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Embedded Linux is a type of Linux operating system/kernel that is designed to be installed and used within embedded devices and appliances.
It is a compact version of Linux that offers features and services in line with the operating and application requirement of the embedded system.
Embedded Linux, though utilizing the same Linux kernel, is quite different from the standard Linux OS. Embedded Linux is specifically customized for embedded systems. Therefore it is has a much smaller size, requires less processing power and has minimal features. Based on the requirements of the underlying embedded system, the Linux kernel is modified and optimized as an embedded Linux version. Such an instance of Linux can only run device-specific purpose-built applications.
Android OS is a type of embedded Linux, customized to be used on smartphones. Other devices on which embedded Linux is used include: