The embedded system is based on the performance and functional requirements. The embedded system is divided into four major categories.

  • Stand-alone embedded systems:- The autonomous embedded system does not require a host system like a computer, but it works all by itself independently. It receives input from the input ports either in digital form or analog form and transfers the data to give the resulting data through the connected device which is responsible for controlling the associated devices. Some examples of a stand-alone embedded system include mp3 players, digital cameras, video games, and temperature measurement systems.
  • Real-time embedded systems:- This system requires an output in a particular time frame. It follows the time deadlines for the completion of the set tasks. The real-time application embedded systems are further classified into a soft real-time system and hard real-time system.
  • Networked embedded system:- This type of embedded system is related to networks which can access the resources. It is connected through the LAN, WAN, or the internet. The connection can be wired or even wireless. The embedded system which is networked is the most popular today; wherein all the embedded devices are controlled by the web browser and protected by the protocols IP/TCP.
  • Mobile Embedded Systems:- Mobile embedded systems are much more preferred than others. These are portable devices like mobile phones, digital cameras, wireless mp3 players, etc. the only limitation with this embedded system is that it has limited memory.

Note: Embedded systems uses are very general question in Embedded systems interview questions.

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