Flashcards
CPU- computer systems
Cards in this deck (15)
- 1What is meant by CPU?Central Processing Unit
- 2What is the purpose of the CPU?The CPU is the component that performs calculations
- 3What is the cycle that processes data?Fetch, decode and execute
- 4What is meant by 'quad core'?It has 4 CPU's
- 5What is meant by '3 MHz'?It carries out 3 billion instructions per second
- 6Name 3 input devices-Mouse
-Keyboard
- Touchscreen - 7Name 3 output devises-Speaker
-Monitor
-Printer - 8What does volatile mean?All information is lost when the computer is turned off
- 9Name a storage deviceHard disk
- 10What is the computer misuse Act?This makes hacking illegal. This will keep private information.eg/ keeping password safe
- 11What is the Data protection Act?Keeping data secure and up to date
- 12What is meant by Copyrights, Designs and Patent Act?This makes it illegal to copy any written publications. ie/ music, computer programs and written work
- 13What does an 'AND' gate do if both inputs are 1? and if both inputs aren't 1?-If both inputs are 1 the output will be 1
- If one input is 1 and the other is 0 the output will be 0 - 14What does an 'OR' gate do if both inputs are 1? and if both inputs aren't 1?- If both inputs are 1 the output will be 1
-If the input is 1 and the other is 0 the output will be 0 - 15What does an 'NOT' gate do if the input is 1? and if the input is not 1?- The output is always opposite to the input
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- Flashcards on CPU- computer systems, created by duggan.r16 on 16/12/2015.
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- duggan.r16
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