Question Discussion & Solution

Explanation:

Bus: In computer architecture, a bus (related to the Latin “omnibus”, meaning “for all”) is a communication system that transfers data between components inside a computer, or between computers. This expression covers all related hardware components (wire, optical fiber, etc.) and software, including communication protocols.

The types of buses are:

Address Bus:

• It is a unidirectional Bus, which is responsible for only one-way communication.

Data Bus:

• It is a bi-directional bus.
• Data and Instructions pass through this bus to reach the microprocessor.
• This is responsible for the exchange of information between the main memory and microprocessor.

Control Bus:

• This is a unidirectional bus.
• This tells whether read or write, which operation should be performed that is in which direction the data should flow.

So Utility Bus is not a type of bus used in computer architecture, hence option 4 is the correct answer.

The correct answer is Minamata.

Key Points

• Minamata disease is a disease caused by severe mercury poisoning.
• It is a neurological disease.
• Symptoms of the disease:-
  • Ataxia, general muscle weakness, numbness in the hands and feet, loss of peripheral vision, and damage to hearing and speech.

Additional Information

• Due to mining, Itai-Itai disease was caused by cadmium poisoning.
• Symptoms of Methemoglobinemia:- 
  • Headache, shortness of breath, dizziness, nausea, blue-colored skin, and poor muscle coordination.
• Poliomyelitis is caused by infection with a member of the genus Enterovirus. It is known as poliovirus.

According to given information,

Whatever be the distance covered by the person, when the man stops he is facing south.

Hence, the answer is ‘South’.

Given,

Given Expression: 70S7P21R2Q15

According to question :

=70 ÷ 7 + 21 × 2 – 15

Using BODMAS rule,

=10 + 21 × 2 – 15

= 10 + 42 – 15

= 52 – 15

= 37

Hence, value of the given expression is ‘37’.

The correct answer is EEPROM.

Key Points

• Flash memory is a non-volatile computer storage chip,
• It is made up of EEPROM.
• EEPROM is the acronym of electrically erasable programmable read-only memory,
• EEPROM is a Programmable ROM that can be erased and reprogrammed using an electrical charge.
• It was first was developed by George Perlegos.
• It allows the user to update the computer BIOS without having to open the computer or remove any chips.
• It organized as arrays of floating-gate transistors.
• USB flash drive, Memory cards are the examples of flash memory storage.
• BIOS is stored in Flash memory chip.

Additional Information

• RDRAM is the acronym of Rambus Dynamic Random Access Memory.
  • It is a video RAM.
• MROM is the acronym of Mask ROM.
  • It is produced by arranging transistors before the semiconductor manufacturing process actually begins.
• SRAM is the acronym of Static random-access memory
  • It uses latching circuitry (flip-flop) to store each bit.
• PROM is the acronym of Programmable Read-Only Memory.
  • It can be modified only once by a user.