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Programmable read only memory (PROM)
A PROM is a memory chip on which data can be written only one time. Once a program has been written onto a PROM, it's permanent. Unlike RAM, PROM's retain their contents when the computer is turned off. Difference between a ROM and a PROM (read only memory) is that a PROM is manufactured as a blank memory while a ROM is programmed during manufacturing process. To write data onto a PROM chip, a special device known as a PROM programmer or PROM burner is required.
Memory utilization factor shall be computed as? Ans. memory in use/total memory connected.
Explain crossbar exchange, with all call processing steps and diagrams. The fundamental idea of crossbar switching is to give a matrix of n x m sets of contacts with only n + m
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Explain Priority encoder with an example. Ans. Priority encoder- Basically an encoder is a combinational circuit which performs the inverse operation of a decoder. The inp
The Utilization Count shows the status of each processor in a specific mode i.e. Overhead mode, busy mode, and idle mode with respect to the progress in time as shown in Figure.
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Compare the use of switch statement with the use of nested if-else statement. If-else statement: When there are many conditional statements that may all evaluate to true, bu
Show that a positive logic NAND gate is equivalent to negative logic NOR gate. Ans: Positive logic denotes True or 1 with a high voltage and False or 0 with a low volt
Multiprogramming is a rapid switching of the CPU back and forth among processes.
Define setup time and hold time, what will occur when there is setup time and hold tine violation, how to overcome it? For Synchronous flip-flops, we have particular requiremen
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