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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.
Q. What is Linked List? A linked list is a data structure formed by zero or more nodes linked by pointers. Every node has two parts as shown in Figure below. One of them is inf
What is the necessity of an interface? Any device that has to be linked to a CPU requires an interface. This takes care of the mismatch in speed, data and electrical character
Q. What is multi-threaded unix kernel? Multi-threaded UNIX kernel: We know threads are light-weight processors demanding minimal state information comprising the processor stat
Q. Explain Call and Return Statements? CALL: CALL X Procedure Call to procedure/function named X CALL instruction causes the following to happen: 1. Decre
primlncipal of edtamethod
Demonstrate Arc consistency: To demonstrate the worth of performing an arc-consistency check before starting a serarch for a solution, we'll use an example from Barbara Smith'
Q. Which Colour technologies used in Monitors and Printer? Monitor screens and Printers use different colour technologies. The monitor uses RGB and the Printer CMYK. So, how d
Define ROM? It is a non-volatile memory. It includes only reading of stored data.
a. Sketch the excitation diagram indicating the last states and next states. b. Build the circuit using a Synchronous Counter with JK FF and NAND gates only. Replicate the circ
Q. Explain working of Digital camera? A Digital camera is a camera which captures and stores still images and video (Digital Video Cameras) as digital data in place of on photo
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