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Chapter 4 Vocabulary List 3
Chapter 4 Vocabulary List 3 Hornet Tech
15
Computer Science
9th Grade
12/09/2014

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Term
Multiplier
Definition

The factor by which the bus speed or frequency is multiplied to get

the CPU clock speed.

Term
x86 processors
Definition
An older processor that first used the number 86 in the model number and processes 32 bits at a time.
Term
x86-64 processors
Definition
Hybrid processors that can process 32 bits or 64 bits.
Term
triple channels
Definition

When the memory controller accesses three DIMMs at the

same time. DDR3 DIMMs support this.

Term
Thread
Definition
Each process that the CPU is aware of; a single task that is part of a longer task or program.
Term
SIMM
Definition
An outdated miniature circuit board used to hold RAM. These held 8, 16, 32, or 64 MB on a single module. These have been replaced by DIMMs.
Term
RIMM
Definition
A type of memory module developed by Rambus, Inc.
Term
RAS Latency
Definition

A method of measuring access timing to memory, which is the number of clock cycles required to write or read a row of data off a memory

module.

Term
memory bank
Definition
The memory a processor addresses at one time. Today’s desktop and notebook processors use one that is 64 bits wide.
Term
single channel
Definition
The memory controller on a motherboard that can access only one DIMM at a time.
Term
single-sided
Definition
A DIMM that has memory chips installed on one side of the module.
Term
SO-DIMM (small outline DIMM)
Definition

A type of memory module used in notebook

computers that uses DIMM technology. A DDR3 version has 204 pins. A DDR2 or DDR version of this has 200 pins. Older, outdated ones can have 72 pins or 144 pins.

Term
MicroDIMM
Definition

A type of memory module used in subnotebook computers that

uses DIMM technology.

Term
Double data rate fourth generation synchronous dynamic random-access memory (DDR4 SDRAM)
Definition
A type of memory technology released to the market in 2014.  It runs at faster speed and lower voltages than DDR3.  It uses a 284-pin DIMM module.
Term
What RAS in RAS latency stands for.
Definition
Row Access Strobe Latency
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