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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. Explain Point-to-point Message Passing? In point to point message passing, one process transmits/receives message from/to another process. There are four communication modes
explain different types of parallel processing mechanism
The new season of AFL, and the excited coming FIFA World Cup in South Africa this June, many sports fans are willing to find the latest results of their beloved sports teams. In th
State The advantages of specifying parameter assignments using defparam are: - This method always has precedence over specifying parameters at the instance of instantiation.
Dynamic screen sequence for a screen can be set using which commands? It uses two commands:- A) Set Screen B) Call screen.
What do you understand by WWW WWW: The World Wide is an architectural framework for accessing linked documents increase out over thousands of machines all over the world. It
What is a Process Scheduling? Scheduling is a key element of the workload management software that usually performs several or all of: Queuing Scheduling Monito
What are Addressing Modes Many of instructions that a computer actually executes during running of a program concern movement of data to and from memory. It is not possible sim
What is the difference between proc. sent BY VAL and By Ref? BY VAL: Alters will not be reflected back to the variable. By REF: Alters will be reflected back to that variab
A full size keyboard has distance between centres of keycaps (keys) like 19mm (0.75in).The keycaps have a top of nearly 0.5in (12.5in) that is shaped as a sort of dish to help you
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