Definition

Noun: A circuit card is a flat, rigid board made of insulating material, onto which electronic components and conductive pathways are mounted or printed. It is designed to be inserted into a specific slot or connector within a larger electronic system, such as a computer, to add or enhance its functionality.

Usage

A circuit card is a modular component that expands or customizes the capabilities of an electronic device. It is installed by plugging it into a matching expansion slot or connector on the device's main board (motherboard).

Examples

• The technician installed a new circuit card to add a high-speed network connection to the server.
• Many older computers allowed users to upgrade their graphics by replacing the video circuit card.
• The sound stopped working, so we suspect a problem with the audio circuit card.

Advanced Usage

• "To populate a circuit card": This refers to the manufacturing process of soldering or attaching all the necessary electronic components (like chips, resistors, and capacitors) onto the blank board.
  • The factory line is used to populate the circuit cards before testing.

Variants and Related Words

• Printed Circuit Board (PCB): This is the more general term for the physical board itself, which may or may not be designed as a removable "card." All circuit cards are PCBs, but not all PCBs are circuit cards (e.g., a smartphone's mainboard is a PCB but is not removable).
• Expansion Card: A very common synonym, emphasizing its function of expanding a computer's capabilities.
• Adapter Card: Another synonym, often used when the card provides an interface or adaptation to a specific standard (e.g., a USB adapter card).
• Daughterboard: A smaller circuit card that attaches to a larger main board to provide additional features.

Synonyms

• Expansion board
• Add-in card
• Interface card

Related Phrases

• "To seat a circuit card": To install it firmly and correctly into its slot.
  • Make sure you seat the circuit card properly to avoid connection issues.
• "A faulty circuit card": A card that is not functioning correctly.
  • The system error was traced back to a faulty circuit card.

Noun

1. a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities