computing Flashcards

1
Q

what are the 3 facts about data in RAM

A

it is the users software
all data is lost when the computer is turned off
it cam be read and written

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2
Q

3 facts about data in ROM

A

it is red only memory
it is the computers software
it is not lost when computer is turned off

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3
Q

what is word size

A

word size is the no. of bit fetched by the processor from RAM at any one time

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4
Q

name 3 types of storage

A

flash optical and magnetic

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5
Q

what is computer networking

A

computer network is 2 or more computers connected together by a cable or wireless signals

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6
Q

what are the 3 thingies in CPU

A

ALU. registers. CU

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7
Q

what does the CU do in the CPU

A

controls and supervises the low of data in CPU

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8
Q

what does ALU do in the CPU

A

ALU does all the arithmetic stuff

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9
Q

diagram of computer system

A

input devices➡️cpu➡️output devices
⬇️⬆️
backing storage devices

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10
Q

what is the registers

A

temorary storage

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11
Q

what does the CU do in the CPU

A

controls and supervises the flow of data

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12
Q

name 3 different types of magnetic storage

A

floppy disk
zip disk
hard disk drive

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13
Q

name 3 different types of optical storage

A

cd
dvd
blu ray

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14
Q

name 2 types of flash storage

A

usb

sim card

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15
Q

what is a operating system

A

the operating system is the most important sortware on your computer. it starts as soon as the computer is turned on.

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16
Q

what is cloud computing

A

cloud computing is applications and data backed up over the internet rather then on the computer

17
Q

name 3 computer laws

A

the computer misuse act
the copyright, design and patents act
the data protection act

18
Q

what does the computer misuse act cover

A

the spread of compter viruses
hacking
fraud

19
Q

what does the copyright, design and patents act cover

A

copy and distabut software that hasn’t been payed for

audio and videos that havent been payed for

20
Q

what is a database file

A

a database file is all the information on all the items in the database

21
Q

what is a data base record

A

a database record is all the information on one item

22
Q

what is a database field

A

a database field is one item of information