ObjectiveMcq
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Which one is used for logical manipulations?
9’s complement
1’s complement
10’s complement
2’s complement
For logical manipulations, 1’s complement is used, as all logical operations take place with binary numbers.
The 1’s complements requires _________
Three operations
Two operations
Combined Operations
One operation
Only one operation is required for 1’s complement operation. This includes only inversion of 1’s to 0’s and 0’s to 1’s.
The advantage of 2’s complement system is that _________
No arithmetic operations are required
Different Arithmetic operations are required
Two arithmetic operations are required
Only one arithmetic operation is required
The advantage of 2’s complement is that only one arithmetic operation is required for 2’s complement’s operation and that is only addition. Just by adding a 1 bit to 1’s complement, we get 2’s complement.
1’s complement can be easily obtained by using _________
Inverter
Adder
Comparator
Subtractor
With the help of inverter the 1’s complement is easily obtained. Since, during the operation of 1’s complement 1 is converted into 0 and vice-versa and this is well suited for the inverter.
Logic circuitry is used to detect _________
Overflow
LSD
Underflow
MSD
To check the overflow logic circuitry is used in each case. Overflow occurs when the processor cannot handle the result properly when it produces an out of the range output.
An overflow occurs in _________
MSD position
LSD position
Middle position
Signed Bit
No explanation is available for this question yet.
An overflow is a _________
Hardware problem
Software problem
Input Output Error
User input problem
An overflow is a software problem which occurs when the processor cannot handle the result properly when it produces an out of the range output.
If the number of bits in the sum exceeds the number of bits in each added numbers, it results in _________
Successor
Overflow
Predecessor
Underflow
If the number of bits in the sum exceeds the number of bits in each added numbers, it results in overflow and is also known as excess-one. In case of any arithmetic operation, if the result has less number of bits than the operands, then it is known as underflow condition.
Which of the following is not a primary storage device?
RAM
Magnetic disk
Optical disk
Magnetic tape
RAM (i.e. Random Access Memory) is not a primary storage device.
A place which is used as storage location in a computer __________
A byte
An address
A bit
A record
A storage location of a computer is an address/memory location, used to store instructions and data.
CD-ROM is a __________
Magnetic memory
Semiconductor memory
Non-volatile memory
Memory register
CD-ROM is a non-volatile memory. Once a program is uploaded in it then it can’t be erasable. Thus, it stores the data permanently.
The memory which is used for storing programs and data currently being processed by the CPU is called __________
Non-volatile memory
Mass memory
Main Memory
PROM
PROM has the capability to store the data due to the presence of MOSFET which is processed by the CPU. It is one-time programmable by the user.
Which one is self-compatible?
ROM
PROM
RAM
EROM
As semiconductor memories enjoy common interface and technology between sensing and decoding circuitry and the storage element itself, so RAMs are self-compatible. Also, they provide high speed and fast operation.
Which one is more economical?
RAM
PROM
EROM
ROM
RAM is more economical than ROM because MOS memories are more economical than the magnetic core for small and medium sized systems.
The advantages of RAMs are __________
Fast operating speed
All of the Mentioned
Low power dissipation
Non destructive read out
The advantages of RAM are Non-destructive read out, Fast operating speed and Low power dissipation.
RAMs are utilized in the computer as __________
All of the Mentioned
Buffer
Scratch-pad
Main memory
RAMs are utilized in the computer as a scratch-pad, buffer and main memories. These are the applications of RAMs. Mostly, these RAMs are DRAMs as they provide high speed.
When PSRAM is performing internal refresh __________
The read operation is performed
The write operation is performed
The voltage goes HIGH
It can not be accessed for read or write
The full form of PSRAM is Pseudo Static RAM. It is a dynamic RAM having built-in fresh logic, which is implemented as a SRAM. So, it can not be accessed for read or write during the refresh operation.
Pseudo static RAM is a __________
ROM
Cache
Static RAM
Dynamic RAM
The full form of PSRAM is Pseudo Static RAM. It is a dynamic RAM having built-in fresh logic, which is implemented as an SRAM.
The full form of PSRAM is __________
Pseudo Static RAM
Plugged Static RAM
Plugged Stored RAM
Pseudo Stored RAM
The full form of PSRAM is Pseudo Static RAM. It is a dynamic RAM which is implemented as a SRAM.
How many supply voltage ICrequires to operate the IC unit?
3
2
1
4
IC 4116 is a DRAM of 16 KB storage memory. It requires three supply voltages (+5V, -5V, and +12V) to operate the IC unit.
