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Introduction to Embedded Systems

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Questions and Answers

What is an embedded system?

A system with software embedded into computer-hardware for general-purpose applications

A system with dedicated hardware for general-purpose applications

A system with software embedded into computer-hardware for dedicated applications (correct)

A system with dedicated hardware for dedicated applications

Where is the software usually implanted in an embedded system?

RAM (Random Access Memory)

ROM (Read Only Memory) or flash (correct)

Solid-state drive

Hard disk drive

What is the heart of an embedded system?

Graphics Processing Unit (GPU)

Microprocessor

Microcontroller (correct)

Central Processing Unit (CPU)

What does an embedded system typically have, in terms of hardware and software?

Dedicated hardware and software for specific applications Signup and view all the answers

How is an embedded system different from a general-purpose computer?

It has software embedded into computer-hardware for dedicated applications Signup and view all the answers

What is the main purpose of a Universal Asynchronous Receiver Transmitter (UART) in an embedded system?

Establish a communication channel between a microcontroller and a computer Signup and view all the answers

What distinguishes High-level Data Link Control (HDLC) in an embedded system?

Organizes data into frames for transmission across a network Signup and view all the answers

Which type of communication does not require strict synchronization in an embedded system?

Asynchronous communication from serial devices Signup and view all the answers

What is the function of advanced I/O Serial high-speed buses like ISA, PCI, PCI-X, and cPCI in an embedded system?

Facilitate high-speed data transfer between I/O devices and the processor Signup and view all the answers

In Universal Asynchronous Receiver Transmitter (UART) communication, how do two UARTs communicate with each other?

Directly with only two wires needed for data transmission Signup and view all the answers

Study Notes

Embedded System Overview

An embedded system is a combination of computer hardware and software designed to perform a specific task.
In an embedded system, the software is usually implanted in a microcontroller or a system-on-chip (SoC).

Embedded System Components

The heart of an embedded system is a microcontroller or a microprocessor.
An embedded system typically has specialized hardware and software components, tailored to perform a specific function.

Difference from General-Purpose Computers

An embedded system is different from a general-purpose computer, which is designed to perform multiple tasks.

Communication Components

The main purpose of a Universal Asynchronous Receiver Transmitter (UART) is to facilitate serial communication between devices.
High-level Data Link Control (HDLC) is a protocol that provides error-free data transfer and flow control in an embedded system.
Asynchronous communication does not require strict synchronization in an embedded system.
Advanced I/O Serial high-speed buses like ISA, PCI, PCI-X, and cPCI in an embedded system provide high-speed data transfer between devices.

UART Communication

Two UARTs communicate with each other by transmitting and receiving data serially, one bit at a time, using a transmitter and a receiver.

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Description

Test your knowledge on the concept of embedded systems, including the meaning of embedded systems, the role of microcontrollers, real-life applications, and the differences between microcontrollers and microprocessors.