Explore topic-wise MCQs in Engineering.

A microprocessor with the necessary support circuits will include at least two memory ICs: ROM or EPROM, and a RAM.

I/O-mapped systems identify their input and output devices by giving them an 8-bit port number.

A microcontroller integrates multichip systems with RAM, ROM, and I/O.

In the frequency counter, what is the function of the Schmitt trigger circuit?

Programs written for the 8080A must have slight modifications to run on the 8085A.

List three basic blocks in the digital clock project.

The stack is a data storage area in RAM used by certain microprocessor operations.

When designing an HDL digital system, which is the worst mistake one can make?

For the frequency counter, which is not a control signal from the control and timing block?

In the keypad application, just after the 4 ms mark the simulation imitates the release of the key by changing the column value back to F hex, which causes the d output to go into its Hi-Z state. On the next rising clock edge, what happens to dav?

For a 4-bit DAC, the least significant bit (LSB) is ________.

The dual-slope analog-to-digital converter finds extensive use in ________.

In a digital clock application, the basic frequency must be divided down to:

The devices that provide the means for a computer to communicate with the user or other computers are referred to as:

The software used to drive microprocessor-based systems is called:

The circuits in the 8085A that provide the arithmetic and logic functions are called the:

How many buses are connected as part of the 8085A microprocessor?

What is the difference between a mnemonic code and machine code?

Which of the following buses is primarily used to carry signals that direct other ICs to find out what type of operation is being performed?

The control bus and memories share a bidirectional bus in a typical microprocessor system.

Which bus is a bidirectional bus?

All computer programs for a machine are called:

The 8085A is a(n):

When was the first 8-bit microprocessor introduced?

What type of circuit is used at the interface point of an output port?

What kind of computer program is used to convert mnemonic code to machine code?

A register in the microprocessor that keeps track of the answer or results of any arithmetic or logic operation is the:

Which of the following are the three basic sections of a microprocessor unit?

Because microprocessor CPUs do not understand mnemonics as they are, they have to be converted to ________.

I/O mapped systems identify their input/output devices by giving them a(n) ________.

What type of circuit is used at the interface point of an input port?

The register in the 8085A that is used to keep track of the memory address of the next op-code to be run in the program is the:

How many bits are used in the data bus?

The items that you can physically touch in a computer system are called:

Single-bit indicators that may be set or cleared to show the results of logical or arithmetic operations are the:

When referring to instruction words, a mnemonic is:

The technique of assigning a memory address to each I/O device in the computer system is called:

The ________ ensures that only one IC is active at a time to avoid a bus conflict caused by two ICs writing different data to the same bus.

In the digital clock project, when does the PM indicator go high?

How is the output frequency related to the sampling interval of a frequency counter?

In an HDL application of a stepper motor, after an up/down counter is built what is done next?