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Definitions
Hardware is a general te rm for the physical components that make up a computer system. E.g- Motherboard, printer.
Software is a general term for the programs that control the computer system. E.g- Windows 7, Powerpoint.
For a computer to be useful, it has to consist of both hardware and software.
Hardware is a general te rm for the physical components that make up a computer system. E.g- Motherboard, printer.
Software is a general term for the programs that control the computer system. E.g- Windows 7, Powerpoint.
For a computer to be useful, it has to consist of both hardware and software.
Central Processing unit:
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Main Memory:
- The CPU needs to store data whilst its carrying out the processing required.
- The data or instructions that are to be processed by the CPU must be placed into main menu.
- Memory can be classed into two types: RAM AND ROM.
RAM
•Random Access Memory.
•A temporary store of data.
•Holds the data that is currently being used by the user.
•Volatile – so data is lost when computer is turned off.
•It can be read from or written to.
•The data in RAM can be changed.
•It is needed so that users are able to make changes to the data they are working on/to store the program or data they are currently using.
•Random Access Memory.
•A temporary store of data.
•Holds the data that is currently being used by the user.
•Volatile – so data is lost when computer is turned off.
•It can be read from or written to.
•The data in RAM can be changed.
•It is needed so that users are able to make changes to the data they are working on/to store the program or data they are currently using.
ROM
•Read Only Memory.
•Non-volatile – not lost when computer is switched off.
• Stores things such as: BIOS, programs in washing machine, program instructions for games.
•The data cannot be changed.
•It is used so that programs/coding/software can be stored permanently/cannot be changed.
•Read Only Memory.
•Non-volatile – not lost when computer is switched off.
• Stores things such as: BIOS, programs in washing machine, program instructions for games.
•The data cannot be changed.
•It is used so that programs/coding/software can be stored permanently/cannot be changed.
True or False?
RAM is not volatile- False
ROM is used to store the BIOS of a computer. True
The data in ROM is easier to change than that in RAM. False
Ram is used to store the data the user is currently working on. True
Storing data that the user is currently working on. RAM
Storing the system BIOS. ROM
Storing program instructions for computer games. ROM
RAM is not volatile- False
ROM is used to store the BIOS of a computer. True
The data in ROM is easier to change than that in RAM. False
Ram is used to store the data the user is currently working on. True
Storing data that the user is currently working on. RAM
Storing the system BIOS. ROM
Storing program instructions for computer games. ROM