[WEBINAR] The New Normal: Dealing with the Reality of an Unsecure World


Definition - What does Motherboard mean?

A motherboard is a computer’s main circuit board, and it includes the following attached to a fixed planar surface:

  • Input/output ports
  • Peripheral connections
  • PCI expansion slots
  • Bus and power connectors
  • Heat sinks and mounting points for fans and major components, including the central processing unit (CPU) and optional coprocessors
  • Supporting chipset for CPU, bus and external components
  • BIOS
  • Memory sockets for RAM, ROM and cache
  • Interconnecting circuitry

Additionally, daughterboards and mezzanine cards, installed on a second level, may be plugged into the motherboard. A daughterboard may be the actual motherboard and/or card or board plugged into the motherboard.

The motherboard is also referred to as the main board (mobo), system board or planar board. Apple computers refer to the motherboard as the logic board.

Techopedia explains Motherboard

The Advanced Technology (AT) motherboard is the most common and is based on the IBM AT motherboard - a design improved with the Advanced Technology Extended (ATX) specification.

Components such as external storage, video display, sound controllers and peripheral devices may be attached to the motherboard. However, these components are increasingly integrated into the motherboard. For example, disk controllers, graphics controllers supporting 2D/3D graphics and TV input, sound card output, fast Ethernet network controller, USB 2.0 controller (with up to 12 USB ports), an infrared data communication IrDA controller (for mobile phones and printers) and temperature, voltage, and fan-speed sensors all may be contained within the motherboard.

Techopedia Deals

Connect with us

Techopedia on Linkedin
Techopedia on Linkedin
"Techopedia" on Twitter

Sign up for Techopedia's Free Newsletter!

Email Newsletter

Join thousands of others with our weekly newsletter

Free Whitepaper: The Path to Hybrid Cloud
Free Whitepaper: The Path to Hybrid Cloud:
The Path to Hybrid Cloud: Intelligent Bursting To Amazon Web Services & Microsoft Azure
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.