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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.
Discuss the role of handler’s classification?
Mention the two subsystem relationship. The relationship among two subsystems can be: Client-server Peer-peer
a. What are the activities included during the process of developing a formal specification of a sub-system interface? b. Explain the Pair Programming? What are the benefits of
Define Flash Memory. It is an approach same to EEPROM technology. A flash cell is based on a one transistor controlled by trapped charge just like an EEPROM cell.
Q. Define Interrupt Processing? On completion of execution of an instruction machine checks whether there is any pending interrupt request for interrupts which are enabled. If
Q. Illustrate what is the universal law of universal gravitation? Answer:- Declaration that any particle of matter in the universe attracts any other with a force varying
What is meant by hide area? The hide command temporarily kept the contents of the field at the present line in a system-controlled memory called as the HIDE AREA. At an intera
A1->A2A3 A2->A3A1|b A3->A1A2|a
Q. Programming with parallel virtual machine? The general method for writing a program with PVM is like this: A user writes one or more sequential programs in C++, C or FOR
What are the Process states? By the courses of implementation, processes change state. Status of a process is express by its present activity. Dissimilar practical states of
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