Embedded Systems Q1

An embedded system must have

• hard disk

• processor and memory

• operating system

• processor and input-output unit(s)

An embedded system hardware can

• have a microprocessor or microcontroller or single purpose processor

• have digital signal processor

• one or several microprocessor or microcontroller or digital signal processor or single purpose processors

• not have a single purpose processor

An embedded system has RAM memory

• for storing the variables during program run, stack and input or output buffers, for example, for speech or image

• for storing all the instructions and data

• for storing the programs from external secondary memory

• for fetching instructions and data into cache(s)

8051 microcontrollers are manufactured by which of the following companies

• Atmel

• Philips

• Intel

• All of the mentioned

If we push data onto the stack then the stack pointer

• increases with every push

• decreases with every push

• increases and decreases with every push

• none of the mentioned

Embedded Systems communicate with the outside worldthrough

• Peripherals

• Processors

• OS

• Microcontrollers

Which is the most commonly used language(s) used in embedded system?

• C

• JAVA

• COBOL

• Both A and C

______ provides a simulation of all aspects of the hardware

• Emulator

• ICD

• ICE

• HLL

What us an In-Circuit Emulator

• It replaces the microprocessor with a simulated equivalent

• It is a hardware device that connects to the microprocessor

• It is an embedded application with real time operating system

• A tool that allows external debugging

Embedded middleware sits between

• embedded application and operation system

• kernel and real time operating system

• embedded application and real time operating system

• kernel and the real time operating system