Flashcards
Computer Science - Hardware
Cards in this deck (13)
- 1HARDWAREHardware is the term that describes the physical components
- 2WHAT IS THE CPUCPU means central processing unit => it is the part of a computer system that is responsible for executing a sequence of stored instructions called a program.
- 3FOR THE CPU TO WORK?There are two things:
1) The main memory => RAM (Random Acess Memory).
2) Cache Memory - 4WHAT IS RAM?RAM is Random Access Memory => It is the main memory of a computer that stores data, applications, and the operating system whilst in use. When the computer is turned off the RAM loses its data.
- 5WHAT IS CACHE MEMORY?Special high-speed memory used by a computer.
- 6WHAT IS ROM?ROM stands for Read only memory => It is a store for data in a computer that cannot be overwritten. Data in ROM is always available and is not lost when the computer is turned off.
- 7WHAT IS VIRTUAL MEMORY?Virtual memory is a section of the hard disk that is used as if it were RAM to supplement the amount of main memory available to the computers.
- 8LOGIC GATEA circuit that produces an output based on the inputs.
- 9NOT GATEThe NOT gate - if 0 is input then it outputs 1 and if I input 1 then it outputs 0.
- 10AND GATEThe AND gate tells us if the inputs are 1, by outputting 1, otherwise it outputs 0.
- 11OR GATEThe OR gate tells us if one or both of the two inputs are 1 by outputting 1, otherwise it outputs 0.
- 12TRUTH TABLEA Truth Table is a method for recording all the possible input combinations and determining the output for each.
- 13INPUT DEVICESA hardware device used to input data into a computer system for processing.ALGORITHM
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- Flashcards on Computer Science - Hardware, created by Paloma Gohil on 12/12/2016.
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- Paloma Gohil
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