Block diagram of computer, Basic Computer Science

 

Input unit: These are used to read data and transfer to primary memory contained in CPU through keyboard or floppy disk or mouse etc.
Central Processing Unit (CPU): This consists of three divisions. They are:

1) Primary memory unit: This memory unit allows computer to store the data orinstruction read by input devices or data obtained by calculations in the program.

2) Control unit: This controls unit directs the operations of all units. This unit decodes and executes the instructions given in the program.

3) Arithmetic logic unit: This performs basic arithmetic operations like adding, subtracting, multiplicating, dividing and uses trigonometrical functions. It can also perform logical operations like comparing two variables, justifying the conditions. It can take many logical decisions.
Secondary memory or storage unit: These are external storage units and store data or program permanently on magnetic disk and magnetic tape.

 

1819_block diagram of computer.png

Output unit: Output unit is used to take data from primary memory and writes it on output devices like video display unit or printer etc. All these physical units and various other equipments in which the computer is made of is called ‘hardware'. The sequence of instructions given to a computer to solve any problem is called ‘software'.

 

Posted Date: 8/29/2012 2:23:48 AM | Location : United States







Related Discussions:- Block diagram of computer, Assignment Help, Ask Question on Block diagram of computer, Get Answer, Expert's Help, Block diagram of computer Discussions

Write discussion on Block diagram of computer
Your posts are moderated
Related Questions
which computer architecture use single bus structure??????? tells the name and little bit working

QUESTION (a) For each of the following systems, determine whether the system is (1) stable, (2) causal, (3) linear, (4) time invariant, (5) passive (i) Y[n] = x[-n] (ii)

what is Metropolitan area network?

Given the scenario below, construct a conceptual model. The Seville, Spain soccer association is renovating their soccer arena. They are adding luxury boxes that will be offered to

This is an article and I want great synopsis for the article


You have been approached by Company XYZ to design and deploy a new network that will span three cities in Queensland: Brisbane (12 users), Gold Coast (8 users), and Cairns (6 users

Trap doors:  This is a way of bypassing normal authentication procedure (windows/ operating system user name  and password) to access a system. Once a system is compromised (impac

Question 1 What are the different stages of evolution of Computer Architecture? Explain in detail Question 2 What are the components of Instruction Set architecture? Discu

online project on hrm i.e index page