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History Of The Computer Essay

1409 words - 6 pages

Every day, millions of people use many forms of computers. From laptops to iPods™, they are used for many purposes. There are many, many things you could do with the power of a computer, but what really defines a computer and what composes it? The computer, a simple binary machine that was imagined by Charles Babbage now using many important parts, has progressed over many years to become the best invention ever to be conceived.
In definition, computers are devices that when given instructions and raw data (input), will give out finalized data through calculations (output) by the use of hardware and software. The definition derives from a name given to people that work out math problems. Albeit the computer is technically a calculator, it can do much more. For example, computers can: write documents, access multimedia, use the internet, be reprogrammed for other purposes, and much more. Forms of computers include desktops (meant as a stationary setup), laptops (portable computers that can fold in or out with an LED screen), media devices (for example, iPods™, smart phones), and tablet computers (comes in a touchscreen slate or a laptop form)
There are many things that a computer can do, but what is inside it? For a computer to operate and function there are six required parts needed to do so: the central processing unit (CPU), the printed circuit board (PCB or more commonly known as the motherboard), a graphics processing unit (GPU), a hard disk drive (HDD or just “hard drive”), random access memory (RAM), and a power supply unit (PSU or simply “power supply”) which powers the computer.
The CPU, which stands for “central processing unit”, functions as the brain of the computer. It is the most essential part of the computer. Two well-known CPU manufacturers: AMD and Intel. Inside a CPU is a silicon-chip that is comprised of millions of circuits. These silicon-chips are manufactured in a dust-free factory to keep the chip intact so it won’t work unexpectedly. CPUs can generate heat and will burn out if there isn’t a heat sink installed. Heat sinks take away the heat that is radiated from a CPU. They can cool CPUs by the use of fans or by water coolers (similar concept to a car’s radiator) which circulates water through tubes to cool the CPU.
PCBs (“printed circuit board”), more commonly known as a “motherboard”, work as the backbone of the computer. This is because they hold all the parts together and connect them. When buying computer parts for building, hard drives do not come pre-installed with an OS. That’s where the BIOS comes in , the Basic Input/Output System (which is pre-installed on the motherboard). The BIOS allows the user to install an OS or help configure hardware. There are many motherboard manufacturers out there such as Asus and Gigabyte who design their own BIOS for their own motherboards.
Computers need a display output for users to see what they are doing with it. The part of the computer that gives this output is known as...

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