Microcontroller System Bus & Architecture

The System bus is made up of _______

• Control Bus

• Address Bus

• Both Control bus and Address bus

• Control bus, Data bus and Address bus

Which bus is unidirectional?

• Address bus

• Data bus

• Control bus

• None of the above

What is the purpose of address bus?

• To provide data to and from the chip.

• To select a specified chip.

• To select a location within the memory chip.

• To select a read/write cycle.

Which of the following bus of computer system is responsible for carrying information?

• Control Bus

• Address Bus

• Data Bus

• Logical Bus

Answer explanation

How many types of architectures are available, for designing a device that is able to work on its own?

• 3

• 1

• 2

• 4

Answer explanation

Explanation: There are basically two main types of architectures present, they are Von Neumann and Harvard architectures.

Which architecture provides separate buses for program and data memory?

• Von Neumann architecture.

• Harvard architecture.

• Harvard and Von Neumann architecture.

• Von Harvard architecture.

Answer explanation

Explanation: Harvard Architecture provides separated buses for data and program memory to fetch program and data simultaneously. By doing this access time is reduced and hence performance is increased

Which architecture is followed by general purpose microprocessors?

• Harvard architecture

• Von Neumann architecture

• None of the mentioned

• All of the mentioned

Answer explanation

Explanation: General purpose microprocessors make use of Von Neumann architecture as here a simpler design is offered.

Which of the two architecture saves memory?

• Harvard

• Von Neumann

• Harvard & Von Neumann

• None of the mentioned

Answer explanation

Explanation: As only one memory is present in the Von Neumann architecture so it saves a lot of memory