Flow of data:
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Input → Process → Output
From the output we get feedback which influences the input of the next process.
Data NEVER flows around a system because once processed it is INFORMATION.
DEFINITIONS:
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DATA: Raw facts and figuers with no meaning to the user
INFORMATION: Processed data into a fomat that can be understood by the user
Process: The convertion of data being manipulated into information
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A standalone pc is any pc that i snot connected to any form of network. They can only access data stored on a pc. Technially the internet is a form of netwroking pc's. A literal definiton is:
A pc NOT connected to anything , you may say that all pc's connected to the internet are in a network
2006-12-15 07:52:41
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answer #2
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answered by Chεεrs [uk] 7
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To what level of detail? The PC itself will need to be described, probably in terms of the processor, buses, memory etc. Data flow will need to describe the system bus (data bus, control bus and address bus). You probably need some detail on buses - the unidirectional flow of addresses from CPU to main memory or peripheral devices via the address bus, the bidirectional flow of control data on the control bus (Ack, interrupt requests, Read/write requests etc.) and the bidirectional flow of data on the data bus (data being data itself and instructions). How much detail do you need? Do you need a description of registers? (Program counter, current instruction register, memory address register, status register, interrupt register, accumulator, memory data register - have I forgotten any major ones?)
2006-12-15 07:58:57
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answer #3
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answered by Older&Wiser 5
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