# History of computer

The word computer comes from the Greek word “Compute” i.e. exactly meaning calculate. So, Computer is an electronic device which helps us to store and process our data or instructions at high speed with 100% accuracy. It can perform basic operations like arithmetical and logical (i.e. addition, subtraction, multiplication, comparison, etc.) and produce result according to the given instruction in a desirable form. A wide range of problems can be solved with help of computer. The problems may be related to the business, education, medical, banking, industry, development, communications, etc. A computer mainly works on the principle of Input, Process, Output and Storage (“IPOS”) cycle.**Read:- How to lock and unlock folder**

## History of computer

### 1450– Abacus – China

**Abacus is the first calculating device i.e. invented by China. It is widely used in china and its Far East areas for simple commercial calculations.**

### 1600 – Napier Bones – John Napier – England:-

**John Napier developed Napier Bones. He was Scottish mathematician. Napier Bones perform simple addition and subtraction works.**

### 1642 – Adding Machines – Blaise Pascal – France:-

**The well-known French scientist and mathematician, Blaise Pascal invented the first machine, which could add or subtract, carry out digits automatically. He was 19 years old at that time.**

### 1692 – Multiplying Machine – Gottfried Leibnitz – Germany:-

**Gottfried improved upon Pascal’s machine and introduced a mechanism to carry out automatically multiplications of numbers and it also performed square root functions. He is also work with Sir Isaac Newton in developing a branch of mathematics known as calculus.**

### 1813 – Difference Engine – Charles Babbage – England:-

**In early 19th century an Englishman named Charles Babbage developed a machine named difference engine, which could perform complex calculations and print them out as well.**

### 1863 – Analytic Engine – Charles Babbage – England:-

**An Englishman Charles Babbage developed a machine named Analytic Engine. He had conceived a mechanism, which could carry out long sequence of complex calculations automatically. He was the first person to conceive of the Stored Program Concept i.e. given by “Sir John Von Neumann”. Analytic Engine has the ability to store 1000, 50-digit number in one second and multiplies 20-digit numbers in 3 minutes.**

**So, development for Analytic Engine Charles Babbage is recognized as “The Father of Computers”.** Because Analytic Engine is a complete modern computer but technology at that time was not advanced enough to provide him with the hardware he required.

### 1930 – Turing Machine – Alan Turing – England:-

**An Englishman developed a machine named Turing Machine. It was hypothetical general purpose computing machine. Turing Machine published a book named “Computer Machinery & Intelligence”, in which he proposed Turing test of Artificial Intelligence that test, is still used by scientists. Turing test basically explains that computer is capable of interacting with user.**

### 1939 – ABC(Atanasoff Berry Computer) – John Atanasoff :-

**Professor John Atanasoff is led to the development of an electronic computer. He work with a graduate student Clifford Berry built an electronic calculating machine that could solve the problem of equations. ABC was first special purpose, electronic computer.**

### 1943 – ENIAC – Harvard University – USA:-

**ENIAC is stand for Electronic Numerical Integrator and Calculator. It performs all calculations that have a small pocket calculator of today. It is used vacuum tubes and it was able to do 300 multiplications per seconds. It’s weighed nearly 5 tons and occupied space equivalent to 2 big rooms.**

### 1947 – EDSAC – Cambridge University – England :-

**EDSAC is stand for Electronic Delayed Storage And Calculator. It proposed the use of binary numbers and the internal storage of instructions in digital form.**

### 1951 – UNIVAC – USA:-

**UNIVAC is stand for Universal Automatic Computer. Sperry Rand Corporation of USA introduces it. It was the first commercial automatic computer of the world.**

I hope that you understand my post. if you like this post then share my post, and comment on my post if you have any suggestion or Queries related to History of computer. Thank you!

I really appreciate this post. I’ve been looking everywhere for this! Thank goodness I found it on Bing. You have made my day! Thanks again!

You have brought up a very good points, thankyou for the post.

Now I аm ready tо do my breakfast, once having my

breakfаst coming again to read οther news.

An outstanding share! I have just forwarded this onto a coworker who was doing a little research on this.

And he in fact ordered me breakfast due to the fact that I discovered it

for him… lol. So allow me to reword this…. Thanks for the meal!!

But yeah, thanks for spending some time to discuss

this topic here on your site.

Hurrah, that’s what I was exploring for, what a information! existing

here at this webpage, thanks admin of this website.

Hi there! This post could not be written much better!

Going through this article reminds me of my previous roommate!

He continually kept preaching about this. I am going to send this post to

him. Pretty sure he’ll have a good read. Thank you for sharing!

Hey very interesting blog!

Heya i’m for the first time here. I found this board and I to find It truly useful

& it helped me out a lot. I’m hoping to provide one thing again and aid others like you helped me.

Spot on with this write-up, I honestly believe this web site needs

a lot more attention. I’ll probably be back again to read through more, thanks for the info!