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Introduction to Embedded System

Embedded refers to something that is tied to something else, as the name implies. A computer hardware system with software embedded in it is known as an embedded system. An embedded system can function as a stand-alone unit or as a component of a larger system. A microcontroller or microprocessor-based embedded system is a system that is designed to execute a certain task. A fire alarm, for instance, is an embedded device that can only detect smoke.

There are three parts to an embedded system: hardware, software, and peripherals.

It includes software for applications.

It has a Real Time Operating System (RTOS) that supervises application software and provides a mechanism for allowing the processor to conduct a process according to schedule by following a plan to control latencies. The system's behaviour is defined by the RTOS. It establishes the rules for the program's execution. RTOS may not be present in a small embedded system.

An embedded system might thus be defined as a Microcontroller-based, software-driven, dependable, real-time control system.

Characteristics of an Embedded System

  • Embedded systems are usually single-functioned, meaning they do the same task over and over again. A pager, for example, will always work as a pager.
  • In all computing systems, design metrics are constrained, but those on an embedded system can be especially so. A measure of an implementation's features such as cost, size, power, and performance is called design metrics. It must be compact enough to fit on a single chip, fast enough to process data in real time, and power efficient enough to increase battery life.
  • Many embedded systems must react to changes in their surroundings in real time and compute specified outputs. Consider a car cruise controller, which is constantly monitoring and reacting to speed and braking sensors. It must compute accelerations and de-accelerations repeatedly in a short period of time; a delay in calculating can cause the vehicle to lose control.
  • It must be based on a microprocessor or a microcontroller.
  • It needs memory because its software is usually stored in ROM. It does not necessitate any additional memory in the computer.
  • Because its software is normally stored in ROM, it must have memory. It does not necessitate any more PC memory.
  • It must have connected peripherals in order to connect input and output devices.
  • HW-SW systems are a type of HW-SW system. More functionality and flexibility are provided by the software. The use of hardware is what allows for performance and security.

Why should you take an Embedded Course?

Embedded systems are hardware and software combinations. Embedded systems are designed to control a device, a method, or a broader system or framework. Embedded systems are all around us; they are present in every room. Embedded systems can control the basic units of a vehicle, telematics frameworks for traffic control, the chipset and programming in a set-top box for advanced TV, a pacemaker, chips in telecom switching equipment, ambient devices, and control systems embedded in nuclear reactors, to name a few examples. As a result of the embedded systems' broad appeal, job opportunities in the field are expanding.

Frequently Asked Questions

The embedded systems course is designed to provide high-quality training to software developers and those seeking a career in this field. Students will learn how to design, implement, integrate, and test sophisticated embedded systems software in this course.

Online/Offline Classroom Training: 3 Months
5-day free session

  • Microcontroller firmware engineer
  • Embedded Linux engineer
  • Embedded applications engineer
  • Embedded network engineer
  • Embedded IoT application developer
  • Cyber security embedded developer

Embedded Systems is a good course option for the electronics and telecommunications industry.

We provide 100% placement assistance to students who enrol in our specialized courses. Our Placement assistance starts with Training, Mock Interviews, Aptitude Tests, Resume preparation, and Interviews. We will provide unlimited placement assistance till the student gets placed satisfactorily.

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Freshers- Interview Questions & Answers

An embedded system is a computer system that is part of a larger system or machine. It is a system with a dedicated function within a larger electrical or mechanical system.

Computer systems that monitor, respond to, or control an external environment are known as real-time embedded systems. Actuators, sensors, and other input-output interfaces connect this environment to the computer system.

Microprocessor is managers of the resources (I/O, memory) which lie outside of its architecture

Microcontroller have I/O, memory, etc. built into it and specifically designed for control

The buses used for communication in embedded systems include

I2C: This protocol is used to communicate between numerous integrated circuits.

CAN: It's a network protocol that's utilized in cars with a centrally controlled network.

USB is a standard for communicating between a computer's processor and peripheral devices such as a mouse.

ISA, EISA, and PCI are parallel communication standard buses used in PCs, computer network devices, and other devices.

In a concurrent system, such as a multiprogramming operating system, a semaphore is an abstract data type or variable that is used to regulate access to a common resource by many processes. There are two main uses for semaphores. To be able to share a common recollection to grant others access to files.