EMBEDDED SYSTEMS(5th Sem)

1)Write short notes on the following hardware/units used to build embedded systems.
a) Microprocessor
b) Micro controller
c) DSP processor
d) Timer
e) Emulator.
2)Write truth table for the following types of gates and give on detailed illustration for each type of gate it can be used.
a)3-input NAND gate
b) 2-Input XOR gate
c) 2-input NOR gate
d) NOT gate.
3) What is an interrupt? Why they are required in a computer? Wxplain in detail how multiple tasks are handled by the computer.

4)Discuss the relative merits and demerits of various shared-data protection mechanisms.

5) Explain the features of the following methods of inter-task communications.
a) Semaphores
b) Queues
c) Mailboxes
d) Pipes

6) Expalin hard-real time scheduling considerations.

7) Explain the following software development tools.
a) Cross- Compiler
b) Cross assembler
c) Linker
d) Loader/locator.
8) Explain the important features of the following operating systems that are relevant to embedded systems.
a) PT Linux
b) Windows XP
c) WIN CE
d) Vx Words.