IT - Computer Hardware
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The collection of physical elements that constitutes a computer system.
9 External Hardware
- 1. Monitor
- 2. Keyboard
- 3. Microphone
- 4. Mouse
- 5. Printer
- 6. Projector
- 7. Scanner
- 8. Speaker
- 9. Jump Drive
> encompasses a display screen for video images and casing that holds it.
> refers only to devices that contain no electronic equipment other than what is essentially needed to display and adjust the characteristics of an image.
Allows you to put letters, numbers, and other symbols into a computer that often function as commands.
Allows computer users to input audio into their computers.
> a hardware input device that was invented by Douglas Engelbart in 1963 while working at Xerox PARC.
> allows an individual to control a pointer in a graphical user interface (GUI) and manipulate on-screen objects such as icons, files, and folders.
An external hardware device responsible for taking computer data and generating a hard copy of that data.
An output device that can take images generated by a computer and reproduce them on large, flat surface.
Allows a user to take an image or text and convert it into a digital file, so that a computer can read or display the file.
> a term used to describe the user who is giving vocal commands to a software program.
> a hardware device connected to a computer's sound card that outputs sound generated by the computer.
A portable storage device.
9 Internal Hardware
- 1. CPU
- 2. Drive
- 3. Fan
- 4. Modem
- 5. Motherboard
- 6. NIC
- 7. RAM
- 8. Sound Card
- 9. Video Card
> the Central Processing Unit of the computer
> handles all instructions it receives from hardware and software running on the computer.
5 Types of Drive
- 1. Blu-Ray
- 2. CD-ROM
- 3. DVD
- 4. FDD
- 5. Hard Drive
An optical disk format developed by thirteen consumer electronics and PC companies.
Blu-Ray; short for Blu-Ray Disc, BD or BD-ROM
An optical disc which contains audio or software data whose memory is read only.
CD-ROM; short for Compact Disc-Read Only Memory
A disc capable of storing large amounts of data on one disc the size of a standard Compact Disc.
DVD; short for Digital Versatile Disc or Digital Video Disc, a DVD or DVD-ROM
A computer disk drive that enables a user to save data to removable diskettes.
FDD; a Floppy Disk Drive, also called FDD or FD for short
A device used to permanently store and also retrieve information.
Hard Drive; A Hard Disk Drive (sometimes abbreviated as Hard Drive, or HD, or HDD)
A hardware device that keeps the overall computer or a computer device cool by circulating air to or from the computer or component.
A hardware device that allows a computer to send and receive information over telephone lines by converting digital data into an analog signal used on phone lines.
> a printed circuit board that is the foundation of a computer, located at the bottom of the computer case.
> allocates power to the CPU, RAM, and all other computer hardware components.
An expansion card that enables a computer to connect a network; such as a home network, or the Internet using an Ethernet cable with an RJ-45 connector.
NIC; short for Network Interface Card
A hardware device that allows information to be stored and retrieved on a computer.
RAM; Random Access Memory
An expansion card or IC for producing sound on a computer that can be heard through speakers or headphones.
Sound card connections:
- 1. Digital Out (White or Yellow)
- 2. Sound in or line in (Blue)
- 3. Microphone or Mic (Pink)
- 4. Sound out or line out (Green)
- 5. Firewire (Not pictured)
- 6. MIDI or joystick (15 pin yellow connector)
Used with surround sound or loudspeakers.
Connection for external audio sources, e.g. tape recorder, record player, or CD player.
Sound in or line in
The connection for a microphone or headphones.
Microphone or Mic
The primary sound connection for your speakers or headphones.
Sound out or line out
Used with some high-quality sound cards for digital video cameras and other devices.
Used with earlier sound cards to connect MIDI keyboard or joystick.
MIDI or joystick
An IC or internal board that creates a picture on a display.
Any new hardware better than that which it replaced or additional hardware that improves performance.
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