Early people developed certain kinds of counting device. As man advanced, the counting also became more and more complex. In order to find the solution to counting, the mathematical problems and scientific problems computers were developed. Different kinds of counting devices developed are given in the paragraphs below.

This is the earliest counting device. It was invented 2000 years before. It has two sections -Heaven and Earth. The beaded strings are kept inside the 'abacus. On each string of earth, there are 5 beads with a value equal to 1 and in the heaven; there are 2 beads with a value of 5 each. The bar which divides heaven and earth is known as mid bar.

John Napier was a Scottish Mathematician. In 1614 he developed 11 sets of bones on which numbers were engraved. These sets of bones were set used for calculation. The bones were set together to find the multiplication table also.

In 1620, William Oughtred developed a device called slide rule. Slide rule consists of two scales in which one scale slides over the other. This is an analog device and it was popular till 1970s.Pascal's Calculating MachineBlaise Pascal was a French Mathematician. in 1642 he developed a calculating device. This was very popular since that kind of calculating device was never built before. He invented this device to assist his father for calculating taxes. His father was tax superintendent at Royen.

Gottfried Leibniz was a German mathematician. In 1671 he developed a more powerful calculating machine which is called Stepped Reckoner. This could find the square roots also.

Charles Babbage is the most known person in the field of historical computing. He developed a machine called Analytical Engine. The concept used in his machine is the same as we have in modern computers. He could not complete his work due to the lack of technology and devices required for this machine at that time. His credit in the field of computing has honored him as the

Dr. Herman Hollerith developed punched cards to solve the problem in American census in the year 1886-1887. The punched cards have holes at different places which are made by the machine called punch hoper. The hole represents data for tabulating machine which was developed by Hollerith himself.

**Abacus**

This is the earliest counting device. It was invented 2000 years before. It has two sections -Heaven and Earth. The beaded strings are kept inside the 'abacus. On each string of earth, there are 5 beads with a value equal to 1 and in the heaven; there are 2 beads with a value of 5 each. The bar which divides heaven and earth is known as mid bar.

**Napier’s bones**

John Napier was a Scottish Mathematician. In 1614 he developed 11 sets of bones on which numbers were engraved. These sets of bones were set used for calculation. The bones were set together to find the multiplication table also.

**Slide Rule**

In 1620, William Oughtred developed a device called slide rule. Slide rule consists of two scales in which one scale slides over the other. This is an analog device and it was popular till 1970s.Pascal's Calculating MachineBlaise Pascal was a French Mathematician. in 1642 he developed a calculating device. This was very popular since that kind of calculating device was never built before. He invented this device to assist his father for calculating taxes. His father was tax superintendent at Royen.

**Leibniz's Calculating Machine**

Gottfried Leibniz was a German mathematician. In 1671 he developed a more powerful calculating machine which is called Stepped Reckoner. This could find the square roots also.

**Analytical Engine**

Charles Babbage is the most known person in the field of historical computing. He developed a machine called Analytical Engine. The concept used in his machine is the same as we have in modern computers. He could not complete his work due to the lack of technology and devices required for this machine at that time. His credit in the field of computing has honored him as the

*Father of Computer Science*.

**Punched Card**

Dr. Herman Hollerith developed punched cards to solve the problem in American census in the year 1886-1887. The punched cards have holes at different places which are made by the machine called punch hoper. The hole represents data for tabulating machine which was developed by Hollerith himself.

Do you have a spam problem on this website; I also am a blogger, and I

was wanting to know your situation; we have developed some nice practices

and we are looking to swap solutions with other folks, be sure to shoot me an e-mail if interested.

My blog - Halaal Caterers Cape Town

My web site:Caterers Cape TownCan I simply just say what a relief to discover someone that really understands what they

are talking about over the internet. You actually understand how to bring an issue to light and make it important.

More people must look at this and understand this side

of the story. I can't believe you are not more popular because you surely possess the gift.

My site ... visit link

Wow, this piece of writing is good, my younger sister is analyzing

these kinds of things, therefore I am going to convey her.

Take a look at my webpage ... website

Great beat ! I would like to apprentice while you amend your site,

how can i subscribe for a blog site? The account helped me a acceptable

deal. I had been a little bit acquainted of this your broadcast provided bright clear idea

Here is my blog - click here

This really is a simple motion putting all attainable emphasis within the outer part

in the shoulder.

my blog post bowflex dumbbells 552

This will likely keep ample fuel and energy to elevate the large weights

and establish muscle mass mass.

My blog; visit the up coming internet page

And because you might be undergoing sure education for these the

body that you simply like, it's also possible to have some choix that you just could use when you're doing your things to do.

Look at my webpage: dumbbells for sale

Great beat ! I wish to apprentice even as you amend your web site,

how can i subscribe for a weblog website? The account

aided me a applicable deal. I had been tiny bit acquainted

of this your broadcast provided brilliant transparent concept

My blog post :: www.iplaygyms.co.za

I'm now not positive where you are getting your info, however great topic. I needs to spend some time studying much more or understanding more. Thank you for magnificent info I used to be searching for this info for my mission.

Feel free to surf to my web site ... visit us

Very well, generally you can have a set of extremely schooling applications with it.

Here is my page :: dumbbells for sale

Heya i am for the primary time here. I came across this board

and I in finding It truly helpful & it helped me out a lot.

I am hoping to provide one thing again and help others such as you aided me.

Look into my website :: bachlauf solar

It should take apprߋximately one or two clаss рeriods.

The QXL name seems to be best known in Noгway and Denmark wɦere it is a quite

a popular ecommerce portal. Gߋogle Sniping is the artwork of

development these fundamentally one web page 'snipеr' websіtes thɑt rank in the search engines princiρally neatly.

Feel free to viѕit my blog; factor quema grasa pdf