Any number with an exponent of zero is equal to:

Which of the following statements does NOT describe an advantage of digital technology?

• [A] The values may vary over a continuous range.
• [B] The circuits are less affected by noise.
• [C] The operation can be programmed.
• [D] Information storage is easy.

The output of an OR gate is LOW when ________.

• [A] all inputs are LOW
• [B] any input is LOW
• [C] any input is HIGH
• [D] all inputs are HIGH

For which of the following flip-flop the output clearly defined for all combinations of two inputs?

• [A] Q type flip-flop
• [B] R S type flip-flop
• [C] J K flip-flop
• [D] T flip-flop

What is a digital-to-analog converter?

• [A] It allows the use of cheaper analog techniques, which are always simpler.
• [B] It takes the digital information from an audio CD and converts it to a usable form.
• [C] It converts direct current to alternating current.
• [D] It stores digital data on a hard drive.

Which of the following is minimum error code?

• [A] Octal code
• [B] Grey code
• [C] Binary code
• [D] Excess 3 code