WorksheetsCOA Quiz - INTERNATIONAL
Total questions: 30
Worksheet time: 30mins
The instruction code is divided into (select one or more):
Opcode
Operand
Accumulator
Pointer
Which are the bits occupied by an OPCODE (select all that apply)?
12
14
9
11
The computer memory is referred with default size of 16 x ________
2048
4096
8080
8008
What is the addressing type when mode bit =1 ?
direct
immediate
indirect
effective
Identify the wrong size from figure (select one or more):
IR
AR
TR
OUTR
Find the missing parameter
IR
INR
CLK
STA
Find the two missing values
BUN
STA
M[AR]
AR
What is the meaning of ISZ?
Increment and Skip if Zero
Increment and Size to Zero
Increment and Skip with Zero
How many bits are used by AX register for IN / OUT command?
8
16
32
64
What is the range of port numbers?
000 to FFF
0000 to FFFF
0000 to 000F
How many multiplexers does a general register organisation contain?
1
2
3
4
Which one of these is the selected input for the Operator in GRO?
SEL A
SEL B
SEL C
SEL D
The ALU operation symbol used to shift right is:
SHR
SFR
SRT
SFT
What does the ALU command symbol "V" indicate?
And
Or
Not
Xor
What is the size of a register stack?
18 bytes
32 bits
64 words
32 words
What is value of FULL bit when the stack is full?
0
1
true
false
Identify the first step used in Push operation in register stack.
SP -> SP+1
M[SP] -> DR
If (SP=SIZE-1) then (FULL-> 1)
EMPTY -> 0
Find the reverse polish for x - (y+z)
yz+x-
xyz-+
zyz+-
x-yz+
What is the equivalent statement for LOAD R3,C
R3 <- M[C]
M[C] <- R3
Sp <- M[C],R3
M[R3] <- C
What is full form of EA?
Effective address
Edge address
Edge accumulator
Extra address
What type of memory is RAM?
Temporary
Permanent
Which of these is considered as expensive and fastest memory?
Hard disk
RAM
Cache
ROM
The methods of asynchronous transfer are - Handshaking and ...
Strobe
Pump
Push
Bus
What does S indicate in RS flipflop?
Set
Settings
Source
Session
Which of these gates gives output as High if any one input is High?
AND
OR
NOT
XOR
Which type of device is the Speaker ?
Output
Input
I/O
Storage
Which notation is used to represent the "Don't Care" condition in k-maps?
X
D
N
--
The symbol Σ (Sigma) is useful in the k-maps method for:
SOP
POS
Generally, there are 10 to 200 gates used in below integration :
SSI
MSI
LSI
VLSI
The multiplexer is also known as:
Data Selector
Decoder
Line circuit
