previously: A SPREADSHEET HAS THE FOLLOWING ENTRIES. PROVIDE A FORMULA FOR CELL C5 THAT CAN BE COPIED ONTO CELL D5 AND THE RANGE C6...D10 TO GIVE A UNIFORM INCREASE OF 10% OF THE PREVIOUS YEARS VALUE FOR EACH ITEM.
This is the ability for a computer to accept data either through input devices such as scanners, keyboards, mice and others or through information retrieved from storage devices.
Input of data is a main function because all other functions depend on the incoming data for processing and output.
Processing and storage are sometimes broken down as separate basic functions of a computer. However, looking at this critical idea keenly, we notice that processing and storage are sometimes inseparable this is because processing devices rely heavily on storage devices vis a vis.
Processing is an act where a computer converts raw meaningless piece of information called data into a more meaningful piece of information.
This is normally done with a closer help of primary storage devices such as the RAM, and special types of memories such as the registers, buffers and cache memory.
Processing is a main function of a computer because of the conversion, manipulation of numeric data and logical decisions.
This is an act for a computer to display the result of a processing activity. This can be done using output devices such as the monitor, printer, plotter, speakers etc.
The functions of a computer system cannot be complete without the output, simply because it gives a feedback of the result for the computer user to digest, change, amend, store or print.
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