systems Flashcards

1
Q

what is the number of the binary 10010110

A

150

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2
Q

how many bits are in a byte

A

8

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3
Q

how many kilobytes are in a megabyte

A

1024

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4
Q

how many bits is ASCII

A

8

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5
Q

can vector graphics be rescaled without loss of quality

A

yes

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6
Q

does the blank space in the file take up space for a vector graphics

A

no

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7
Q

what are the three parts of a processor

A

Arithmetic and logic unit, Control unit and Registers

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8
Q

what is the speed of a processor measured in

A

Gigahertz

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9
Q

what is the function of a data bus

A

enable data to be transferred between processor and main memory

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10
Q

what is the function of the address bus

A

holds the address of the memory location

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11
Q

what is the only thing computers understand

A

binary numbers

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12
Q

the instructions made of binary are

A

machine code

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13
Q

what type of language is code written in

A

high level language

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14
Q

one way to reduce carbon footprint

A

buying green computers and peripherals, switching off computers/ monitors and setting computers / computer components to energy saving mode

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15
Q

why do you use a firewall

A

protect a computer network form intruders

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16
Q

how does a firewall protect your computer

A

it controls what data can pass through the firewall

17
Q

what does encryption involve

A

scrambling a message and putting it into code

18
Q

the more bits set aside for the mantissa what will the number be

A

more precise

19
Q
A