Basic operational concepts of a computer, Computer Engineering

Assignment Help:

Basic Operational Concepts of a Computer:

  • Most of computer operations are executed in the ALU (arithmetic and logic unit) of a processor.
  • For an example: to add 2 numbers that are both located in memory.

-          Each number is taken into the processor, and the definite addition is performed by the ALU.

-          Then sum may be stored in memory or retained in the processor for immediate use.

Registers

  • When operands are taken into the processor, they are stored in high-speed storage elements (registers).
  • A register may store 1 piece of data (8-bit registers, 16-bit registers, 32-bit registers, 64-bit registers, etc...)
  • Access times to registers are quicker than access times to the fastest cache unit in the memory hierarchy.

Instructions

  • The Instructions for a processor are declare in the ISA (Instruction Set Architecture)- Level 2
  • Typical instructions include following:
  • Mov BX, LocA

1.      First fetch the instruction

2.      Fetch the contents of  the memory location LocA

3.      Store the contents in general purpose register BX

  • Add AX,BX

1.      Fetch the instruction

2.      Add the contents of registers BX and AX

3.      Place the sum in register AX


Related Discussions:- Basic operational concepts of a computer

Write a program which collects in data samples, Write a program which colle...

Write a program which collects in data samples from a port at 1 ms interval. The upper 4 bits collected data same as mastered and stored in an array in successive locations. ; R

Eme, state function and path function

state function and path function

How is transaction processing system affected, How is Transaction Processin...

How is Transaction Processing System affect performance of e-commerce sites? Transaction Processing System influences performance of e-commerce sites: Transaction-Processing

Explain call and return statements, Q. Explain Call and Return Statements? ...

Q. Explain Call and Return Statements? CALL:       CALL X    Procedure Call to procedure/function named X   CALL instruction causes the following to happen:  1.  Decre

Write a program that finds the minimum total number of shelv, Write a progr...

Write a program that finds the minimum total number of shelv, C/C++ Programming

What is throughput?, If the throughput scales upward as time progresses and...

If the throughput scales upward as time progresses and the number of Vusers enhance, this showing that the bandwidth is sufficient. If the graph were to remain relatively flat as t

Explain fixed point representation, Q. Explain Fixed Point Representation? ...

Q. Explain Fixed Point Representation? The fixed-point numbers in binary has a sign bit. A positive number has a sign bit 0 whereas negative number has a sign bit 1. In fixed-p

Explain the action of an interrupt processing routine, Explain the action o...

Explain the action of an interrupt processing routine? Action of an interrupt processing routine is as follows : 1. Save contents of registers of CPU. This action is not e

Real life decoding, We have not considered the time element in our decoding...

We have not considered the time element in our decoding. An important time for decoding is the time from the address strobe (AS) to when the data is required in a read.   Time

Explain standard streams and file streams, a. Explain Standard Streams and ...

a. Explain Standard Streams and file streams. Differentiate among two types of stream. b. Write a program in C++ that inputs characters from the keyboard and prints them in reve

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