Block diagram of computer, Basic Computer Science

Assignment Help:

 

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'.

 


Related Discussions:- Block diagram of computer

Explain the terms sampling and aliasing, QUESTION (a) Consider a syste...

QUESTION (a) Consider a system with input x[n] and output y[n] that satisfy the difference equation:                                   Y[n] = x[n] + 0.5 x[n-2] + 0.2 x[n+1]

E- learning processes, E- Learning Processes: Since, any e-learning pr...

E- Learning Processes: Since, any e-learning project checks your achievements against a learning outcome, therefore, it starts with identification and verification process. Th

Database, Q1: ER modelling & logical design. An information system is requi...

Q1: ER modelling & logical design. An information system is required for an online auction site, based on the following speci?cation: Only registered users can use the site. Privat

Assigment, how to measure marginal utility.?

how to measure marginal utility.?

Define and explain flow chart with an example, Question 1 Define and expla...

Question 1 Define and explain flow chart with an example Question 2 Write an algorithm to print all even numbers in descending order and draw the flowchart Question 3 Explain

What technical challenges must be overcome, QUESTION a) Clearly explain...

QUESTION a) Clearly explain three main issues arising in the design of components for use in Intranets. b) Explain the term "location-aware Computing". c) The Internet en

As, access,excel and ms word/

access,excel and ms word/

What are the different types of props, Question 1 Explain the importance o...

Question 1 Explain the importance of edge loops and anatomical body functions in animation Question 2 What are the three sets of curves for the hair system? Questio

Amendments in erp, What is new? ERP, on the other hand begins with a fr...

What is new? ERP, on the other hand begins with a fresh relook at the existing business. In fact it is the result of a happy marriage between Business Process Reengineering (BP

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