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10CS72/10IS752 Embedded Computing Systems Question Bank

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(Regulation/Scheme 2010)

Embedded Computing Systems- 10CS72/10IS752
  Seventh Semester - 7th
Computer Science Engineering - CSE
(Common to Information Science Engineering)

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1. What is an embedded system? Differentiate between a General purpose Computing system and an embedded system.

2. What are the essential structural units in (i) microprocessor (ii) embedded processor (iii) DSP?

3. What are different categories of embedded system? Give examples.

4. Differentiate between Hard and Soft real time embedded system.

5. Explain the hardware architecture of an Embedded system.

6. List different types of memory and explain its differences.

7. Differentiate between an Embedded system and Real time operating system.

8. How does DSP differ from GPP?

9. What are techniques of power and energy management in a system?

10. Explain the need of Watchdog timer and reset after the watched time.

11. Explain design process in embedded system.

12. Define design metrics in embedded system. What are the constraints of Embedded system design?

13. Mention different components that may be embedded in System on chip (SOC). Explain about any two components.


1. Compare the advantages and disadvantages of data transfer using and parallel port/devices.

2. Explain 3 modes of serial communication using serial devices with one example each.

3. Describe and compare UART, RS232, SDIO devices.

4. What are the advantages of a device port having multibyte input and output buffer?

5. What is parallel port? Explain the parallel port interfacing with keypad.

6. Explain the sophisticated interfacing features in device ports?


1. What are the different states of timer ? Why is it needed in embedded system? What are the uses of Timer device?

2. Explain use of each control bit of I2C protocol.

3. Explain the advantages of Wireless devices. How do wireless devices network using different protocols.

4. Explain USB and IEEE 1394 bus standard.

5. Explain format of bits at CAN bus.

6. Explain parallel bus using PCI and AMBA-APB bus.

7. Explain PCI and PCI/X buses.

8. What is Internet enabled systems. Explain protocols used in these systems.

9. Explain IRDA and Zigbee.


1. Explain the disadvantage of busy and wait transfer mode for the IO devices.

2. ISR can be executed in two parts. Explain?

3. Explain Interrupt Sources.

4. How is Vector address used for Interrupt sources?

5. How are vector address assigned for exception and user defined interrupts.

6. Interrupt mechanism in each processor differs from a processor familyto another.Explain?

7. Explain the classification of interrupts.

8. How identification of previously occurred interrupt from source is performed.

9. Define Context, Context switching, Latency, Deadline and vector Priority Polling Method

10. Explain Interrupt service mechanism in 68HC11 processor.

11. DMA helps in reducing the processor load by providing direct access for the IOs.

12. How do Device driver function and ISR differs. How do ISR calls differs in 80x86 and8051?

13. What are uses of software and hardware assigned priorities in Interrupt Service Mechanism.


1. Explain the programming model using DFG and CDFG. Illustrate with one example.

2. Explain with one example each about APEG, SDFG, HSDFG and resynchronization.

3. How programming task is reduced using FSM? Justify.

4. Why does program complexity increase with a reduced number of DFG’s? Explain

5. What do you mean by complete dynamic scheduling and complete static scheduling in microprocessor?


1. What is RTOS? Explain the function of RTOS

2. Explain encapsulation using semaphores and queues

3. Explain methods of saving and optimizing the memory space.

4. Explain methods of saving and optimizing the power needs

5. When do you use co operative scheduling and pre emptive scheduling?

6. Compare queue scheduling strategies for real time scheduling i.e. pre emptive and round robin scheduling

7. Explain critical section service by a pre emptive scheduler

8. Petri net based concept model

9. Define EDF, RMS, Fixed real time scheduling

10. What are the cases in which time slice scheduling helps?

11. Explain performance matrices in scheduling models for periodic and sporadic tasks

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