Expansion card

An expansion card is a circuit board inserted into a computer’s expansion slot to add or upgrade capabilities such as graphics, networking, or sound.

Peripheral Component Interconnect Express: Peripheral Component Interconnect Express is a high-speed serial computer expansion bus standard. It is the common modern interface linking expansion cards to a computer’s processor and memory.
Graphics card: A graphics card is an expansion card that generates and processes images for display. It adds specialized hardware for rendering graphics and driving displays.
Industry Standard Architecture: Industry Standard Architecture was an early expansion bus used in IBM-compatible personal computers. ISA slots supported many of the first widely used PC expansion cards.
Onboard graphics: Onboard graphics is graphics processing hardware integrated into a motherboard or processor. It provides graphics without requiring a separate graphics expansion card.
IBM Personal Computer: The IBM Personal Computer is the 1981 desktop computer whose open architecture influenced the PC industry. Its expansion slots helped establish add-in cards as a standard way to extend personal computers.
Expansion slot: An expansion slot is a motherboard connector designed to accept an expansion card. The slot provides the card’s physical connection and interface to the system.
Network interface card: A network interface card connects a computer to a wired or wireless network. It adds network connectivity through a dedicated hardware adapter.
Micro Channel architecture: Micro Channel architecture was IBM’s proprietary computer bus introduced with its PS/2 systems. Its incompatibility with ISA shaped the early competition over PC expansion standards.
USB adapter: A USB adapter is an external device that adds a connection or function through a USB port. It can add capabilities without occupying an internal expansion slot.
IBM PC compatible: An IBM PC compatible is a computer designed to run software and use hardware compatible with IBM’s PC architecture. Shared expansion standards helped compatible computers support a broad ecosystem of cards.

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