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Programming Computer Architecture
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Programming Computer Architecture
1
Techniques that automatically move program and data blocks into the physical main memory when they are required for execution are calledVirtual Memory techniques
A
Associative-Mapping techniques
B
Main Memory techniques
C
Virtual Memory techniques
D
Cache Memory techniques
2
In which type of flip-flop the indeterminate condition of the SR flip-flop (when S=R=1) is eliminated?T flip-flop
A
Edge-triggered flip-flop
B
JK flip-flop
C
D flip-flop
D
T flip-flop
3
What does T stands for in T flip-flop?
A
Top
B
Type
C
Toggle
D
Tickle
4
What are the major components of a CPU?
A
Control Unit Register Set Arithmetic Logic Unit
B
Control Unit Memory Unit Arithmetic Logic Unit
C
Memory Unit Arithmetic Logic Unit Auxiliary Memory
D
Register Set Control Unit Memory Unit
5
he registers found in the processor unit are
A
Operational registers
B
Memory registers
C
Binary registers
D
Storage registers
6
Given the characteristic table of a JK flip-flop find the missing output value. J K Q(t+1) 0 0 Q(t) 0 1 0 #1 0 1 #1 1 ---
A
Q(t)
B
Q?(t+1)
C
1
D
Q?(t)
7
The sum of -6 and -13 using 2?s complement addition is
A
11100011
B
11110011
C
11001100
D
11101101
8
What is Q when S = 1 and R = 1 for SR flip-flop?Complement of previous output
A
No Change
B
Clear to 0
C
Set to 1
D
Indeterminate.
9
The bulk of the binary information in a digital computer is stored in memory but all computations are done in
A
Timing Control
B
Memory Registers
C
Processor Registers
D
Program Control
10
#2?s complement of -13 = 11110011 Add the two numbers in their 2?s complement form including their sign bits and discard any carry out of the sign (leftmost) bit position. So the answer is 11101101 (-19). -6 11111010 -13 11110011 ---------------------- -19 11101101 #6. Which one of the following CPU registers holds the address of the instructions (instructions in the program stored in memory) to be executed next?IR (Instruction Register)
A
MAR (Memory address register)
B
MBR (Memory Buffer Register)
C
AC (Accumulator)
D
PC (Program Counter)
11
.Information transfer from one register to another is designated in symbolic form by means of
A
Control Function
B
Op Code
C
Registers
D
Replacement Operator
12
The simplest way to determine cache locations in which to store memory blocks is the
A
Associative Mapping technique
B
Direct Mapping technique
C
Set-Associative Mapping technique
D
Indirect Mapping technique
13
The CPU nearly delays its operation for one memory cycle to allow direct memory I/O transfer. This process is called
A
Burst transfer
B
Cycle waiting
C
Cycle stealing
D
Cycle interrupting
14
The correspondence between the main memory blocks and those in the cache is specified by
A
Mapping function
B
Replacement algorithm
C
Hit rate
D
Miss penalty
15
To convert octal code to binary code which of the following digital functions should be used?
A
Decoder
B
Encoder
C
Multiplexer
D
Demultiplexer
16
System Software usually includes a program called a -------- which helps the programmer find errors in a program.
A
Write Buffer
B
Read Buffer
C
Debugger
D
Both (opt1) and (opt3) above
17
Which of the following representation requires the least number of bits to store the number +255?
A
BCD
B
2?s complement
C
1?s complement
D
Unsigned binary
18
The processor ---------- and I/O Devices are interconnected by means of a common bus. #17. The processor ---------- and I/O Devices are interconnected by means of a common bus.Main Memory
A
Cache Memory
B
Auxiliary Memory
C
Virtual Memory
D
Main Memory
19
Which of the following modes are used to handle data transfer to and from peripherals?
A
Programmed I/O
B
Programmed I/O
C
Interrupted-initiated I/O
D
Programmed I/O Interrupted-initiated I/O Direct memory access
20
The control condition is terminated with
A
Comma
B
Semicolon
C
Colon
D
Hash
21
.Boolean functions expressed as a --------- of minterms or ---------- of maxterms are said to be in a canonical form.
A
Product Sum
B
Sum Product
C
Subtract Divide
D
Divide Subtract
22
A combinational circuit that converts binary information from n input lines to a maximum of unique output lines is
A
Decoder
B
Encoder
C
Full-adder
D
None of these
23
What are the building blocks of combinational circuits?Registers
A
Flip-flops
B
Logical gates
C
Latches
D
Full-subtractor
24
What are the missing values in the truth table of a half-adder given below? x y C S 0 0 -- -- 0 1 0 1 #1 0 0 1 #1 1 1 0
A
x
B
y
C
0
D
1
25
A full-adder is simply a connection of two half-adders joined by
A
AND gate
B
OR gate
C
NAND gate
D
NOR gate
26
he gray code of a given binary number 1001 is
A
1110
B
110
C
1101
D
1111
27
In which type of flip-flop the indeterminate condition of the SR flip-flop (when S=R=1) is eliminated?
