Website Building Workshop

About The Workshop QuestionPapersHub (QPH) – An Educational Website, is launching a new workshop, “Website Building Workshop“. The Website Building Workshop is open to all candidates irrespective of their branch or degree. No Coding Skills are required for the workshop. We will be showing how you can build your own website, without paying any server … Read more

Resume Building Workshop

The Resume Building Workshop will be conducted for all job seeking candidates irrespective of whether you are a fresher or a professional. This workshops aims to improve your CV and help you to be recognised by the Interviewer or HR even before the interviews starts Read more

Maharashtra: Uday Samant, No Decision To Cancel University Exams Yet

uday samant no decision to cancel university exams

[adinserter block=”1″] Maharashtra Cabinet Minister, Uday Samant issued the clarification about the rumours regarding the cancellation of the university exams, that are spreading over social media. It is to remind that, no such decision, regarding cancellation of University Exams, has being made till yet. So, do not believe over such news. The school education department … Read more

Q.4. Draw and explain architecture of 8085 in details.

Control Unit : Generates signals within uP to carry out the instruction, which has been decoded. In reality causes certain connections between blocks of the uP to be opened or closed, so that data goes where it is required, and so that ALU operations occur. Arithmetic Logic Unit : The ALU performs the actual numerical … Read more

Q. 3. Explain the various addressing modes of 8085 with example

Answer : These are various technique to specify data for instruction Direct addressing mode Register addressing mode Register addressing mode Immediate addressing mode Implicit addressing mode   Direct addressing mode : In this addressing mode the address of the operand is given in the instruction. Ex: STA 2000H &IN 02H  Register addressing mode: In this … Read more

Q.2. With neat diagram explain interrupt structure of 8085.

Interrupts are the signals generated by the external devices to request the microprocessor to perform a task. There are 5 interrupt signals, i.e. TRAP, RST 7.5, RST 6.5, RST 5.5, and INTR. Interrupt are classified into following groups based on their parameter : Vector interrupt : In this type of interrupt, the interrupt address is … Read more

Q.1. Draw and explain timing diagram for ‘Write operation’ in minimum mode of 8086.

Answer : The timing diagram for write operation in minimum mode is shown in fig above: When processor is ready to initiate the bus cycle, it applies a pulse to ALE during T1. Before the falling edge of ALE, the address, BHE, M/IO, DEN and DT/R must be stable i.e. DEN = high and DT/R … Read more