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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.
What is a FIFO? FIFO is otherwise known as 'named pipes'. FIFO (first-in-first-out) is a particular file which is said to be data transient. Once data is read from named pipe,
Differentiate between pre-emptive and non-pre-emptive scheduling. Pre-emptive scheduling : in its approach, center processing unit can be taken away from a process if there is a
Explain the term- Signals - Signals are used for communication between components - Signals can be seen as real, physical signals - Some delay should be incurred in a
Q. What is a breeder reactor? 92 U 238 and 90 Th 232 aren't fissile materials but are abundant in nature. In the reactor these are able to be converted into a fissile mater
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shell script for addnames that has to be called as class list in the name of the class list file and username is a particular student''s username
Q. Selecting integerated learning experiences? It is important that we select appropriate experiences for children, more so those that are from the child's world and emerge fro
Q Explain Instruction cycle and Execution cycle. and also explain Instruction Counter, Memory Address Register and Memory Buffer Register.
A computer communication technology that gives a way to interconnect multiple computer across short distance is LAN
Control Signals from Control Bus: A number of the control signals are provided to control unit by the control bus. These signals are issued from outside the CPU. Some of these si
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