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

Pipelining, tellme the types of pipelining

tellme the types of pipelining

The gigo principle, The GIGO Principle : This is a simple principle with a...

The GIGO Principle : This is a simple principle with a clear message and universal application - Garbage In - Garbage out! Always try and enter any data in the form you want to

Digital design system, Manipulate the following Boolean expression in such ...

Manipulate the following Boolean expression in such a way so that it can be implemented using exclusive-OR and AND gates only. AB''CD'' + A ''BCD'' + AB''C''D + A''BC''D

Define stocktaking, QUESTION (i) Define each of the following terms: ...

QUESTION (i) Define each of the following terms: a) Book trade catalogue b) Stocktaking c) Ephemera d) Contracting out e) Special library (ii) Discuss the adv

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

Assignment, write an essay explaining the following: 1.Storage aspects a. D...

write an essay explaining the following: 1.Storage aspects a. Disk formatting, b.Disk boot block ,c.Bad block removal, d.Compensation.

Assignment Help, How would you format while loops to fufill my project writ...

How would you format while loops to fufill my project write up?

Examples of online databases, Examples of Online Databases: The adopti...

Examples of Online Databases: The adoption of modern technology has resulted in the proliferation of machine readable databases. The National Library of Medicine (USA) designe

Instruction pipeline, How branching takes place in Instruction pipeline. Ex...

How branching takes place in Instruction pipeline. Explain with suitable examples.

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