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What Is a Computer

Computers come in the different shapes and sizes, designed for different purposes, but have the same functions to complete a certain task.

A computer is an electronic device, operating under the control of instruction stored in its memory unit, that can accept data(input) and manipulate data according to specified rules (process), produce info (output) from the processing information.

The computer is made of of many different components known as hardware. These in include the CPU which is the brain of the computer taking all the information and processing it. Then comes the Motherboard which acts as a base for all the components. Allowing them to interact with each other in a simplified manner. The video card is a device that interputs video singals and outputs them to a moniter. Video Cards are now considered a major part of the computer, for graphic artist and multimedia creators. They take complaticated video renders through there own GPU, leaving the CPU to preform much more intense processes. The Hard Drive acts as the central storage point in a computer, holding huge amounts of data for later use and editing. They, on average, are 40-60 gigabytes in home computers, but can hold more than 160gb. The Memory or RAM (Random Access Memory) is a extrememly fast compnent that allows the computer to upload data to it for quick and immedite access (but is cleared on reset).

As important as the components inside the computer are so are the ones on the out side,as they allow us to interact with the computer. Extrenal devices, known as Periheral, are all different types of things. The keyboard which is one of most important parts of a computer
Force can move any object, from and grain of sand to entire planets. There are different types of forces such as voltage, pressure, and tempature. Systems that use these forces are Mechincal, Electrical, Fluid, and Thermal. Force is the prime mover of objects.

In thermal force, heat is used to move objects. A hot air ballon is a good example of a Thermal System. Gas is burned to create heat which rises up in to the cloth ballon which captures it and always the basket and ballon to rise up ward because of the force of the heat moving it. Thermal Force is also used in creating power. In a Nuclear Power plant the massive amounts of heat created from the uranium is used to heat water which creates steam that moves turbines.

In the Fluid system pressure is used to move liquids through lines. This is used in cars frot he brakes system. When you press on the brake pedle it forces brake fluid to move in the lines creating pressure that cause the brakes to close on the disc (or in drum brakes pressure forces metal plates to seize on each other). Hydrolics also operate on this basic idea. On construction equiment hydrulics are used because of their ability to lift and move massive amounts of weight, and their simpple design. A hydrolic is a cylinder with a piston in side of it. Water is then forced forced in the cylinder using the piston out. What makes them so strong is that instead of weak lines it uses thick metals allowing for much higher pressure.

The Electric System uses voltage to move a current of eletrons in power lines. Much like pressure in a line, voltage moves the electricty around. Of course like liquid pressure, force is decreased dpeneding on length of the system. So to solve this they use power stations to boast voltage again
Chinese people have known how to tie knots with cord ever since they began tying animal pelts to their bodies to keep out the cold thousands of years ago. With the advance of civilization, Chinese people used knots for more than just fastening and wrapping. Knots were also used to record events, and some knots had purely ornamental functions. In 1980, some dedicated connoisseurs collected an arranged the decorative yet practical knots that have been passed down through the centuries in China. After studying the structures of these knots, the devotees set about creating new variations and increasing the decorative value of the knots. These exquisitely symmetrical knots which come in so many forms are as profound as the great cultural heritage of the Chinese people. The knots have thus been collectively named Chinese Macramé.