Unit I: Introduction to Interfacing  Two Marks Questions:  1. 2. 3. 4. 5. 6.

List feature of 8086 microprocessor?  List default offset pare of segment registers in 8086?  Why address and data bus are multiplexed in microprocessors?  List feature of X86DX microprocessor?  Define Machine cycle with respect to microprocessor?  What do we mean by addressing mode of various microprocessors? 

Four Marks Questions:  1. 2. 3. 4. 5. 6.

Advantages of segmentation in 8086?  Compare 8086 with 80386DX?  Explain in short instruction format of 8386DX processor?  List our feature of i7 processor?  Explain CWDE and SAHF Instructions?  Explain SGDT and LODS Instructions? 

Six Marks Questions:  1. 2. 3. 4. 5. 6.

Explain flag register of 8086 in detail?  Describe linear address generation through segmentation of 80386DX?  Compare 80386DX and i7 processors?  Explain addressing mode of 80386DX with example?  Draw architecture of i7 processor and explain?  List at least 6 assembler directive and explain? 

Unit II: Legacy DOS Internals and Interrupts Controller:  Two Marks Questions:  1. 2. 3. 4. 5. 6.

List feature of 8259 Interrupt controller?  Define the term executable file?  Explain Software or hardware interrupt with example?  Explain batch file?  What is TSR?  Explain components of DOS? 

Four Marks Questions:  1. Explain the process of DOS loading?  2. Compare DOS and BIOS?  3. Explain any two functions of INT 21h software interrupt? 

4. Explain structure of TSR?  5. Compare .COM and .EXE?  6. Draw and explain ICW1 format of 8259?  Six Marks Questions:  1. 2. 3. 4. 5. 6.

   

Interface single 8259 with 8086 in minimum mode?  What is PSP? Draw and explain the structure of PSP?  Explain in details interrupt handling process in 8086?   Write and ALP to display string on the screen?  Describe the three components of COMMAND.COM?  Draw and explain block diagram of 8259 interrupt controller? 

Unit I: Introduction to Interfacing Unit II: Legacy DOS ... -

List feature of 8086 microprocessor? 2. List default offset pare of segment registers in 8086? 3. Why address and data bus are multiplexed in microprocessors?

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