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Why do we need Registers?
If tcpu is cycle time of CPU which is the time taken by CPU to execute a well-defined micro-operation employing registers and tmem is memory cycle time which is the speed at which memory can be accessed by CPU then (tcpu/tmem) is in the range of 2 to 10 i.e. CPU is 2 - 10 times faster than memory. So CPU registersare the fastest temporary storage areas. So the instructions whose operands are stored in fast CPU registers can be executed fast in comparison to instructions whose operands are in main memory of a computer. Every instruction should designate the registers it will address. So a machine needs a large number of registers.
Figure: CPU with general register organisation
Control Unit (CU) : Every PEs are under the control of one control unit. CU controls the inter communication among the PEs. There is a local memory of CU also known as CY memory.
What is Batch processing In this process, a number of tasks (or jobs) are all collected together over a set period of time. They are then all loaded into the computer system (i
Telex is a (A) Telephone Service between various subscribers (B) Tele printer Service between various subscribers (C) Television Service between various subscri
Consider the following pseudo-code segment. 1. input y {y is a three-digit hexadecimal number} 2. d ← 0 3. for i = 1 to 3 3.1. char ← i th character from y readin
Describe language processing activities? There are two different kinds of language processing activities: a. Program generation activities b. Program execution activities
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All components of computer communicate with processor by the system bus. Which means I/O devices required to be attached to system bus. But I/O devices aren't connected directly to
implementation of threads
What is response ratio? HRRN that is Highest Response Ratio Next scheduling is a non-preemptive discipline, as same to Shortest Job First (SJF) wherein the priority of all jobs
Q. Explain about Indirect Addressing? In this technique the operand field of instruction specifies the address of address of intended operand for example if instruction LOAD
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