How are the instructions executed and interpreted, Computer Engineering

Assignment Help:

Q. How are the instructions executed and interpreted?

All computers have a Unit which performs arithmetic and logical functions. This Unit is called as Arithmetic and Logic Unit (ALU). However how will computer decide what operation is to be carried out by ALU or we can say who will interpret the operation that is to be performed by ALU?

This interpretation is carried out by Control Unit of computer. The control unit recognizes the binary form of instruction as well as interprets instruction to generate control signals. These control signals then direct ALU to carry out a particular arithmetic or logic function on data. Thus by changing control signal desired function can be performed on data. Or on the other hand the operations that require to be performed on the data can be achieved by providing a set of control signals. So for a new operation one just needs to change set of control signals.

The unit which interprets a code (a machine instruction) to produce respective control signals is called as Control Unit (CU). A program comprises a sequence of codes. Every code is, in effect, an instruction for computer. The hardware interprets each one of these instructions and then generates respective control signals such that desired operation is performed on data.

The Control Unit (CU) and Arithmetic Logic Unit (ALU) together are termed as Central Processing Unit (CPU). CPU is the most significant component of a computer's hardware.

All these arithmetic and logical Operations are carried out in CPU in some special storage areas known as registers. Size of the register is one of the significant considerations in signifying processing capabilities of CPU. Register size indicates to the amount of information which can be held in a register at a time for processing. Larger the register size the faster can be the speed of processing.


Related Discussions:- How are the instructions executed and interpreted

Trusted publisher, State the criteria which a trusted publisher should meet...

State the criteria which a trusted publisher should meet before adding him? Ans) The following criteria should be met by the publisher before adding him to the list. ? The

Difference between a null pointer and a void pointer, A NULL pointer is a p...

A NULL pointer is a pointer of any type whose value is zero. A void pointer is a pointer to an object of an unknown type, and is guaranteed to have sufficient bits to hold a pointe

What is the system call available to change the personality, What is the sy...

What is the system call available to change the personality? The system call personality prefers to a method to modify its implementation domain in order that Linux can emulate

What are the modes in which any update tasks work, What are the modes in wh...

What are the modes in which any update tasks work? Synchronous and Asynchronous.

Show the comparison of ascii and ebcdic, Q. Show the Comparison of ASCII an...

Q. Show the Comparison of ASCII and EBCDIC? EBCDIC is an easier to employ code on punched cards due to BCD compatibility. But ASCII has some of major benefits on EBCDIC. These

How will you fine-tune a class, How will you fine-tune a class? It is u...

How will you fine-tune a class? It is useful to fine-tune classes before writing code in order to examine development or to improve performance. The purpose of execution is to

How are standard query operators useful in linq, Standard Query Operators i...

Standard Query Operators in LINQ can be used for working with collections for any of the following and more. 1. Get total count of elements in a collection. 2. Order the resu

What is system programming, what is system programming? System programm...

what is system programming? System programming is the activity of implementing and designing SPs. System programs that are the standard component of the s/w of most computer

How does output caching work in asp.net, How does output caching work in AS...

How does output caching work in ASP.NET?    Output caching is a powerful method that enhances request/response throughput by caching the content generated from dynamic pages. O

Invariant of the class, What are the conditions that have to be met for a c...

What are the conditions that have to be met for a condition to be an invariant of the class? Ans) ? The condition should hold at the end of each constructor. ? The conditi

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd