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- Computer_memory abstract "In computing, memory refers to the physical devices used to store programs (sequences of instructions) or data (e.g. program state information) on a temporary or permanent basis for use in a computer or other digital electronic device. The term primary memory is used for the information in physical systems which function at high-speed (i.e. RAM), as a distinction from secondary memory, which are physical devices for program and data storage which are slow to access but offer higher memory capacity. Primary memory stored on secondary memory is called "virtual memory". An archaic synonym for memory is store.The term "memory", meaning primary memory is often associated with addressable semiconductor memory, i.e. integrated circuits consisting of silicon-based transistors, used for example as primary memory but also other purposes in computers and other digital electronic devices. There are two main types of semiconductor memory: volatile and non-volatile. Examples of non-volatile memory are flash memory (sometimes used as secondary, sometimes primary computer memory) and ROM/PROM/EPROM/EEPROM memory (used for firmware such as boot programs). Examples of volatile memory are primary memory (typically dynamic RAM, DRAM), and fast CPU cache memory (typically static RAM, SRAM, which is fast but energy-consuming and offer lower memory capacity per area unit than DRAM). Most semiconductor memory is organized into memory cells or bistable flip-flops, each storing one bit (0 or 1). Flash memory organization includes both one bit per memory cell and multiple bits per cell (called MLC, Multiple Level Cell). The memory cells are grouped into words of fixed word length, for example 1, 2, 4, 8, 16, 32, 64 or 128 bit. Each word can be accessed by a binary address of N bit, making it possible to store 2 raised by N words in the memory. This implies that processor registers normally are not considered as memory, since they only store one word and do not include an addressing mechanism.The term storage is often used to describe secondary memory such as tape, magnetic disks and optical discs (CD-ROM and DVD-ROM).".
- Computer_memory thumbnail ENIAC_Penn2.jpg?width=300.
- Computer_memory wikiPageExternalLink computer-memory.htm.
- Computer_memory wikiPageID "6806".
- Computer_memory wikiPageRevisionID "603383649".
- Computer_memory hasPhotoCollection Computer_memory.
- Computer_memory subject Category:Computer_memory.
- Computer_memory subject Category:Computer_storage.
- Computer_memory comment "In computing, memory refers to the physical devices used to store programs (sequences of instructions) or data (e.g. program state information) on a temporary or permanent basis for use in a computer or other digital electronic device. The term primary memory is used for the information in physical systems which function at high-speed (i.e.".
- Computer_memory label "Computer memory".
- Computer_memory label "Memoria (informatica)".
- Computer_memory label "ذاكرة حاسوب".
- Computer_memory label "電腦記憶體".
- Computer_memory sameAs Počítačová_paměť.
- Computer_memory sameAs Memori_(komputer).
- Computer_memory sameAs Memoria_(informatica).
- Computer_memory sameAs m.05c60gb.
- Computer_memory sameAs Q5830907.
- Computer_memory sameAs Q5830907.
- Computer_memory wasDerivedFrom Computer_memory?oldid=603383649.
- Computer_memory depiction ENIAC_Penn2.jpg.
- Computer_memory isPrimaryTopicOf Computer_memory.
