Saturday, August 11, 2012

Identifying Expansion Module Cards


Expansion Card - Is a printed circuit board that can be inserted into an expansion slot of a motherboard to add additional functionality to a computer system. One edge of the expansion card holds the contacts (the edge connector) that fit exactly into the slot. They establish the electrical contact between the electronics (mostly integrated circuits) on the card and on the motherboard.The primary purpose of an expansion card is to provide or expand on features not offered by the motherboard.

VGA Card
Video cards or VGA Cards - The video card is an expansion card that allows the computer to send graphical information to a video display device such as a monitor or projector.








Sound Card
Sound card - Is a computer expansion card that facilitates the input and output of audio signals to and from a computer under control of computer programs. Many computers have sound capabilities built in, while others require additional expansion cards to provide for audio capability.

NIC Card
NIC (Network interface card) - A network interface card, more commonly referred to as a NIC, is a device that allows computers to be joined together in a LAN, or local area network. Networked computers communicate with each other using a given protocol or agreed-upon language for transmitting data packets between the different machines, known as nodes.





Modem Card

MODEM - Short name for modulator-demodulator. A modem is a device or program that enables a computer to transmit data over, for example, telephone or cable lines. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analog waves. A modem converts between these two forms.

SCSI Card
SCSI Card - Short for small computer system interface, a parallel interface standard used by Apple Macintosh computers, PCs, and many UNIX systems for attaching peripheral devices to computers. Nearly all Apple Macintosh computers, excluding only the earliest Macs and the recent iMac, come with a SCSI port for attaching devices such as disk drives and printers. SCSI interfaces provide for faster data transmission rates (up to 80 megabytes per second) than standard serial and parallel ports. In addition, you can attach many devices to a single SCSI port, so that SCSI is really an I/O bus rather than simply an interface.