Fanless embedded PCs avoid dust ingress whilst operating in industrial environments. The fanless operation also increases shock resistance, reliability and durability, plus extended temperature ranges can be achieved. These industrial pcs are quieter than computers using fans and in industries such as food and pharma, the fanless operation avoids the circulation of dirt and pathogens around the environment. Fanless computers use clever heat-sink designs instead of a fan to remove excessive heat from the CPU and other components.