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Q. What do you understand by Scan Codes?
A scan code is a code produced by a microprocessor in keyboard when a key is pressed and is unique to key struck. When this code is received by computer it reports an interrupt and looks up scan code table in BIOS and realize which keys have been pressed and in what combination. Special memory locations known as status bytes tell the status of locking and toggle keys for example Caps lock etc. Every key press produces two different scan codes - one on key-push down known as Make code and another on its popping back known as Break code. This two-key scheme enables the computer to tell when a key is held pressed down for example ALT key when pressing another key say CTRL-ALT-DEL.
Why is TCP called end-to-end protocol? TCP is termed as an end-to-end protocol as this provides a connection directly by an application in one computer to an application on a r
Describe carry look-ahead adder? Ans: The input carry required by a stage is directly computed from carry signals obtained from all of the preceding stages i-1,i-2,.....0, rat
Q. Rank the list elements in terms of distance? Rank the list elements in terms of distance from each to last element in given linear linked list. A parallel algorithm for t
Which of the memory is volatile memory ? Ans. A volatile memory is RAM. Term Volatile memory implies the contents of the RAM get erased as soon as the power goes off.
Q. What is Unique port number? A port is an extra 16-bit number which uniquely identifies particular service on any given machine on Internet. Port numbers are 16 bit wide, con
Define the System Analysis of Object oriented modelling System Analysis: In this stage a statement of the queries is formulated and a model is designed by the analyst in enc
Organisational Inertia - Obstacle To Information System This is most easily understood as problems of change and culture. Like any change process technology led change will be
How would you implement each in a class design? Ans) A specialized class "is" a specialization of another class and, thus, has the ISA relationship with the other class. An Em
what is hashing in database management system?
what is equivalence partition
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