For the 8051 family of microcontrollers: i) Draw a representative memory map and explain how part of the data memory is able to share the same address space as the Special Function Registers in the case of the 8052. ii) When an 8051 device is switched on, which memory bank is active? Explain how you can switch to memory bank 1? iii) Explain why you should be very careful if you use a memory bank other than memory bank 0 if also using push and pop instructions. How can this issue be avoided?

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Q: Question 8: In just two sentences, what is an embedded system?

A: Dear Student, The answer to your question is given below -

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Fundamentals of Input and Output Performance

The I/O subsystem is a component of computer system design that uses buses to assist communication between the Central Processing Unit, Computer Memory/Storage, and Input and Output Devices (that is known as peripheral devices). The I/O subsystem includes disc controllers, tape drives, discs, system buses, and other devices. The I/O database application reads and writes drives using the operating system windows I/O.