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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.
Explain Dial Tone and Ringing Tone in strowger telephony. Dial Tone: it is used to indicate that the exchange is ready to recognize dialed digits by the subscriber. The subsc
What are the various mechanisms for implementing I/O operations? a) Program controlled I/O b) Interrupts c) DMA
Q. Find the Largest and the Smallest Array Values? Write down a program to find the largest as well as the smallest numbers from a given array. This program uses JGE (jump grea
Q Perform Binary Subtraction on following: 1) 1101-1000 2) 111.11-101.1 3) 1101.1-1010.01 Q Perform Binary Multiplication & Division on following: 1) 16*2.75 2) 1
What are the ways to create a new form? You can make a new form in any of the following three ways: Using AutoForm: You can make a form based on a single table or query qui
Why address bus is unidirectional and data bus is bidirectional? Ans) Because there is no require address transaction among processor and peripheral device but data bus is req
Q. Graphic symbol of S-R flip-flop? R-S Flip flop - Graphic symbol of S-R flip-flop is displayed in Fig below. It has 3 inputs S (set), R (reset) and C (for clock). Q(t+1) is
State the number of definitions of firewall Though there exist a number of definitions of firewall, in simplest terms it can be defined as "a mechanism used to protect a truste
Describe the operation of voltage to frequency ADC. Ans: A voltage-to-frequency converter i.e. VFC is an oscillator that frequency is linearly proportional to a control volt
what is the minimum number of page faults for an optimal page replacement strategy?
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