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Q. Explain about Instruction Register and Flags?
The Instruction Register: It comprises the operation code (opcode) and addressing mode bits of the instruction. It assists in determining the numerous cycles to be performed and hence determines related micro-operations that are required to be performed.
Flags: Flags are used by CU for determining the status of CPU and the results of a previous ALU operation. For illustration a zero flag if set conveys to control unit that for instruction ISZ (skip subsequent instruction if zero flag is set) the next instruction has to be skipped.
Q. What is Data link layer? Data link layer: data link layer is responsible for transmitting a group of bits between adjacent nodes. Group of bits is termed as frame. Network
Compare a decoder and a demultiplexer with suitable block diagrams. Ans. Demultiplexer has similar circuit as decoder but here e is obtained as the particular input line, the
Define lazy swapper. Rather than swapping the whole process into main memory, a lazy swapper is used. A lazy swapper never swaps a page into memory unless that page will be re
To avoid race condition, the maximum number of processes that may be simultaneously inside the critical section is The maximum number of processes is one to ignore race conditi
E xplain the working of thousand line exchanges by u sing a combination of uniselectors and two motion selectors. The schematic diagram for such an exchange is demonstrated i
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Why does FTP use two standard ports whereas other protocols, in general use only one port? Justify. File transfer protocol uses a control connection just to send commands and r
What format should my database be saved in to allow different versions of Microsoft Access to open the database? Ans) MS Access is not backwards compatible. To share tables amon
What is Morphing Differences in appearance between key frames are automatically calculated by computer - this is called MORPHING or TWEENING. Animation is ultimately RENDERED (
Shared Memory Shared Memory refers to memory component of a computer system in which the memory can accessed directly by any of the processors in the system. Distributed
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