An operating system (OS) is the most critical piece of software found on a computer. The operating system allows the system to deal with key tasks, such as the management of memory and processing. This makes operations possible and builds a foundation for applications to run on.
In addition, the operating system allows users to interact with hardware. Through the use of a graphic user interface (GUI), an end user can interact with the operating system, and by extension the hardware. A computer without an operating system cannot function.
An embedded OS is the operating system that has been designed for use with an embedded computer system. Such systems are designed to run as efficiently as possible, using the least amount of resources to accomplish tasks. Embedded OSs are designed to be reliable, but they are not versatile. They are designed usually to work with specialized applications and hardware to accomplish specific tasks. Often, these systems are running light hardware in terms of RAM (random access memory) and ROM (read-only memory).
Applications of the OS
The requirements of the user are a primary focus in web architecture. Making sure a site meets the needs of a client and has a strong usability are keys to the approach. Since easy access to needed information is a priority for users, this approach can lead to intuitive design choices. Applications are programs that run on top of an OS.