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Computing > Computing Revision > Flashcards

Computing Revision Flashcards

1
Q

What is a byte?

A

8 bits

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2
Q

What is a network ?

A

Computers joined together to communicate and share data

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3
Q

What is Malware?

A

Software typically used to damage a computer

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4
Q

What is the function of CPU?

A

Fetch data, decode the data then execute the order

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5
Q

What is a cache?

A

A small amount of memory in the CPU

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6
Q

Give an environmental impact caused by creating technology.

A

Produce pollution into the environment

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7
Q

What does the Data Protection Act 2018 do?

A

This act secures information of individuals so that others cannot access it

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8
Q

What is the computer misuse act?

A

This law prevents someone stealing data and using it negatively

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9
Q

Why are smartphones bad for children?

A

If a child is being bullied they may be cyber bullied and will have no escape from the bullying

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10
Q

What are cookies?

A

Simple text files that websites use to store data

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11
Q

What is a primary key?

A

A unique identifier for each record

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12
Q

What is a record?

A

A data structure that allows multiple data items to be stored in different fields.

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13
Q

What does >= mean in SQL?

A

Greater than or equal to

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14
Q

What is the of “AND”

A

TRUE if both conditions are TRUE

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15
Q

Where is a TCP used

A

Transport layer

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16
Q

What is a SMTP

A

Simple Mall Transfer Protocol

17
Q

What does the Transport layer do

A

Setting up communications between 2 devices.

Splitting data into packets and checking packets are sent to the right place

18
Q

What does the network layer do

A

Adds IP address to data packets then directs them between devices using routers

19
Q

What does the data layer do

A

Where the hardware and drivers operate. Passes data over the physical network

20
Q

What does the application layer do

A

Where software operates

Computing (4 decks)

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