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Q. What is File allocation table?
FAT maps the usage of data space of disk. It comprises information about space used by every individual file and unused disk space as well as space which is unusable because of defects in disk. Because FAT comprises essential information, two copies of FAT are stored on disk so that in case one gets damaged then the other can be used. A FAT entry can include any of the following:
Give difference between compiler and interpreter. Compiler: It is a translator for machine independent HLL as FORTRAN and COBOL etc. Interpreter: It analysis the source
Multiprogramming is a rapid switching of the CPU back and forth among processes.
A 2-digit BCD D/A converter is a weighted resistor type with E R = 1 Volt, with R = 1M? , R f = 10K? . Find resolution in Percent and Volts. Ans. Resolution = 1/2 2 = 0.25 vo
Q. What is Base Register Addressing ? An addressing technique in which content of an instruction specifies base register is added to address field or displacement field of the
Define bidirectional bus? A bidirectional bus is that which permits the transfer of data either from memory to CPU during a read operation or from CPU to memory during write op
Q. What is the significance of having less memory references? As the time needed for memory reference is more than that of a register reference so increased number of memory r
How can you display frames (horizontal and vertical lines) in lists? You can show tabular lists with horizontal and vertical lines (FRAMES) using the ULINE command and the syst
Q. Write an interrupt routine to handle 'division by zero'? This file can be loaded just like a COM file though makes itself permanently resident until the system is running.
Q. Explain about Butterfly permutation? Butterfly permutation: This kind of permutation is attained by interchanging the most significant bit in address with least significant
What are preprocessor directives? Preprocessor directives: These are the commands given to a program called as pre-processor that processes the source code before it passes by
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