definitions
* hardware is a general term for the physical components that make up a computer system
1 . printer
2. MONITOR
3. keyboard
* software is a general term for the programs that control the computer system,
1. Microsoft office
2. Microsoft word
3. Microsoft power point
* for a computer system to be useful it has to consist of both hardware and software
computer system
central processing unit * The CPU is the brain of the brain of the computer. * The device that carries out software instructions. * CPUs usually plug into a large socket on the main circuit board (the motherboard) of a computer. *They get very hot when they are operating so usually have a large fan attached to their top to keep them cool. |
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 memory.
memory can be classed into two types:
RAM and ROM
* 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 memory.
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. |
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)
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)
which following users are more suitable for ROM or RAM.
* storing data that the user is currently working on (RAM)
* storing the system BIOS (ROM)
* storing program instructions for computer games (ROM)
* storing data that the user is currently working on (RAM)
* storing the system BIOS (ROM)
* storing program instructions for computer games (ROM)