system unit

Flash memory

Flash memory also known as Flash RAM sometimes. It is a type of constantly-powered nonvolatile memory that can be erased and reprogrammed in units of memory called blocks. It is primarily used in memory cards, USB flash drives, MP3 players and solid-states drive for general storage and transfer of data between computers and other digital products.

Graphic cards

Graphic cards also refer to video card; it is a piece of hardware installed in a computer that is responsible for rendering the image on the computer’s monitor or display screen.

Sound cards

Sound cards also called audio card, it is a computer expansion card that facilitates the input and output of audio signals to and from a computer under control of computer programs. Typical uses of sound cards include providing the audio component for multimedia applications such as music composition, editing video or audio, presentation, education, and entertainment (games).

Network interface card (NIC)

A network interface card (NIC) is a computer circuit board or card that is installed in a computer so that it can be connected to a network. Personal computers and workstations on a local area network (LAN) typically contain a network interface card specifically designed for the LAN transmission technology, such as Ethernet or token ring. Network interface cards provide a dedicated, full-time connection to a network. Most home and portable computers connect to the Internet through as-needed dial-up connection. The modem provides the connection interface to the Internet service provider.

Plug and Play

Plug and Play (PnP) is a capability developed by Microsoft for its Windows 95 and later operating systems that gives users the ability to plug a device into a computer and have the computer recognize that the device is there.

Bus line

Information from one unit to another unit which is one stop being to the computer.

HDMI

HDMI (High Definition Multimedia Interface) is a compact audio/video interface for transmitting uncompressed digital data. It is a digital alternative to consumer analog standards, such as radio frequency (RF) coaxial cable, composite video, S-Video, SCART, D-Terminal, or VGA. HDMI supports, on a single cable, any uncompressed TV or PC video format, including standard, enhanced, and high definition video; up to 8 channels of compressed or uncompressed digital audio.

Cache memory

Cache memory is random access memory (RAM) that a computer microprocessor can access more quickly than it can access regular RAM. As the microprocessor processes data, it looks first in the cache memory and if it finds the data there (from a previous reading of data), it does not have to do the more time-consuming reading of data from larger memory.