Chapter 4: Personal Computer Components Flashcards

1
Q

Describe data storage capacity

A

Bits, Bytes, Kilobytes, Megabytes, Terabytes

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2
Q

Describe speed of Electronics

A

Hertz, Kilohertz, Megahertz, Gigahertz

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3
Q

RAM/ROM which is volatile/nonvolatile

A

RAM is volatile needs power to maintain data

ROM is nonvolatile does not need power to maintain data

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4
Q

ECC

A

Error Correcting Code- Uses extra bits and algorithms to detect and correct errors

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5
Q

DIMM

A

Dual Inline Memory Module- dual or single sided RAM slot

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6
Q

SRAM

A

Very fast and expensive used for cache memory

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7
Q

DRAM

A

Slower and cheaper than SRAM, has a higher capacity and is the main memory on the computer

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8
Q

VRAM

A

Specialized RAM for video adapters

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9
Q

Riser Card (daughter card)

A

Used to expand a computers bus and allow the insertion of other cards

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10
Q

Riser Card ( AMR/CNR)

A

A small expansion card containing multiple functions

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11
Q

Three categories for mass storage devices

A

Magnetic, optical, and solid state drives

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12
Q

Types of magnetic disk drives

A

Floppy disk drives, Hard disk drives, and tape drives

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13
Q

Types of optical drives

A

CD, DVD, and Blu-ray

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14
Q

Solid State Drives

A

Have no moving parts and use large capacity nonvolatile memory

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15
Q

Hot swapping

A

Connecting or disconnecting drives without shutting down the the system

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16
Q

Types of hot-swappable devices

A

USB, Fire wire, SATA, eSATA,

17
Q

RAID

A

a group of schemes designed to provide either better performance or improved data reliability through redundancy

18
Q

RAID 0 (performance)

A

Striped set without parity gives improved drive read write speeds

19
Q

RAID 1 (Redundancy)

A

Provides fault tolerance because all data is written identically to the two drives in a mirrored set

20
Q

RAID 5

A

Data is written in a striping pattern on three different hard drives and uses an algorithm to rewrite the data if a drive loses data

21
Q

RAID 10 ( performance and redundancy)

A

Uses the mirror and striping methods to save data, requires four hard drives

22
Q

DDR1 SDRAM

A

Double data rate doubled the speed of SDRAM by accessing the module clock twice per clock cycle

23
Q

DDR2 SDRAM

A

Can handle faster clock rates than DDR1

24
Q

DDR3 SDRAM

A

Uses less power while providing twice the bandwidth

25
Q

MCC

A

Memory controller chip- controls the main memory on a motherboard

26
Q

RS-232-C

A

I/O device that transfers data serially ( over long distances) one bit at a time

27
Q

Capture card

A

Type of adapter used to record video signals to a PC’s hard drive