BC 101 COMPUTER APPLICATION: August 2012

Definition
A computer is a programmable digital camera designed to accept data, perform approved mathematical and rational operations at broadband, and display the results of the operations, all under the control of software. Mainframes, desktop and laptop computers, tablets and smartphones are some of different types of personal computers. An electric machine which assists with solving problems efficiently. It solves problems according to instructions given to it by the computer consumer called programs or software. It is an electronic machine(that uses binary digits) found in all field

Automation
Most humans have trouble with math. Showing this, try doing 584 x 3,220 in your head. It really is hard to remember all the steps! People made tools to help them remember where they were in a mathematics problem. The other problem people have is that they have to do the same problem again and again and once more. A cashier needed to make change every day in her mind or with a bit of paper. That took a lot of time and made problems. So, people made calculators that did those same things over and over. This part of computer history is named the "history of automated calculation," which really is a fancy phrase for "the history of machines which make it easy for me to do this same maths problem over and over without making faults."The abacus, the glide guideline, the astrolabe and the Antikythera device (which schedules from about 150-100 BC) are types of automated calculation machines.

Programming
People do not need a machine that would do a similar thing again and again. For instance, a music package is a machine that plays the same music again and again. Some people wanted to have the ability to inform their machine to do different things. For example, they wanted to inform the music pack to play different music every time. They wanted to have the ability to program the music field- to order the music box to try out different music. This part of computer background is named the "history of programmable machines" which really is a fancy expression for "The history of machines that I can order to do various things if I learn how to speak their terms."Among the first examples of this is built by Hero of Alexandria (c. 10-70 AD). He built a mechanised theatre which performed a play lasting ten minutes and was handled by a complicated system of ropes and drums. These ropes and drums were the terminology of the machine- they advised what the machine did and when. Some people claim that is the first programmable machine.Historians disagree which early machines are "personal computers". Many say the "castle clock", an astronomical clock invented by Al-Jazari in 1206, is the first known programmable analog computer. The space of day and night could be altered every day to be able to account for the changing lengths of day and night over summer and winter. Some count number this daily modification as education.Others say the first computer was made by Charles Babbage. Ada Lovelace is considered to be the first programmer.

The Processing Era
At the end of the center Age range, people in European countries thought mathematics and engineering were more important. In 1623, Wilhelm Schickard made a mechanical calculator. Other Europeans made more calculators after him. These were not modern computer systems because they could only add, subtract, and increase- you could not change what they have to make them take action like play Tetris. Because of this, we say these were not programmable. Now engineers use computers to create and plan.In 1801, Joseph Marie Jacquard used punched newspaper cards to see his textile loom what kind of pattern to weave. He could use punch cards in order to the loom what to do, and he could change the punch cards, this means he could program the loom to weave the routine he wanted. This means the loom was programmable.Charles Babbage wished to make a similar machine which could assess. He called it "The Analytical Engine".[8] Because Babbage did not have enough money and always changed his design when he previously an improved idea, he never built his Analytical Engine unit.As time continued, pcs were used more. People get weary easily doing the same thing again and again. Imagine spending your daily life writing things down on index cards, keeping them, and then having to go see them again. The U.S. Census Bureau in 1890 got hundreds of people doing that. It was expensive, and information took a long time. Then an engineer worked out how to make machines execute a lot of the work. Herman Hollerith created a tabulating machine that could automatically add up information that the Census bureau accumulated. The Processing Tabulating Recording Company (which later became IBM) made his machines. They leased the machines instead of selling them. Designers of machines had long helped their users understand and repair them, and CTR's tech support was especially good.Due to machines such as this, new means of talking to these machines were created, and new types of machines were created, and finally the computer as we realize it was born.

Analog and Digital Computers
Inside the first 1 / 2 of the 20th hundred years, scientists began using computers, mostly because scientists got a lot of math to figure out and wanted to spend more of their own time thinking about technology questions rather than spending hours adding numbers jointly. For example, if indeed they had to establish a rocket ship, they needed to do a whole lot of math to make sure the rocket functioned right. So they put together computers. These analog computers used analog circuits, which made them very hard to program. Inside the 1930s, they developed digital computers, and soon made them much easier to program. Financial firms false as many consecutive makes an attempt have been made to bring arithmetic logic to l3.Analogue computers are mechanical or gadgets which solve problems. some are being used to control machines.