Parts of a computer

By Nicholas Spiracopoulos

1.Inputs, Outputs of PC 2. CPU

1. Inputs and Outputs refers to the process of entering and extracting data to and from a computer. Scanners, keyboards, cameras, and mice are examples of items used for input. Monitors, printers, and speakers, are examples of output devices. Floppy disks, hard disk drives, CD-RW drives, and memory are capable of both inputting and outputting information.

2. Often referred to as the brain of a computer. The central processing unit, or CPU, with its level 1 cache memory, contains the control unit and the arithmetic/logic unit, both working together as a team to process the computer's commands. The control unit controls the flow of events inside the processor. It fetches instructions from memory and decodes them into commands that the computer can understand. The arithmetic/logic unit handles all of the math calculations and logical comparisons. It takes the commands from the control unit and executes them, storing the results back into memory. These 4 steps, (fetch, decode, execute, and store), are what's called the "machine cycle" of a computer. These 4 basic steps are how the computer runs each and every program.

1.RAM 2.Motherboard 3.Touchscreen

1. Memory that the computer readily reads from and writes to. Once the computer is turned off the RAM is erased.

2. The main circuit board that connects all of the computer's components together. Everything connected to the computer, whether inside or out, communicates either directly or indirectly with the motherboard. The CPU can be found at the heart of every motherboard.

3. A touchscreen is an elactronic visual display that the user can control through simple or multi- touch gestures by touching the screen with a special stylus/pen and-or one or more fingers. Some touchscreens use an ordinary or specially coated gloves to work while others use a special stylus/pen only. The user can use the touchscreen to react to what is displayed and to control how it is displayed

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1. Hard drive 2. optical drive 3.monitor

1. It has the long term memories in computer

2..In computing, an optical disc drive (ODD) is a disk drive that uses laser light or electromagnetic waves within or near the visible light spectrum as part of the process of reading or writing data to or from optical discs. Some drives can only read from discs, but recent drives are commonly both readers and recorders, also called burners or writers.


3. A monitor or a display is an electronic visual display for computers. The monitor comprises the display device, circuitry and an enclosure. The display device in modern monitors is typically a thin film transistor liquid crystal display (TFT-LCD) thin panel, while older monitors used acathode ray tube (CRT) about as deep as the screen size.

1. Tim Berners -Lee 2. Alan Turing

1.Sir Timothy John "Tim" Berners-Lee,knon as TimBL,is an English computer scientist , best known as the inventor of the Internet .He was born in southwest London, England, on 8 June 1955


2.Alan Mathison Turingas a British mathematician, logician, cryptanalyst, philosopher, pioneering computer scientist, mathematical biologist, and marathon and ultra distance runner. He was highly influential in the development of computer science, providing a formalisation of the concepts of "algorithm" and "computation" with the Turing machine.