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Digital-electronics Questions Set 129:

Quiz Mode

Perform hexadecimal addition: 23D9 + 94BE

B963

B897

A967

B787

Solution:

How many 1024 x 1 RAM chips are required to construct a 1024 x 8 memory system?

Solution:

For a 6-bit shift register, how many clock pulses are required to load a complete data serially?

Solution:

Convert the binary number 5 into a 4-bit negative binary number using the 2's complement method.

1101

0101

1010

1011

Solution:

The inputs to a full adder are A = 1, B = 0, Cin = 1. The outputs are

Σ = 0, Cout = 1

Σ = 0, Cout = 0

Σ = 1, Cout = 1

Σ = 1, Cout = 0

Solution:

A bit attached to each group of information bits to make the total number of 1s odd or even for every group of bits is called______.

Solution:

What is a disadvantage of Diode-Transistor Logic (DTL)?

The input resistor to the transistor

Increased fan in

Increased fan out

The input transistor to the resistor

Solution:

Which of the following statements about antifuse is false?

It has high initial resistance

It is designed permanently to break an electric conducting bath

It uses CMOS technology

None of the above

Solution:

Which of the following is correct for a D latch?

The output toggles if one of the inputs is held HIGH

Q output follows the input D when the enable is HIGH

Only one of the inputs can be HIGH at a time

The output complement follows the input when enabled

Solution:

In general, when using a scope to troubleshoot digital systems, the instrument should be triggered by ____________

The A channel or channel 1

The vertical input mode, when using more than one channel

The system clock

Line sync, in order to observe troublesome power line glitches

Digital-electronics Questions Set 129:

Perform hexadecimal addition: 23D9 + 94BE

Solution:

How many 1024 x 1 RAM chips are required to construct a 1024 x 8 memory system?

Solution:

For a 6-bit shift register, how many clock pulses are required to load a complete data serially?

Solution:

Convert the binary number 5 into a 4-bit negative binary number using the 2's complement method.

Solution:

The inputs to a full adder are A = 1, B = 0, Cin = 1. The outputs are

Solution:

A bit attached to each group of information bits to make the total number of 1s odd or even for every group of bits is called______.

Solution:

What is a disadvantage of Diode-Transistor Logic (DTL)?

Solution:

Which of the following statements about antifuse is false?

Solution:

Which of the following is correct for a D latch?

Solution:

In general, when using a scope to troubleshoot digital systems, the instrument should be triggered by ____________

Solution:

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