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
exchanging the two variables: problem,algorithm development,discription

AUDIO/VIDEO APPLICATIONS ON NETWORK Clinical applications of a computer include recording of slit lamp images on a computer. These still images or even videos can be recorde

A string S is said to be "Super ASCII", if it contains the character frequency equal to their ascii values. String will contain only lower case alphabets (''''''''a''''''''-'''''''

Question: Using a questionnaire is a popular way commonly used to evaluate interfaces. (a) Describe advantages of using questionnaires as a means to evaluate interfaces.

Question 1 List two I/O virtualization methods. Based on different features compare these two methods Question 2 Discuss three areas considered by organizations to secure the

Digital to analogue conversion (dac): Since many systems used on aircraft will require outputs in analogue form, it will be necessary to be able to convert the digital informat

Question 1 Briefly explain the classification of the computers Question 2 What is arithmetic logic unit? How it is helpful in CPU? Question 3 How do you install a

input is n positive numbers and reverse it, out put gv the absolute difference and give the reverse(magic number),using function reverseinteger, and function generate magicnumber


Department (DeptNo, DeptName, Office, Phone) Employee (EmpNo, FirstName, LastName, JobTitle, HireDate, Salary, MgrNo, Deptno) Customer (CustNo, CompanyName, Street, City, State, Zi