Cycle test 1 computing

Question 1

what are the number that you need to know for binary

Answer 1

• 128
• 64
• 32
• 16
• 8
• 4
• 2
• 1

Question 2

what is binary addition

Answer 2

0+0=0
1+0=1
0+1=1
1+1=0 carry the one
1+1+1=1 carry the one

Question 3

what are the data units

Answer 3

• bit
• nibble
• byte
• kilobyte
• gigabyte
• megabyte

Question 4

what are input devices

Answer 4

An input device sends information to a computer system for processing, and an output device reproduces or displays the results of that processing.
* mouse
* key bord

Question 5

what is output devices?

Answer 5

outputs are the signals or data sent from it.
* bral keybord
* head phones

Question 6

what are internal part of computer

Answer 6

• mother bord
• CUP
• ram
• fan
• network card
• power supply
• graphic card
• hard disk

Question 7

what is a network mean

Answer 7

computers working together

Question 8

what is 1byte 4byte 8byte

Answer 8

1000bytes 1000kb 100mb

Question 9

what is a lock network

Answer 9

technology that wireless communications carriers use to prevent the mobile phones they sell from being used on another network

Question 10

what could you use for vires pretion

Answer 10

• fire wall
• cription ( truns evthing into code)