Hardware and Software (AQA GCSE Computer Science): Flashcards
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13 cards from this deck
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Practise the cards
13 cards from this deck
What is hardware?
What is hardware?
Physical parts of a computer you can touch
What is software?
What is software?
Programs and instructions that run on a computer
What does the CPU do?
What does the CPU do?
Processes information (the 'brain' of the computer)
Input device examples
Input device examples
Keyboard, mouse, touchscreen
Output device examples
Output device examples
Monitor, speakers, printer
What does an operating system do?
What does an operating system do?
Controls everything (main program of the computer)
Hardware vs software: who gives orders?
Hardware vs software: who gives orders?
Software gives orders, hardware follows them
Who was George Boole?
Who was George Boole?
English mathematician who invented Boolean logic (1815-1864)
Boolean data type values
Boolean data type values
True/False, 1/0, ON/OFF
What are transistors?
What are transistors?
Electronic switches in computers (ON or OFF states)
Why do computers use binary?
Why do computers use binary?
They only understand two digits: 1 and 0
Transistor ON state represents
Transistor ON state represents
1 or True
Transistor OFF state represents
Transistor OFF state represents
0 or False