what is computer architecture?

what is computer architecture?

         Computer Architecture a computer is a machine that processes information. what we mean by "processes" is that the informa... 22:56

        Computer Architecture
a computer is a machine that processes information. what we mean by "processes" is that the information put into the computer has something done to it.sometime the computer is asked to do calculations with the information. sometime we ask the computer just to store the information so that it can be easily found when we need it. computers have the capabilities to store and process a large amount of information at extremely high speed and produce highly accurate results. computer can work 24 hours a day and can do some jobs that would be impossible without them.
the 10 years has seen a computer revolution that has produced

computers with speed and computing power thousands of time greater then the first commercial computers while being to larger then  a typewriter. this revolution occurred as a result of integrated circuits that combine many electronic components on a single silicon chip.in particular, large-scale integration(isl) and very-large-scale integration(Vlasic)technologies can put tens of thousands of transistors on a single chip. this has made it possible to fabricate the entire brain of a  computer as a single integrated circuit called a microprocessor. the addition of a relatively small number of other chips produces a complete microcomputer.
from the first digital computers of the 1940s to today's  powerful full-size computers and revolutionary microcomputers, very little change has occurred in the basic principles of operation. although the technology has come a long way from the time when a computer filled a big room and was considered too costly for most applications. modern computers still work with binary numbers (Is and Os) using the same basic logic operations as their predecessors. in this chapter many of the concepts, principles and operations that are common to all types of computers are presented.