main memory

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Related to primary memory: secondary memory

main memory

[′mān ′mem·rē]
(computer science)

main memory

(storage, architecture)
The storage device used by a computer to hold the currently executing program and its working data. 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. Registers in the CPU are fast, few, expensive and typically change every few machine instructions. Other kinds are cache, PROM, magnetic disk (which may be used for virtual memory) and magnetic tape.

main memory

Main memory is the primary, internal workspace in the computer, commonly known as RAM (random access memory). Specifications such as 4GB, 8GB, 12GB and 16GB almost always refer to the capacity of RAM. In contrast, disk or solid state storage capacities in a computer are typically 128GB or 256GB and higher. In a smartphone or tablet, solid state storage generally starts at 32GB or 64GB. The exception to these rules is the Chromebook, which may have only 16GB of solid state storage (see Chromebook). See memory and storage.
References in periodicals archive ?
This drop in the primary memory performance in the proposed ESFD scheme is only temporary.
Until definitive treatments become available for the primary memory deficits of patients with schizophrenia, bipolar disorder, or major depressive disorder, these interventions can help preserve and even grow the baseline "cognitive capital" of those patients.
Assimilation of psi-based material is highly similar, then, to the activity of retrieving or responding to elements from secondary memory, whereas the consciously effortful process of retaining and reproducing primary memory should act to exclude the extrasensory.
A decrease in performance in the low-education group is seen with age in wave one in attention, language (RC), primary memory and visuospatial functioning.
Most workstations have 8- or 16MB of primary memory.
It has 8 kilobytes of memory, called primary memory cache, built right into the chip.
Husserl's distinction between primary memory (later called "retention") and secondary memory (memory in the full and ordinary sense) are the key to his resolution of these problems.
In addition to AMD's top end R9-M290X 2GB discrete graphics card, and MSI's Eyefinity triple screen output, it also sports a SteelSeries keyboard designed specifically with the extreme gamer in mind, a Killer Gaming Networking card, Audio Boost with AMP and a gold-plated earphone jack for unmatched signal and sound quality, as well as up to 16GB of primary memory.

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