KNL1253 Digital Electronics Quiz 1

What kind of logic device or circuit is used to store information?

• Counter
• Inverter
• Register
• Buffer

Which of the following is the most widely used alphanumeric code for computer input and output?

• Gray
• EBCDIC
• ASCII
• Parity

The voltages in digital electronics are continuously variable.

• True
• False

Which is typically the longest: bit, byte, nibble, word?

• Bit
• Byte
• Nibble
• Word

What decimal number does 2⁵ represent?

• 10
• 31
• 25
• 32

What are the symbols used to represent digits in the binary number system?

• 0,1
• 0,1,2
• 0 through 8
• 1,2

What is the difference between binary coding and binary-coded decimal?

• BCD is pure binary.
• Binary coding has a decimal format.
• BCD has no decimal format.
• Binary coding is pure binary.

The output of an AND gate is LOW ________.

• all the time
• when any input is LOW
• when any input is HIGH
• when all inputs are HIGH

Convert binary 111111110010 to hexadecimal.

• EE2₁₆
• FF2₁₆
• 2FE₁₆
• FD2₁₆

Convert 59.72₁₀ to BCD.

• 111011
• 01011001.01110010
• 1110.11
• 0101100101110010