EDUCATIONALTECHNOLOGY

BY;JAYSON R. ACERO

EXTERNAL PARTS AND PORTS OF A

COMPUTER

EXTERNAL PARTS OF A COMPUTER

There are lots of external devices that you can connect to your computer. All external devices connect to the computer’s system unit via cables and ports (where a "port" is the slot into which you plug a cable). Unless you’re using a portable computer, you probably have several external devices attached to your computer already, including a mouse, keyboard, monitor, microphone, and speakers

 

USB and FireWire Ports

Of all the ports on a computer, USB and IEEE 1394 (a.k.a. FireWire) get all the hype. There are several reasons for this: Both are new technologies, both provide "hot-pluggable" connectivity, both provide very high-speed data transfers. The hot-pluggable part means you can just plug in some device, like a digital camera or video camera, and start using it right away. (The older ports would all require you to shut down the computer, plug in the device, restart the

PARTS OF A COMPUTER system unit is the part of a computer

that houses the primary devices that perform operations and produce results for complex calculations. It includes the motherboard, CPU, RAM and other components, as well as the case in which these devices are housed. This unit is also known as a chassis or a tower in layman's terms, and it performs the majority of the functions that a computer is required to do.

keyboard is a typewriter-style device, which uses an arrangement of buttons or keys, to act as mechanical levers or electronic switches. Following the decline ofpunch cards and paper tape, interaction via teleprinter-style keyboards became the maininput device for computers.

computer mouse is an input device that is most often used with a personal computer. Moving a mouse along a flat surface can move the on-screen cursor to different items on thescreen. Items can be moved or selected by pressing the mouse buttons (called clicking).

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 a cathode ray tube (CRT) about as deep as the screen size.

Universal Serial Bus (USB) is an industry standard developed in the mid-1990s that defines the cables, connectors and communications protocols used in a bus for connection, communication, and power supply between computers and electronic devices.

A printer is a piece of hardware for a computer. It is a device that must be connected to a computer which allows a user to print items on paper, such as letters and pictures. It can also work with digital cameras to print directly without the use of a computer.

Computer speakers, or multimedia speakers, are speakers external to a computer, that disable the lower fidelity built-in speaker. They often have a low-power internal amplifier. The standard audio connection is a 3.5 mm (approximately 1/8 inch) stereo phone connectoroften color-coded lime green (following the PC 99 standard) for computer sound cards.

headset is headphones combined with a microphone, or one headphone with a microphone. Headsets provide the equivalent functionality of a telephone handset but with hands-free operation. Headsets typically have only one speaker driver, but may also have a speaker for each ear.

The Game port is a port that is present on some PC hardware, and hardware similar to it. This port lets the connection of analog devices used to control computer games, such as joysticks.

THANK YOU!!