description of Instruction execution, Basic Computer Science

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
Posted Date: 5/3/2012 7:28:04 AM | Location : United States







Related Discussions:- description of Instruction execution, Assignment Help, Ask Question on description of Instruction execution, Get Answer, Expert's Help, description of Instruction execution Discussions

Write discussion on description of Instruction execution
Your posts are moderated
Related Questions
Header contains routing and error control information Payload carries the actual user information, either voice, data or video

What is virtual memory? How address mapping is done in cache memory? Elaborate your answer with examples.

Question 1 Explain synchronous and asynchronous Data Replication Question 2 Write a short note on Access Time, Latency, Transfer Time, and Streaming Tape Question 3

Problem Hanson websites are built to work for your business and are built on the concept of intelligent website. An intelligent website is more than just a brochure on the web.

SWITCHING MECHANISMS: Switching mechanisms are techniques devised to send messages in many dinections at once and to ensure that these messages are received with a minimum of

Design and develop a program to calculate the sum of an integer number using MIPS assembly language.

what is the goals of enterprise collaboration system?

Process of Data mining Data mining is an iterative process that typically involves the following phases: Problem definition A data mining project starts with the understanding o

define complement?