V Semester B.C.A Examination ,November/December 2009
Y2K7 SCHEME
BCA 501 COMPUTER ARCHITECTURE
TIME:3HOURS MAX.MARKS:80
Instruction : Answer all the sections
SECTION -A
Answer any 8 questions.each question carries 3 marks.
1.Obtain the simplified function in POS form for the function
F ( A,B,C,D) = E(0,1,2,5,8,9,10)
2.What is a Decoder ? Construct a 3 X 8 Decoder using 2 X 4 Decoder.
3.What is an integrated circuit ? Write a note on different logic families of integrated circuits.
4.Represent -14 using 3 different representation of negative number using 8 bits.
5.Explain the basic computer's instruction code formats.
6.Explain the input output instructions.INP,SKO,IOF with examples.
7.Convert the following numerical arithmetic expression into reverse polish notation
and show the stack operations for evalutation result.
( 3 + 4 )[10 ( 2 + 6 )+ 8 ].
8.What are the three types of CPU organizations ? Explain with an examples.
9.Write short note on Isolated and memeory mapped I/O.
10.What is a page Replacement ? Explain FIFO and LRU page replacement algorithms
SECTION-B
Answer any 4 full questions.Each full questions carries 14 marks 14 X 4 =56
11.Design a clocked sequential circuit that goes through a sequence of repeated binary
states 00, 01, 10 and 11, When an external input x=1 .The state of the circuit remains unchanged
when x = 0.
12.a) Express decimal no 8620 in BCD,XS-3 CODE, 2421 code and binary 4 + 10
b) Derive a circuit for a 3 bit parity generator and a 4 bit parity checker using an even parity.
13.a)Explain the controls LD,INR.CLR associated with the Address register
AR Of a basic Computer with a Block diagram.
b) Explain with a neat block diagram the control unit of a basic computer.
14.Explain the working of a basic computer with a neat flow chart.
15.a) Explain with a a neat block diagram the general register organizattion. 7 + 7
b)Explain a 4-bit Register with a load count input with a neat logic diagram.
16.a) Explain the block diagram of a typical asynchronous communication interface.
b) Explain associative memory with a neat block diagram. 7 + 7
Y2K7 SCHEME
BCA 501 COMPUTER ARCHITECTURE
TIME:3HOURS MAX.MARKS:80
Instruction : Answer all the sections
SECTION -A
Answer any 8 questions.each question carries 3 marks.
1.Obtain the simplified function in POS form for the function
F ( A,B,C,D) = E(0,1,2,5,8,9,10)
2.What is a Decoder ? Construct a 3 X 8 Decoder using 2 X 4 Decoder.
3.What is an integrated circuit ? Write a note on different logic families of integrated circuits.
4.Represent -14 using 3 different representation of negative number using 8 bits.
5.Explain the basic computer's instruction code formats.
6.Explain the input output instructions.INP,SKO,IOF with examples.
7.Convert the following numerical arithmetic expression into reverse polish notation
and show the stack operations for evalutation result.
( 3 + 4 )[10 ( 2 + 6 )+ 8 ].
8.What are the three types of CPU organizations ? Explain with an examples.
9.Write short note on Isolated and memeory mapped I/O.
10.What is a page Replacement ? Explain FIFO and LRU page replacement algorithms
SECTION-B
Answer any 4 full questions.Each full questions carries 14 marks 14 X 4 =56
11.Design a clocked sequential circuit that goes through a sequence of repeated binary
states 00, 01, 10 and 11, When an external input x=1 .The state of the circuit remains unchanged
when x = 0.
12.a) Express decimal no 8620 in BCD,XS-3 CODE, 2421 code and binary 4 + 10
b) Derive a circuit for a 3 bit parity generator and a 4 bit parity checker using an even parity.
13.a)Explain the controls LD,INR.CLR associated with the Address register
AR Of a basic Computer with a Block diagram.
b) Explain with a neat block diagram the control unit of a basic computer.
14.Explain the working of a basic computer with a neat flow chart.
15.a) Explain with a a neat block diagram the general register organizattion. 7 + 7
b)Explain a 4-bit Register with a load count input with a neat logic diagram.
16.a) Explain the block diagram of a typical asynchronous communication interface.
b) Explain associative memory with a neat block diagram. 7 + 7
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