A PC/104 Single Board Computer (SBC) is a compact, modular, and rugged computing solution built on the PC/104 standard. This standard defines a stackable, board-to-board bus interconnection system, allowing for a highly reliable and space-efficient embedded computer architecture. Unlike traditional motherboards, PC/104 SBCs are designed for industrial and embedded applications where durability, low power consumption, and resistance to shock and vibration are critical.
Key Specifications and Architecture
The core of a PC/104 SBC is its adherence to the PC/104 form factor (3.550" x 3.775"). These boards typically integrate a processor, memory, I/O controllers, and expansion capabilities onto a single board. Key technical details include:
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Form Factor: Standard PC/104 or extended PC/104-Plus/PCIe-104 sizes.
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Processor: Often feature low-power, fanless Intel or ARM processors, such as Intel Atom, Celeron, or Core i-series.
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Expansion: Utilizes the self-stacking PC/104 bus (ISA, PCI, or PCIe) for adding functional modules like additional serial ports, digital I/O, or networking.
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Ruggedization: Designed for extended temperature ranges and reliable operation in harsh environments.
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Power: Typically operate on low DC voltage (e.g., 5V, 12V, or 9-36V wide range).
Applications and Use Cases
PC/104 SBCs are the backbone of countless embedded systems due to their reliability and modularity. Common applications include:
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Industrial Automation: Machine control, PLCs, and HMI panels.
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Transportation: In-vehicle computing for fleet management, rail, and aviation systems.
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Medical Devices: Imaging equipment, patient monitors, and diagnostic tools.
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Military & Aerospace: Ruggedized command, control, and communication systems.
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Digital Signage & Kiosks: Reliable media playback in public spaces.
Comparison: PC/104 vs. Other Form Factors
| Feature | PC/104 SBC | Mini-ITX Motherboard | COM Express Module |
|---|---|---|---|
| Form Factor | 3.55" x 3.775" (Stackable) | 6.7" x 6.7" (Fixed) | Core module on carrier board |
| Ruggedness | Excellent (Designed for harsh env.) | Good (Commercial/Consumer) | Good to Excellent |
| Expansion | Stackable Modules (Inherently modular) | PCI/PCIe slots (Requires case) | Via custom carrier board |
| Design Flexibility | High (Mix-and-match modules) | Low (Fixed I/O) | Very High (Custom carrier) |
| Ideal For | Embedded, Space-constrained, Rugged | Desktop, Light Industrial | Custom embedded designs |
Thinvent's PC/104 Embedded Solutions
Thinvent offers a range of industrial computing solutions that embody the principles of reliability and compact design essential for PC/104 applications. While our product line includes highly integrated systems like the Aero Mini PC series, the engineering focus on fanless operation, wide-temperature components, and robust I/O aligns with the needs of developers seeking PC/104-like durability in a pre-configured form factor. For projects requiring extreme modularity, our technical team can provide guidance on integrating core computing power with specialized expansion hardware to meet complex system requirements.
