Write a note on history of computers

Short note on history of computer?

Write a note on history of computers

Introduction to Computer Each generation of computer is characterized by a major technological development that fundamentally changed the way computers operate, resulting in increasingly smaller, cheaper, more powerful and more efficient and reliable devices.

The various generations of computers an listed below: There were four competing technologies for providing computer memory: The digital computes using electronic valves Vacuum tubes are known as first generation computers.

The high cost of vacuum tubes prevented their use for main memory. They stored information in the form of propagating sound waves. The vacuum tube consumes a lot of power. The Vacuum tube was developed by Lee DeForest in These computers were large in size and writing programs on them was difficult.

Some of the computers of this generation were: Mark I is the first machine to successfully perform a long services of arithmetic and logical operation.

Mark I is the First Generation Computer. This was the first programmable digital computer made in the U. But it was not a purely electronic computer.

Instead the Mark I was constructed out of switches, relays, rotating shafts, and clutches. The machine weighed 5 tons, incorporated miles of wire, was 8 feet tall and 51 feet long, and had a 50 ft rotating shaft running its length, turned by a 5 horsepower electric motor.

The completed machine was announced to the public the evening of February 14, ENIAC contained 17, vacuum tubes, 7, crystal diodes, 1, relays, 70, resistors, 10, capacitors and around 5 million hand-soldered joints.

It weighed more than 30 short tons 27 twas roughly 8 by 3 by feet 2.

write a note on history of computers

The concept of storing data and instructions inside the computer was introduced here. This allowed much faster operation since the computer had rapid access to both data and instructions. The other advantage of storing instruction was that computer could do logical decision internally. The EDVAC was a binary serial computer with automatic addition, subtraction, multiplication, programmed division and automatic checking with an ultrasonic serial memory.

The computer had almost 6, vacuum tubes and 12, diodes, and consumed 56 kW of power. Wilkes at Cambridge University in Two groups of individuals were working at the same time to develop the first stored-program computer.

It performed arithmetic and logical operations without human intervention. The key to the success was in the stored instructions which it depended upon solely for its operation.

This machine marked the beginning of the computer age. Ecker and Mauchly produced it in by Universal Accounting Computer setup. It was designed principally by J.

The machine was 25 feet by 50 feet in length, contained 5, tubes, 18, crystal diodes, and relays. It utilized serial circuitry, 2. It utilized a Mercury delay line, magnetic tape, and typewriter output.

Power consumption was about kva. Its reported processing speed was 0. The UNIVAC was also the first computer to come equipped with a magnetic tape unit and was the first computer to use buffer memory. The Whirlwind was the first computer to display real time video and use core memory.

Computers at this time were usually kept in special locations like government and university research labs or military compounds. Limitations of First Generation Computer Followings are the major drawbacks of First generation computers.

They used valves or vacuum tubes as their main electronic component. They were large in size, slow in processing and had less storage capacity. They consumed lots of electricity and produced lots of heat.

Their computing capabilities were limited.Each generation of computer or History of computer is characterized by a major technological development that fundamentally changed the way computers operate, resulting in increasingly smaller, cheaper, more powerful and .

Throughout human history, the closest thing to a computer was the abacus, which is actually considered a calculator since it required a human operator. Computers, on the other hand, perform calculations automatically by following a series of built-in commands called software.

In the 20 th century. a brief computer history The computer as we know it today had its beginning with a 19th century English mathematics professor name Charles Babbage.

He designed the Analytical Engine and it was this design that the basic framework of the computers of today are based on. Write a short note on latest two inventions in computer? Two of the latest inventions in the computing world are USB and DDR4. USB was invented by the USB Promoter Group while DDR4 was.

A Short History of Computers and Computing

Each generation of computer or History of computer is characterized by a major technological development that fundamentally changed the way computers operate, resulting in increasingly smaller, cheaper, more powerful and more efficient and reliable devices. Students take notes in notebooks, and studies suggest that the act of writing (as opposed to typing) improves learning.

[8] Notebook pages .

Short History of Computers