Unit02: Computer Architecture

Question 1

CD-ROM

Answer 1

Compact Disk Read-Only Memory

Question 2

TFT

Answer 2

thin film transistor

Question 3

MB

Answer 3

Megabyte

Question 4

GHz

Answer 4

Gigahertz

Question 5

FSB

Answer 5

front-side bus

Question 6

SDRAM

Answer 6

Synchronous Dynamic Random Access Memory

Question 7

XGA

Answer 7

External Graphics Array

Question 8

SVGA

Answer 8

Super Video Graphics Array

Question 9

AGP

Answer 9

Advanced Graphics Port

Question 10

What is memory size of computer ?

Answer 10

RAM

Question 11

mouse ?

Answer 11

control the cursor

Question 12

clock

Answer 12

controls the timing of signals in the computer

Question 13

RAM

Answer 13

holds data read or written to it by the processor

Question 14

ROM

Answer 14

holds intructions which are needed to start up the computer

Question 15

cache

Answer 15

provides extrememly fast access for sections of a program and its data

Question 16

flash memory key

Answer 16

read and writes electronic chips on a card

Question 17

main causes of a PC not running at its highest

Answer 17

the time it takes to move data in and out of memory

Question 18

word instead of ‘buffer’

Answer 18

cache

Question 19

what devices look after cache coherency

Answer 19

cache controller

Question 20

alternative to ‘write-through cache’ ?

Answer 20

‘write-back’ cache

Question 21

when ‘write-back’ cache write its content back to main memory

Answer 21

‘dirty’…

before using the space to cache new data.

Question 22

When data is marked as ‘dirty’ in ‘write-back’ cache ?

Answer 22

Cache entries that have changed are flagged as ‘dirty’ (When data in the cache is changed)

Question 23

What determines what data is replaced in a disk cache ?

Answer 23

An algorithm

Question 24

cache hit

Answer 24

the processor is succesful in finding the data in cache

Question 25

cache controller

Answer 25

the logic circuits used to control the cache process

Question 26

cache coherency

Answer 26

ensuring that any changes wrtten to main memory are reflected within the cache and vice versa.

Question 27

wirte-thorugh cache

Answer 27

the process of writing directly to both the cache and main memory at the same time.

Question 28

write-back cache

Answer 28

the process of writing changes only to the cache and not to main memory unless the cache is used to cache new data.

Question 29

Line size

Answer 29

the amount of data transfered to the cache at any one time

Question 30

write-back cache require more inteligent cache controller (TRUE/FALSE)

Answer 30

TRUE