with Answers
What does CPU stand for? - Ans -Central processing unit
What does RAM stand for? - Ans -Random access memory
What was the name of the first computer invented? - Ans -Colossus
When was Colossus invented? - Ans -During the second world war
Why was Colossus invented? - Ans -To decipher (decode) German messages
What is the definition of a computer? - Ans -An electrical device that can receive,
store, process and present data
What is 12 in binary? - Ans -1100
What is 6 in binary? - Ans -110
What is 9 in binary? - Ans -1001
What is 11 in binary? - Ans -1011
What is 1000 in decimal? - Ans -8
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, What is 1111 in decimal? - Ans -15
What are computer chips made up of? - Ans -Transistors
Why are transistors like switches? - Ans -Because they are either on or off
What does Moore's law state? - Ans -That every two years the same computer could
be half its original size (or the same size but twice as powerful)
Can you name the six basic core components of a computer? - Ans -CPU, RAM,
graphics card, motherboard, power supply unit, hard drive
What does PSU stand for? - Ans -Power supply unit
What are the non-core components of a computer called? - Ans -The peripherals
Give some examples of non-core computer components? - Ans -Keyboard, mouse,
monitor
Give an example of some input devices - Ans -Microphone, keyboard, mouse,
webcam
What do input devices do? - Ans -They receive data (have data input into them)
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What do output devices do? - Ans -They present data
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