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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. How to copy files from a drive and directory? You can copy files from a drive and directory other that the currently selected one. However in that case, you need to speci
Solve the equation 23.6 10 = X 2 for X Ans. 23.6 10 = X 2 So as to find X, firstly convert the Decimal number 23.610 in its Binary form. After that take the decimal inte
Q. Explain the Structured Design of system? Structured Design utilizes graphic description (Output of system analysis) and focuses on development of software specifications.
What do understand by the granularity of a parallel system ? Granularity refers to the quantity of computation complete in parallel relative to the size of the entire program. I
Function Modules are also external Subroutines. True.
CISC Approach - CISC architecture: The main goal of CISC architecture is to finish a task in as few lines of assembly as possible as. This is gain by building processor hardwa
Complementary metal oxide semiconductor (CMOS) refers to a chip inside your computer that saves your BIOS settings. As a result, the terms CMOS & BIOS are sometimes used interchang
What is virtual memory? Virtual memory is a method used in some large computer systems that allow the user to construct program as by a large memory space were available, equal
INSERT OPERATION The insert operation inserts a new value into a set of bits. This is done by first masking bits and then O ring them with required value. For illustration, sup
Advantages on electronic payment system It gives good security schemes. Four necessary security requirements for safe e-payments are Authentication, Encryption, Integrity,
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