Motherboard
The main circuit board in computers and other expandable systems, holding core components like the CPU and memory.
The motherboard is the central nervous system of a computer. It's a large printed circuit board that connects all the essential parts, like the processor (CPU), memory (RAM), and graphics card. Think of it as the foundation that allows everything else to communicate and work together.
For example, when you type on your keyboard, the signal travels through the motherboard to the CPU, which processes the input and sends it back to your screen, all via connections on this main board.
The motherboard is the primary printed circuit board (PCB) in a computer or other expandable system. It houses and interconnects critical components such as the central processing unit (CPU), memory modules (RAM), expansion slots (like PCIe), and chipset. The chipset manages data flow between the CPU, memory, and peripherals, while various connectors and buses facilitate communication between all attached devices.
This term appears because frontier AI labs are increasingly focused on the underlying hardware infrastructure required for AI development and deployment. Projects like turning old phones into computing platforms highlight the importance of efficient and novel hardware configurations, where the motherboard plays a fundamental role.
- A low-carbon computing platform from your retired phonesGoogle · Google Research Blog ·
- Google Gemini
- Google's projects, like the low-carbon computing platform from old phones, rely on understanding and utilizing existing hardware, including motherboards, for AI infrastructure.
The term 'motherboard' emerged with the development of modular personal computers in the late 1970s and early 1980s. It was coined to describe the main board that 'mothered' or hosted all the other essential components. Source ↗
Open your computer's case (if it's a desktop) and locate the largest circuit board inside. You'll see slots for memory, the CPU heatsink, and various connectors. This is the motherboard. If you have a laptop, you can find diagrams online by searching for your specific model to see its internal layout.
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Questions people ask
- What does the motherboard do?
- The motherboard connects all the main components of a computer, allowing them to communicate with each other and function as a system.
- Can I upgrade my motherboard?
- Yes, you can upgrade a motherboard, but it often requires replacing other compatible components like the CPU and RAM as well.
First seen on Subvolts Jun 12, 2026. Updated Sep 15, 2026. Written by an AI model from the items above and reviewed against them weekly; report an error.