- What are the various registers in 8085? - Accumulator register, Temporary register, Instruction register, Stack Pointer, Program Counter are the various registers in 8085 .
- In 8085 name the 16 bit registers? - Stack pointer and Program counter all have 16 bits.
- What are the various flags used in 8085? - Sign flag, Zero flag, Auxillary flag, Parity flag, Carry flag.
- What is Stack Pointer? - Stack pointer is a special purpose 16-bit register in the Microprocessor, which holds the address of the top of the stack.
- What is Program counter? - Program counter holds the address of either the first byte of the next instruction to be fetched for execution or the address of the next byte of a multi byte instruction, which has not been completely fetched. In both the cases it gets incremented automatically one by one as the instruction bytes get fetched. Also Program register keeps the address of the next instruction.
- Which Stack is used in 8085? - LIFO (Last In First Out) stack is used in 8085.In this type of Stack the last stored information can be retrieved first.
- What happens when HLT instruction is executed in processor? - The Micro Processor enters into Halt-State and the buses are tri-stated.
- What is meant by a bus? - A bus is a group of conducting lines that carriers data, address, & control signals.
- What is Tri-state logic? - Three Logic Levels are used and they are High, Low, High impedance state. The high and low are normal logic levels & high impedance state is electrical open circuit conditions. Tri-state logic has a third line called enable line.
- Give an example of one address microprocessor? - 8085 is a one address microprocessor.
- In what way interrupts are classified in 8085? - In 8085 the interrupts are classified as Hardware and Software interrupts.
- What are Hardware interrupts? - TRAP, RST7.5, RST6.5, RST5.5, INTR.
- What are Software interrupts? - RST0, RST1, RST2, RST3, RST4, RST5, RST6, RST7.
- Which interrupt has the highest priority? - TRAP has the highest priority.
- Name 5 different addressing modes? - Immediate, Direct, Register, Register indirect, Implied addressing modes.
- How many interrupts are there in 8085? - There are 12 interrupts in 8085.
- What is clock frequency for 8085? - 3 MHz is the maximum clock frequency for 8085.
- What is the RST for the TRAP? - RST 4.5 is called as TRAP.
- In 8085 which is called as High order / Low order Register? - Flag is called as Low order register & Accumulator is called as High order Register.
- What are input & output devices? - Keyboards, Floppy disk are the examples of input devices. Printer, LED / LCD display, CRT Monitor are the examples of output devices.
- Can an RC circuit be used as clock source for 8085? - Yes, it can be used, if an accurate clock frequency is not required. Also, the component cost is low compared to LC or Crystal.
- Why crystal is a preferred clock source? - Because of high stability, large Q (Quality Factor) & the frequency that doesn’t drift with aging. Crystal is used as a clock source most of the times.
- Which interrupt is not level-sensitive in 8085? - RST 7.5 is a raising edge-triggering interrupt.
- What does Quality factor mean? - The Quality factor is also defined, as Q. So it is a number, which reflects the lossness of a circuit. Higher the Q, the lower are the losses.
- What are level-triggering interrupt? - RST 6.5 & RST 5.5 are level-triggering interrupts.
Second Year
Second Year (10)
Hi all,
I am uploading the PDf version of Fundamentals of Database Systems, 4th Edition.
You can download the ebook on the following link :
thanks
Tagged under
Hi all,
For those who do not like physical books, try this new way : The virtual book.....Looks interesting to me lets see how u guys like it
Tagged under
Hi all,
I created a small e Book for all to read the DBMS korth book online in a slightly different way....the Engineered way...Click the title of this post to read
The viva questions on data structures can be read on the following link http://datastructures-syam.blogspot.com/2009/04/viva-questions.html
The Following are the VIVA question for PCOM: QUESTIONS Q.1. What is trunking ? Courtesy: Author: Vicky Jain. Publisher: Nandu publications For more questions with complete answers refer to PCOM book by Vicky jain from Nandu publications
Q.2. What is crystal radio?
Q.3. What is inter modulation ?
Q.4. What is cross modulation ?
Q.5. How is information related to bandwidth ?
Q.6. What is stray capacitance ?
Q.7. What do you mean by antenna coupling ?
Q.8. Mention the advantages and disadvantage of SSB over DSB and AM ?
Q.9. Mention the special requirements of SSB and ISB receiver ?
Q.10 Describe the term FM thresholding ?
Q.11 Explain the advantages and disadvantages of FM ?
Q.12 Explain the dynamic range of receiver ?
Q.13 What is the standard sampling frequency for speech signals ?
Q.14 Explain the term- aperture effect ?
Q.15 Advantages and disadvantages of digital modulation ?
Q.16 what radio frequencies are used for what purpose ?
Q.17 What is tank circuit ?
Q.18 What is carrier shift? What does it indicate ?
Q.19 Why do any amplifier that follow the modulator circuit in an AM DSB-FC transmitter have to be linear ?
Q.20 Give the difference between 100% modulated DSB-FC and DSB-SC signal ?
Q.21 How varactor diode act as variable capacitance ?
Q.22 What is δ and mf (modulation index) ?
Q.23 Explain why FM is more immune to noise than AM ?
Q.24 What is capture effect?
Q.25 What is AFC ? Give block diagram ?
Q.26 Draw the block diagram of Crosby direct FM transmitter and explain its operation ?
Q.27 If voice signal is PCM encoded, using 8 bit PCM, what is the output bit rate ?
Q.1 : HTML is which type of language ?
Q.2 : Why we are using scripting language in html ?
Q.3 : Tell us about your mini project .
Q.4 : What is SPIDER and crawling ?
Q.5 : Client server architecture
Q.6 : IP address of any site of choice.
Home 
Study Room Study Material Second year study material
Study Room Study Material Second year study material
Latest Downloads
eBook on Theory of Relativity by Albert Einstein
Batch to EXE converter- KARNATAKA CET-2008 PAPER WITH ANSWERS
- KARNATAKA CET-2010 PAPER WITH ANSWERS
- KARNATAKA CET-2009 PAPER WITH ANSWERS
- Karnataka-CET-2007 Question papers with Answers
- Maharashtra CET Sample Paper - Physics & Chemistry
- Maharashtra CET Sample Paper - Biology
- Karnataka-CET-2006 Question papers with Answers
- Karnataka CET 2005 Question Paper with Answers
- KARNATAKA CET-2004 PAPER WITH ANSWERS
Latest Discussions
-
Mock Test for Maharashtra MBA CET uploaded on guid
-
Saving the Planet
-
The javascript problem of Internet explorer
-
Windows command to flush DNS
-
Sample Maharashtra Engineering CET question papers
-
How to Study to Score High in BE??
-
Interesting facts about India!! (Must Read)
-
Free GPRS!!!
-
Install Android on Nokia
-
Does making Online portfolio help in getting a job
Download Projects
Internet Banking using JAVA(Java based Projects)- Library Application System(Java based Projects)
- Java Exam System(Java based Projects)
- Intranet Chatting(Java based Projects)
- Hospital Management System(Java based Projects)
- Graphical Payroll System(Java based Projects)
- Graphical Library System(Java based Projects)
- Furniture System(Java based Projects)
- Fun Game JAVA(Java based Projects)
- Fashion Model Management System(Java based Projects)
Latest Jobs
|
Online Users
1 user
and 120 guests
online
Subscribe to Newsletter
What is your opinion?
Latest Members
