An embedded system is a computer type that is only programmed to perform specific tasks and is complicated to reprogram, if not impossible. What we now think of as an embedded system were some of the earliest computers, as they only did a single job, like resolving a specific problem. Nowadays, however, an embedded system derives its name from the fact that another computer it is found.
Physical Benefits:
Since an embedded system often executes the same basic tasks, software updates, like adding extra memory or storage space, are typically needed. In contrast, there is also usually no need for individuals to be able to navigate the system physically. As a consequence, housing an embedded system in a device such as a set-top box that is not designed for consumer service is much easier.
Dedicated Tasks:
Unlike a full-blown system, an embedded task typically executes only one task at a time. For instance, a cable box may be tasked with taking the input signal from the network, adjusting to a specific website, and outputting the signals in a format that can be understood by a television set. The box will do it without interruption been committed to this project. It can be crucial in many contexts to work continuously; a set-top box, for example, needs to process the image regularly to ensure that there are unseen bugs.
Operating System:
Since an embedded system typically operates a basic function that does not alter, the operating system specifications are less onerous. An embedded system is always able to operate and may not require updating an older or less advanced operating system. For example, Devices ranging from ATMs to airplane seat-back television displays have been able to run a special version of Windows XP for years with no issues when Microsoft started to remove system support.
Specifications & Costs:
Hardware specifications for embedded systems are typically lower than those of complete Desktop computers. Focusing on a single task, for instance, means that multi-core processors are typically not required. It may be able to operate with slow processors depends on the intent of the device, so there is no need to provide excess power for the possibility of the more demanding tasks such as video editing. In turn, These reduced process requirements will reduce costs substantially.
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