The program counter in a 8085 micro-processor is a 16-bit register, because

Microprocessor
The program counter in a 8085 micro-processor is a 16-bit register, because

It has to fetch two 8-bit data at a time

It counts 16-bits at a time

There are 16 address lines

It facilitates the user storing 16-bit data temporarily

It has to fetch two 8-bit data at a time

It counts 16-bits at a time

There are 16 address lines

It facilitates the user storing 16-bit data temporarily

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
Consider the following statements: Arithmetic Logic Unit (ALU) 1.Performs arithmetic operations 2.Performs comparisons. 3.Communicates with I/O devices 4.Keeps watch on the system Which of these statements are correct?

1, 2 and 3

1 and 2 only

3 and 4 only

1, 2, 3 and 4

1, 2 and 3

1 and 2 only

3 and 4 only

1, 2, 3 and 4

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
A microprocessor differentiates between op code, data/address at any time by

the stack pointer

its internal registers

the program counter

the sequence in which memory contents are fetched by it

the stack pointer

its internal registers

the program counter

the sequence in which memory contents are fetched by it

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is

Either A or B depending on the actual number

A negative floating point number

A larger floating point number

A smaller floating point number

Either A or B depending on the actual number

A negative floating point number

A larger floating point number

A smaller floating point number

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
Which one of the following interrupt/interrupts is/are only level triggering?

RST 5.5

TRAP

both ‘a’ and ‘b’

RST 6.5

RST 5.5

TRAP

both ‘a’ and ‘b’

RST 6.5

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
Cycle stealing mode of DMA operation involves

Data transfer takes place between the I/O device and memory during every alternate clock cycle

The DMA control waiting for the microprocessor to finish execution of the program and then takes over the buses

While the microprocessor is executing a program an interface circuit takes over control of address, data, control buses when not in use by microprocessor

DMA controller taking over the address, data and control buses while a block of data is transferred between memory and I/O device

Data transfer takes place between the I/O device and memory during every alternate clock cycle

The DMA control waiting for the microprocessor to finish execution of the program and then takes over the buses

While the microprocessor is executing a program an interface circuit takes over control of address, data, control buses when not in use by microprocessor

DMA controller taking over the address, data and control buses while a block of data is transferred between memory and I/O device

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor

Microprocessor The program counter in a 8085 micro-processor is a 16-bit register, because

Microprocessor Consider the following statements: Arithmetic Logic Unit (ALU) 1.Performs arithmetic operations 2.Performs comparisons. 3.Communicates with I/O devices 4.Keeps watch on the system Which of these statements are correct?

Microprocessor A microprocessor differentiates between op code, data/address at any time by

Microprocessor If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is

Microprocessor Which one of the following interrupt/interrupts is/are only level triggering?

Microprocessor Cycle stealing mode of DMA operation involves

Microprocessor
The program counter in a 8085 micro-processor is a 16-bit register, because

Microprocessor
Consider the following statements: Arithmetic Logic Unit (ALU) 1.Performs arithmetic operations 2.Performs comparisons. 3.Communicates with I/O devices 4.Keeps watch on the system Which of these statements are correct?

Microprocessor
A microprocessor differentiates between op code, data/address at any time by

Microprocessor
If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is

Microprocessor
Which one of the following interrupt/interrupts is/are only level triggering?

Microprocessor
Cycle stealing mode of DMA operation involves