HSC Science (Computer Science)
Academic Year: 2014-2015
Date: March 2015
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______Instruction would not affect Zero Flag.
(i) XRA A
(ii) SUB A
(iii) CMPA
(iv) MVI A, 00H
Chapter:
Data bus of 80286 MPU is of size_____
(i) 8 bit
(ii) 16 bit
(iii) 32 bit
(iv) 64 bit
Chapter:
_____is used to store 8 bit opcode in 8085.
(i) IR
(ii) PC
(iii) SP
(iv) Accumulator
Chapter:
The device used to extend cable length of a network is ______.
modem
Repeater
Hub
Router
Chapter:
State any six features of 8051 Microcontroller.
Chapter:
Explain Multiplexed Address and Data Bus of 8085 MPU.
Chapter:
State any six Arithmetical and Logical Instructions of 8085 MPU.
Chapter:
State the different hardware interrupts with their priorities and branching addresses.
Chapter:
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Explain the following instructions of 8085 MPU: MOV B, M
Chapter:
Explain the following instructions of 8085 MPU : ADC C
Chapter:
Explain the following instructions of 8085 MPU : SPHL
Chapter:
Explain the following instructions of 8085 MPU : XCHG
Chapter:
What is a Single Chip Computer ? State its advantages
Chapter:
Explain the advantages of following features of Pentium Processor
(i) Dual - Pipelining
(ii) Pre fetching
(iii) Branch Prediction
(iv) Internal Data Bus
Chapter:
Explain function of the following pins of 8085
`bar(INTA)`
Chapter:
Explain function of the following pins of 8085
`IO"/"barM`
Chapter:
Explain function of the following pins of 8085 RD
Chapter:
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Give advantages of Fiber Optic Cable over an Electrical Cable.
Chapter:
Write ALP to multiply number stored at 8085H by 09H and store result at 8086H and 8087H, with lower byte at 8086H.
Chapter:
Write ALP to find 2's complement of a 16 bit number stored in DE Pair. Store result in HL Pair.
Chapter:
Locate smallest number in a block from 2050H to 2060H and store it in memory location 2061H
Chapter:
Write ALP to store data BCH in 20 contiguous memory locations starting from 8081 H.
Chapter:
Write ALP to divide number at 6068H by a non-zero number at 6067H. Store quotient at 6069H and remainder at 606AH.
Chapter:
Write ALP to clear Register ,B, if number at memory location 20F9H is Palindrome; otherwise store FFH in Register B.
[Palindrome No. Ex. FF, 22, AA]
Chapter:
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