedia Enterprise Resource Directory Complete Guide to Internet (Site not responding. Last check: 2007-11-06)
		A modern computer's main memory is built from {random access memory} {integrated circuits}.
		In the old days {ferrite core memory} was one popular form of main memory, leading to the use of the term "{core}" for main memory.
		Computers have several other sorts of memory, distinguished by their access time, storage capicity, cost, and the typical lifetime or rate of change of the data they hold.
	jaysir.com /computer-encyclopedia/m/main-memory-computer-terms.htm (136 words)

	Main Page - Memory Alpha
		From Memory Alpha, the free Star Trek reference.
		Memory Alpha is a collaborative project to create the most definitive, accurate, and accessible encyclopedia and reference for everything related to Star Trek.
		The database is organized in a WikiWiki structure, which allows an incredible level of interconnectedness and expansion.
	memory-alpha.org /en/wiki/Main_Page (588 words)

	Main Memory Encyclopedia Article, Definition, History, Biography (Site not responding. Last check: 2007-11-06)
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	www.stardustmemories.com /encyclopedia/Main_memory (418 words)

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