Pyramid Diagram. Five level pyramid model

Definition
Your computer is a programmable digital camera designed to accept data, perform recommended mathematical and logical operations at high speed, and screen the results of the functions, all under the control of software. Mainframes, desktop and laptops, tablets and smartphones are a few of the various types of computer systems. An electric machine which helps in solving problems efficiently. It solves problems matching to instructions directed at it by the computer individual called programs or software. It is a digital machine(that uses binary digits) found in all field

Automation
Most humans have a problem with math. Showing this, try doing 584 x 3,220 in your mind. It is hard to keep in mind all the steps! People made tools to help them remember where these 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 were required to make change every day in her brain or with a bit of paper. That got lots of time and made errors. So, people made calculators that have those same things again and again. This part of computer record is named the "history of robotic calculation," which really is a fancy saying for "the annals of machines that make it easy for me to do this same maths problem over and over without making faults."The abacus, the slip rule, the astrolabe and the Antikythera system (which schedules from about 150-100 BC) are types of automated calculation machines.

Programming
People do not need a machine that could do a similar thing again and again. For instance, a music field is a machine that plays the same music over and over again. Some people wanted to be able to inform their machine to do various things. For example, they wished to tell the music package to experiment with different music each and every time. They wished to be able to program the music container- to order the music container that can be played different music. This part of computer record is called the "history of programmable machines" which really is a fancy term for "The history of machines that I can order to do various things if I learn how to speak their vocabulary."Among the first examples of this is built by Hero of Alexandria (c. 10-70 Advertising). He built a mechanised movie theater which performed a play long lasting ten minutes and was controlled by a intricate system of ropes and drums. These ropes and drums were the words of the machine- they advised what the machine did so 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 created by Al-Jazari in 1206, is the first known programmable analog computer. The space of night and day could be tweaked every day to be able to take into account the changing measures of day and night throughout the year. Some count up this daily adjustment as computer programming.Others say the first computer was created by Charles Babbage. Ada Lovelace is known as to be the first programmer.

The Processing Era
By the end of the center Age ranges, people in Europe thought math and executive were more important. In 1623, Wilhelm Schickard made a mechanical calculator. Other Europeans made more calculators after him. These were not modern pcs because they could only add, subtract, and increase- you cannot change what they do to make sure they are take action like play Tetris. Because of this, we say they were not programmable. Now technical engineers use computers to design and plan.In 1801, Joseph Marie Jacquard used punched newspaper cards to share his textile loom what kind of style to weave. He might use punch cards to see the loom how to proceed, and he could change the punch credit cards, this means he could program the loom to weave the structure he wanted. This means the loom was programmable.Charles Babbage wanted to make a similar machine that can estimate. He called it "The Analytical Engine".[8] Because Babbage did not can pay for and always improved his design when he had a much better idea, he never built his Analytical Engine motor.As time went on, pcs were used more. People get bored easily doing a similar thing over and over. Imagine spending your life writing things down on index credit cards, saving them, and then needing to go find them again. The U.S. Census Bureau in 1890 had hundreds of individuals doing just that. It was expensive, and information took quite a while. Then an engineer exercised how to make machines execute a lot of the work. Herman Hollerith developed a tabulating machine that would automatically accumulate information that the Census bureau accumulated. The Processing Tabulating Recording Firm (which later became IBM) made his machines. They leased the machines instead of selling them. Creators of machines experienced long helped their users understand and repair them, and CTR's technical support was especially good.Due to machines such as this, new ways of speaking with these machines were invented, and new types of machines were developed, and finally the computer as we know it was born.

Analog and Digital Computers
Within the first fifty percent of the 20th hundred years, scientists began using computers, largely because scientists experienced a great deal of math to determine and wished to spend more of their own time thinking about technology questions rather than expending hours adding numbers jointly. For example, if indeed they had to kick off a rocket dispatch, they needed to do a great deal of math to make sure the rocket worked well right. So they come up with computers. These analog computers used analog circuits, which made them very difficult to program. Inside the 1930s, they developed digital pcs, and soon made them simpler to program. However this is false as much consecutive makes an attempt have been made to bring arithmetic logic to l3.Analogue pcs are mechanical or electronic devices which solve problems. some are being used to control machines.