Block diagram of digital computer, Basic Computer Science

Assignment Help:

Block diagram of digital computer:

The general pattern of computer architecture has remained unchanged over the last four decades or so. It has a single processor, which accepts data from an input device or obtains it from backing storage, performs some operations on it, and returns the processed data to storage or to an output device. Information is passed between the components by means of a high speed data channel, (see the block diagram of a digital computer) known as a bus. The operation is serial, with a single operation being performed on a single data item.  

 

2040_block diagram of a digital computer.png

The result is a general purpose computer, able to be used for different tasks. Over the years many improvements have been made to this sort of computer to improve its speed and power. One example is the emergence of RISC (Reduced Instruction Set Computing) machines, which give faster performance for some types of applications by using a smaller set of machine instructions. It maybe mentioned that the main change in computer architecture that is now widens/ay is the emergence of parallel processing. In other words, parallel processing machines can perform the same operation on a number of data items at a time, or may have a number of processing units operating independently, performing different operations on different data items simultaneously. Parallelism has been first developed for super-computers. However, the parallelism requires special software for its applicability. Hence its utility is somewhat limited. It may be mentioned that parallel processor machines are now beginning to be used for database applications. Parallel processing is now becoming generally available in the form of transputer which can be attached with or added to microcomputer systems to improve their performance. Most of the professionals seeking to automate some aspects of information management will be using microcomputers. However, it is desirable to know developments in larger machines.  

 


Related Discussions:- Block diagram of digital computer

Laser printers, Laser Printers: These printers can print a whole page ...

Laser Printers: These printers can print a whole page at one command, offer highest quality and can combine text, graphics, etc. They are generally restricted to A4 paper and

Text, text graphics audio video

text graphics audio video

Copmurer, Classify computer systems according to capacity. How they are dif...

Classify computer systems according to capacity. How they are different from computers according to the classification of technology. Provide comparative study also.

Hypertext transfer protocol (http), It's a common protocol or "language" co...

It's a common protocol or "language" computers use to "speak" to each other over the Web.

Generic techniques in artificial intelligence, G e ne ric Techniques Dev...

G e ne ric Techniques Developed: In  the  pursuit  of  solutions  to  many   problems  in  the  above  categories,  serval specific  techniques have sprung up which have bee

Communication networks and local area networks, Communication Networks: ...

Communication Networks: Communication networks are made up of transmission lines, concentrators, switching mechanisms and non-data processing components. Due to increased comp

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

Assignment, Assignment of computer science

Assignment of computer science

Foundation of computer system, Foundation of Computer System Q.No-1: W...

Foundation of Computer System Q.No-1: What do you understand by the Efficiency in term of Computers? and How will you measure it? Also define Speed and its factors which ca

Types of chat room, Types of chat room: Java Chat rooms: The most comm...

Types of chat room: Java Chat rooms: The most common and popular chat scripts are based on java which is object oriented language. Java is freely available and comes with virt

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