I'd go so far as to add a 5th.. Computer has a brain too. INPUT DEVICES JOYSTICK - is often used in playing computer games. It consists of a large box called the system unit that contains most of the essential components. The brain of the computer is the Central Processing Unit (CPU) . How to Disassemble a Computer: In this Instructable, I will give a full documentation of how to disassemble a desktop PC, for parts. The power supply. Personal computer (PC), a digital computer designed for use by only one person at a time. Parts of a Computer The Components or Parts of a Personal Computer. It then processes the instructions received and produces an output of usable information. Personal computers fall into several categories, differentiated mainly by their sizes: 1 A desktop computer is designed to be used at a desk and seldom moved. Computer Parts. Desktop and laptop computer can typically be broken down into 6 basic parts or categories. DIGITAL CAMERA - lets you take pictures. The 4 main parts of a computer are Processor, Main Board, Memory and Video. PROCESSING DEVICE When you think, you use your brain. Processor (CPU) The CPU or Central Processing Unit can be thought of as the brain of the computer. A computer is designed to accept instructions or commands through input devices. The specific computer that I will demonstrate with is an HP Media Center PC m7640n with a dead motherboard. In most cases (pardon the pun) the case will be tucked away out of sight unless you REALLY need to access your optical drive often enough to make this a consideration. A CPU is responsible for handling most of the computational work done by your computer. Every computer is different, but this i… About The Basic Parts of a Computer with Devices October 22, 2013 InformationQ.com Basic information of computer , Computer 64 A computer is an electronic machine that processes data. PROCESSING DEVICE 9. It tells the other parts of the computer what to do 10. 8. A typical personal computer assemblage consists of a central processing unit (CPU), which contains the computer’s arithmetic, logic, and control circuitry on an integrated circuit; two types of computer This information can also be stored using a number of storage devices available.