A
Edge-triggered flip-flop
B
JK flip-flop
C
D flip-flop
D
T flip-flop
28
What is Q when S = 1 and R = 1 for SR flip-flop?Set to 1
A
No Change
B
Clear to 0
C
Complement of previous output
D
Indeterminate.
29
Techniques that automatically move program and data blocks into the physical main memory when they are required for execution are called
A
Associative-Mapping techniques
B
Main Memory techniques
C
Virtual Memory techniques
D
Cache Memory techniques
30
The one major advantage of CMOS is its #34. The one major advantage of CMOS is itsHigh propagation delay
A
Low propagation delay
B
High propagation delay
C
Very low propagation delay
D
Very high propagation delay
31
The registers found in the processor unit are
A
Operational registers
B
Memory registers
C
Storage registers
D
Binary registers
32
Information transfer from one register to another is designated in symbolic form by means of a
A
Control Function
B
Op Code
C
Registers
D
Replacement Operator
33
What are the major components of a CPU?Control Unit Register Set Arithmetic Logic UnitControl Unit Memory Unit Arithmetic Logic Unit
A
Control Unit Register Set Arithmetic Logic Unit
B
Control Unit Memory Unit Arithmetic Logic Unit
C
Memory Unit Arithmetic Logic Unit Auxiliary Memory
D
Register Set Control Unit Memory Unit
34
2?s complement of -13 = 11110011 Add the two numbers in their 2?s complement form including their sign bits and discard any carry out of the sign (leftmost) bit position. So the answer is 11101101 (-19). -6 11111010 -13 11110011 ------------------ -19 11101101 #38. Which one of the following CPU registers holds the address of the instructions (instructions in the program stored in memory) to be executed next?IR (Instruction Register)
A
MAR (Memory address register)
B
MBR (Memory Buffer Register)
C
AC (Accumulator)
D
PC (Program Counter).
35
64K memory contains how many words of 8 bits each?
A
65,536
B
64,536
C
65,436
D
65,546
36
Consider the following logic function f(ABC). f(ABC) = ( A + B + C?) . (A + B?+ C?) Which of the following would be the result if the above logic function is to be simplified using k-maps?
A
C? + A
B
C + C?A?
C
C.A?
D
C?.A
37
A full-adder is simply a connection of two half-adders joined by a
A
AND gate
B
OR gate
C
NAND gate
D
NOR gate
38
Convert decimal value (888)10 to base-5.(444)5
A
(444)5
B
(12023)5
C
(131313)5
D
(12021)5
39
The correspondence between the main memory blocks and those in the cache is specified by aPage fault
A
Miss penalty
B
Replacement algorithms
C
Hit rate
D
Mapping functions.
40
The transfer of new information into the register is called
A
Execution
B
Loading
C
Shifting
D
Configuring
41
The set of physical addresses is called
A
Disk Space
B
Address Space
C
Pages
D
Frames
42
The DMA transfer technique where transfer of one word data at a time is called
A
Cycle stealing
B
Memory stealing
C
Hand-shaking
D
Inter-leaving
43
The number of 256*4 RAM chips required to construct 2KB CACHE is
A
8
B
2
C
4
D
16
44
The processor _________ and I/O Devices are interconnected by means of a common bus. #49. The processor _________ and I/O Devices are interconnected by means of a common bus.
A
Cache Memory
B
Auxiliary Memory
C
Virtual Memory
D
Main Memory
45
What are the building blocks of combinational circuits?Registers
A
Flip-flops
B
Logic gates
C
Latches
D
Registers
46
What is the name of device that is allowed to initiate data transfer on the bus?
A
Bus Master
B
Bus Arbitration
C
Bus Cycle
D
Bus Request
47
What interface is used to connect the processor to I/O devices that require transmission of data one bit at a time?
A
Parallel
B
Serial
C
Output
D
Input
48
ystem Software usually includes a program called a _______ which helps the programmer to find errors in a program.
A
Write Buffer
B
Read Buffer
C
Debugger
D
Both (opt1) and (opt3) above
49
What is the purpose of RAID system?
A
It increases the processor speed
B
It increases the disk storage capacity
C
It increases the disk storage capacity and availability
D
It increases operating system efficiency
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