computers-literate.blogspot.com

Fundamentals of Computer: History

http://computers-literate.blogspot.com/p/history.html

History of computers started from the time when there were no any number systems discovered and no any devices for calculations.When the development of humans started the development of computers started as well.The devices discovered and people involved were :. It was the first counting device ever made.Heaven and Earth were the two parts in it.Addition and subtraction can only be done from this device.It was developed in China,Russia or Egypt. 2)John Napier and his rods. German mathematician Baron Gott...

Fundamentals of Computer: Programming Languages

http://computers-literate.blogspot.com/p/programming-languages.html

Programming has changed a lot since the computers were created.Different computer languages have been created.If you want to do any task using computer,you have to do in a such language that a computer can understand.Programming languages are said to be lower,higher,depending on whether they are close to the language the computer itself uses or the language that people use.Here different types of computer languages are described:. A compiler is a program that translates source code into object code.T...

Fundamentals of Computer: Parts / Devices

http://computers-literate.blogspot.com/p/parts-devices.html

A computer system consists of the following four components:. 3)Data (which are converted into information) and. All general purpose computers consists of following hardware:. 1)CPU (Central Processing Unit). The part of the computer that executes the program instructions is known as CPU.CPU is also known as the brain of the computer.The CPU has two parts-(i)CU (control Unit) and (ii)ALU(Arithmetic and Logic Unit). RAM stands for Random Access Memory.It is a type of memory that can be accessed random...

Fundamentals of Computer: Classifications

http://computers-literate.blogspot.com/p/classification.html

Computers are classified in different ways.There are different types of computers.Computers can be classified according to size,work,brand or model.A computer can be micro on the basis of size,IBM compatible on the basis of brand,XT on the basis of model and analog on the basis of work.Computers can be classified as:. AOn the basis of size:-. BOn the basis of work:-. Hybrid computers are the combination of both analog and digital computers.These computers can perform the works done by analog computer...

Fundamentals of Computer: Generations

http://computers-literate.blogspot.com/p/generations.html

First Generation computers (1945-1955) were made-to-order for specific tasks.Each computer had a different binary-coded program called machine language that helped it to operate.Some major characteristics of this generation are as follows:. The computers used vacuum tubes and magnetic drums for data storage. Very big in size,unreliable and slower than other generations. Produced large amount of heat for which massive air-conditioning was used. Operating speed was used in terms of milliseconds. IBM 1401,I...