Glossary

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Glossaries

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Term Definition
Megabit
Amount of memory equal to 1,048,576 bits of information. (Abbreviated Mb.)
Megabyte
Amount of memory equal to 1,048,576 bytes of information. (Abbreviated MB.)
Megahertz
A measurement of clock cycles in millions of cycles per second.
Memory Configuration
The amount of memory in an IC and how it is accessed.
Memory Controller
The logic chip used to handle the I/O (input/output) of data going to and from memory. See Chipset.
Memory Cycle Time
Minimum amount of time required for a memory to complete a cycle such as read, write, read/write, or read/modify/write.
Memory Types
Cache: static random access memory containing recently used information DRAM: dynamic random access memory. SDRAM: single data rate synchronous dynamic random access memory. DDR SDRAM: double data rate synchronous dynamic random access memory. Usually referred to as DDR. SLDRAM: synchronous link dynamic random access memory. RDRAM: Rambus dynamic random access memory. RAM: random access memory. ROM: read only memory (permanent memory that cannot be changed). SRAM: static random access memory.
MHz
See Megahertz
Micron
1. A unit of measure equivalent to one-millionth of a meter; synonymous with micrometer. 2. Also the company name of one of the largest memory producers in the world and the parent company of Crucial Technology.
Mini DIMM
Smallest outline dual inline memory modules.
MIPS
Millions of instructions per second. This measurement is generally used when describing the speed of computer systems.
MLC
Multi Layer Cell: Lower endurance limit than SLC.
mm
A micron (or micrometer). A unit of length equal to one millionth of a meter.
Motherboard
The main printed circuit board in a computer that carries the system buses. It is equipped with sockets to which all processors, memory modules, plug-in cards, daughterboards, or peripheral devices are connected.
ms
A microsecond: One millionth of a second.