MS OFFICE 2013

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Fundamental III

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permits reader to recognize human recognizable characters printed in special magnetisable ink capable of processing with related machines. BAR CODE Bar codes are thick and thin black strips to represent numbers and character. These are prices form of encoding the detailed information. Bar code scanner or reader are used the bar coded information. It is useful in inventory control. It is also used as information/ price tag of books and various products in departmental stores.   Video input Photograph and full motion films can be captured through electronics cameras or VCRs and fed to computer through add on cards that can be plugged into an expansion slot of personal computer. How it works? - Video signals are received from output of electronics camera or VCR . Personal computer equipped with add on card such as frame grabber, Video, blaster etc. Converts graphic image and full motion video signals into digital files through Analog to Digital Convertor ( ADC ) and ot...
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FUNDAMENTAL PART II

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On line auxiliary storage device When the storage device is online with the processor it is said to be on line storage device e.g. Hard Disk. Off line auxiliary storage device             Storage device not directly on line with the processor are know as off line storage device e.g. Floppy diskette, Magnetic Tape etc. Auxiliary memory stores information and data which may be transferred to and from the main memory while processing and when needed as per programmed. It is virtually higher in capacity and less expensive than main memory, but retrieving time is more than main memory. Arithmetic Logic Unit (ALU)             Ii derives data from main memory, performs arithmetic and logic operations, and places intermediate results in worming storage area of main memory further, results are fed to output storage of main memory for further feeding the data/information to ...
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