Webopedia on Google+Webopedia on TwitterWebopedia on FacebookTech Bytes Blog
Main » TERM » P »

printed circuit board

printed circuit board

)Sometimes abbreviated PCB, a thin plate on which chips and other electronic components are placed. Computers consist of one or more boards, often called cards or adapters. Circuit boards fall into the following categories:

  • motherboard : The principal board that has connectors for attaching devices to the bus. Typically, the mother board contains the CPU, memory, and basic controllers for the system. On PCs, the motherboard is often called the system board or mainboard.
  • expansion board : Any board that plugs into one of the computer's expansion slots. Expansion boards include controller boards, LAN cards, and video adapters.
  • Daughtercard :Any board that attaches directly to another board.
  • controller board: A special type of expansion board that contains a controller for a peripheral device. When you attach new devices, such as a disk driveor graphics monitor, to a computer, you often need to add a controller board.
  • Network Interface Card (NIC) :An expansion board that enables a PC to be connected to a local-area network (LAN).
  • video adapter: An expansion board that contains a controller for a graphics monitor.
  • Printed circuit boards are also called cards.







    TECH RESOURCES FROM OUR PARTNERS
    DID YOU KNOW?
    5 Best Valentines Day Ideas for Open Source Romantics

    Because nothing says "I Love You" Like an open source app. Read More »

    Guarding your Data against Cyber Attacks

    In this new era of heightened stakes comes an increased need for a comprehensive security strategy. Let's take a look at how cyber-threats have... Read More »

    The Great Data Storage Debate: Is Tape Dead?

    Tape clearly is on the decline. But remember, legacy systems can hang for a shockingly long time. Read More »

    QUICK REFERENCE
    Network Fundamentals Study Guide

    A network is a group of two or more computer systems or devices, linked together to share resources, exchange files and electronic communications.... Read More »

    Computer Architecture Study Guide

    This Webopedia  study guide describes the different parts of a computer system and their relations. Read More »

    Webopedia Polls

    The trend for the past two years has been for shoppers to spend more online during the holiday season. How do you typically shop for holiday... Read More »