description of Instruction execution, Basic Computer Science

Assignment Help:
When software is installed onto a modern day personal computer (most commonly from a CD-ROM, though other media or downloading from the internet is also common), code comprising the program and any associated files is stored on the hard drive. This code comprises of a sequence of instructions for performing designated tasks, and data associated with these instructions. The code remains there until the user chooses to execute the program in question, on which point sections of the code are loaded into the computer’s memory.
The CPU then executes the program from memory, processing every instruction in turn. Certainly, in order to execute the instructions, it is necessary for the CPU to understand what the instruction is telling it to do. Consequently, recognition for instructions that could be encountered requires to be programmed into the processor. The instructions that can be recognized by a processor are referred to as an ''instruction set'',
Once the instruction has been recognized, and the actions that should be carried out are decided upon, the actions are then performed before the CPU continues on to the next instruction in memory. This process is called the ''instruction execution cycle'',
Results can then be accumulated back in the memory, and later saved to the hard drive and perhaps backed up onto removal media or in separate locations

Related Discussions:- description of Instruction execution

D, #questionWrite a program to find the area under the curve y = f(x) betwe...

#questionWrite a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two poi

Management information system, Is IT a strategic weapon or a survival tool?...

Is IT a strategic weapon or a survival tool? Discuss.

Fms control-display unit, FMS CONTROL-DISPLAY UNIT: The CDU provides a ...

FMS CONTROL-DISPLAY UNIT: The CDU provides a means for the crew to communicate with the FMC.  It contains pushbutton key controllers and a display screen.  The keys are of two

Creating Navigational Buttons in Oracle, Need some help in creating custom ...

Need some help in creating custom forms navigational buttons in oracle 10g

Algorithms, write algotithm and flow chart for largest of 3 numbers

write algotithm and flow chart for largest of 3 numbers

The terms ''row-major order'' and ''column-major order", What is meant by t...

What is meant by the terms 'row-major order' and 'column-major order'? Ans: (i) Storing the array column by column is called as column-major order and storing the array row by

What is heuristic evaluation, Question 1: (a) How would you describe h...

Question 1: (a) How would you describe human reasoning? (b) Describe the different types of human reasoning? Question 2: (a) What are the computational factors affec

Concept in programming language, CONCEPT IN PROGRAMMING LANGUAGE: A Pr...

CONCEPT IN PROGRAMMING LANGUAGE: A Programming Language is used to design and describe a set of instructions and computations to be executed by a computer. To do programming,

Central processing unit, Central Processing Unit: A Central Processing...

Central Processing Unit: A Central Processing Unit (CPU) in a computer system is an extremely fast device as compared to the main memory, but it can not work on its own. It de

About flag instructions, They straightforwardly affect the content of the f...

They straightforwardly affect the content of the flags. CLC CLD CLI CMC STC STD STI CLC INSTRUCTION Reason: To uncontaminated the cartage flag. Syntax: CLC This instruction turning

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