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PC Hardware/Software Ch.1
Vocabulary
27
Computer Science
9th Grade
02/15/2007

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Term
Central Proessing Unit (CPU)
Definition
Brain of the computer. Place where every thing gets done
Term
Expansion slots
Definition
Enables you to expand your cxapabilites by adding componets.
Term
Input/Output (I/O)
Definition
Its what periferal devices perform
Term
Input/Output (I/O)
Definition
Its what periferal devices perform
Term
Mainframe
Definition
Large computers that filled up entire rooms
Term
Modem
Definition
Type of phone line
Term
Motherboard/Tower
Definition
Cirket board that covers most of the bottom of the system units
Term
clock chip
Definition
A crystal that tells the speed
Term
clock chip
Definition
a crystal that provides the system speed.
Term
cubic feet per minute (CFM)
Definition
a rating system that rates how fast a fan can move
Term
Decibels (dBA)
Definition
the measument of the fan noise.
Term
Decibels (dBA)
Definition
the measument of the fan noise.
Term
Decibels (dBA)
Definition
the measument of the fan noise.
Term
Front side bus
Definition
a object that connects the CPU and the northridge
Term
gigahertz (GHz)
Definition
one billion cycles per second
Term
Front side bus
Definition
a object that connects the CPU and the northridge
Term
Asynchronous
Definition
Did not have a clock chip
Term
Bank
Definition
# of SIMM sticks that must go into a group
Term
DDR SDRAM
Definition
Shows up only in high end systems
Term
DIMM
Definition
Provides system memory
Term
Nanosecond
Definition
a billonth of a second
Term
RDRAM
Definition
very high speed type of clocked ramthat rns 400-533 mhz axcessing ram 4 times per clock cycle
Term
SIMM
Definition
implemations of fpm and edo technologys
Term
sticks
Definition
small circut boards usualy about 4" long
Term
swap file
Definition
special pert of herd rive that stores the programs
Term
SDRAM
Definition
a ram that encorprated the clock chip
Term
virtual memory
Definition
the process in witch the ram swaps out less used programs for the most used programes in the hard drive
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