Term
| What are some reasons for using computers? |
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Definition
-it works faster than humans
-it is never tired or needs rest
-it stores large amounts of information in small spaces |
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Term
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Definition
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Term
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Definition
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Term
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Definition
1024 bytes - 2 to the power
of 10 |
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Term
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Definition
| A set of instructions given by human |
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Term
| What is aplication Software? |
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Definition
| Carries out a particular task |
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Term
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Definition
| Any part of a computer you can actually touch |
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Term
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Definition
| An individual piece of hardware |
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Term
| What does basic hardware conist of? |
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Definition
| Central processing unit(CPU) with input, output and backing storage devices |
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Term
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Definition
| The stage of computing where the main concern is getting the data needed by the program into the computer |
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Term
| Some examples of input deivces |
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Definition
| Mouse, Keyboard, scanner,touch screen, OMR, OCR, digital camera |
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Term
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Definition
| When the computer produces the processed data as info in a form that is useful to the user, |
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Term
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Definition
| When the computer produces the processed data as info in a form that is useful to the user, |
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Term
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Definition
| Screen, monitor, printer, sound output,graph plotter |
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Term
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Definition
| When the computer follows the instructions using the data which has just been input. |
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Term
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Definition
| Any collection of numbers, characters or symbols that has been coded into a format that can be input in the computer and processed. |
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Term
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Definition
| Data which has been processed by the computer i takes on a context. |
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Term
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Definition
| The Central Processing Unit is the 'brain' of the computer. It's where the data is sorted and the decision making happens. |
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Term
| What does the CPU contain? |
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Definition
| Main Memory, ALU, Control Unit |
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Term
| What does the main memory do? |
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Definition
| Holds the program instructions and data. |
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Term
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Definition
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Term
| What does the Control Unit do? |
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Definition
| Fetches instructions from the main memor, it decodes them and lets them go through the ALU |
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Term
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Definition
| Performs claculations and makes decisions using the instructions. |
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Term
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Definition
| Performs claculations and makes decisions using the instructions. |
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Term
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Definition
| Used to store programs when the computer is switched off. |
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Term
| What are some examples of backing storage? |
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Definition
| Floppy disk drives, magnetic tape drives, hard disks, Cd's |
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Term
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Definition
| Random Acess Memory, it temporarly stores programs and data. The contents can be lost when the computer is turned off. |
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Term
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Definition
| Rom is short for Read Only Memory. Rom is permanent memory and won't be lost in a power cut so it in non- volatile memory. The amount of ROM in most computers is small. |
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Term
| What are two differnt types of memory? |
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Definition
| Volatile (not permanent) and Non- volatile (permanent) |
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