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Q. What do you mean by Video Memory ?
As declared before video memory is also entitled framebuffer since it buffers video frames to be displayed. The quality of a video display relies a lot on how quickly can the framebuffer be accessed and be updated by video system. In early video systems video memory was just a fixed area of system RAM. Afterwards there was video RAM that came with video cards themselves and could be increased by putting additional video RAM under UMA (Unified Memory Architecture). Video RAM is again part of system RAM. UMA is what you get in modern low-cost motherboards with on-board video and sound cards etc.
Amount of video memory necessary is dependent on resolution and colour-depth required of the system. Let's see how to calculate amount of video memory required. The video memory required is simply the resolution (which means the total number of pixels) multiplied by Colour Depth.
Question: (a) Comment on the general structure of the IAS Computer, illustrate your answer using a diagram. (b) (i) Define CPU time. (a) (ii) A program runs in 10
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1.0 By working throughthe first time guide this will gain familiarity with the on board monitor and the PC cross assembler After connecting the system to the terminal program,
Q. How to copy files from a drive and directory? You can copy files from a drive and directory other that the currently selected one. However in that case, you need to speci
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define multipoint communication
Problem: (i) What are the main threats that an organisation holding sensitive data, such as Public Data, on computer storage must guard against? (ii) To protect such data,
Define Operation code. The Operation code of an instruction is a group of bits that explain such operations as add, sub, ,shift, mul and complement.
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