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A NULL pointer is a pointer of any type whose value is zero. A void pointer is a pointer to an object of an unknown type, and is guaranteed to have sufficient bits to hold a pointer to any object. A void pointer is not guaranteed to have sufficient bits to point to a function (by in general practice it does).
Draw and elucidate the block diagram of programmable interrupt controller 8259. The 8259A adds 8 vectored priority encoded interrupts to microprocessor. It can be expanded to 6
Explain the operation of 8:1 multiplexer. Ans: In this multiplexer 8 Input and 1 Output and three select lines i.e. S 2 , S 1 , S 0 are given. Any one of the inputs will be
What is meant by inter process communication? Inter process Communication: The OS give the means for cooperating processes to communicate with each other through an inter pro
Q. Show the properties of Text Box? The tag is used to specify where user input is expected. It has several attributes, of which TYPE attribute is used to specify th
Variable ordering - Forward checking: Hence this is different from variable ordering in two important ways as: Whether this is a dead end when we will end up visiting a
What are the central interfaces of the R/3 system? There are three central interfaces:- Presentation Interface. Database Interface. Operating system Interface.
Q. Explain about IFRAME? is an HTML 4.0 addition to frames toolbox. Presently only MSIE supports . Unlike frames created employing and
Q. How steps of instruction execution can be broken down? Let's explain how these steps of instruction execution can be broken down to micro-operations. To make easier this dis
what is inheritence and all types in java?
Q. Explain about RISC ARCHITECTURE? Let's first list some significant considerations of RISC architecture: 1. RISC functions are kept simple unless there is a very good reas
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