TM Radix conversion

Which of the following is the appropriate combination that represents the decimal number “–14” in 8-bit one’s complement binary and 8-bit two’s complement binary?

• 1': 11110011

  2': 11110100

• 1': 11110001

  2': 11110000

• 1': 11110011

  2': 11110010

• 1': 11110001

  2': 11110010

Which of the following decimal values is equivalent to a hexadecimal fraction 0.A?

• 0.15

• 0.625

• 0.425

• 0.9375

An internet connection has a download speed of 8Mbps. How long does it take to download a video 56MB?

• 7

• 14

• 28

• 56

What is the hexadecimal representation of an octal fraction 3706.52?

• 1B0.C2

• 6F3.AB

• 7C6.A8

• 6FF.97

In a lighting circuit for an anode-common type LED with seven (7) segments, when 30 in hexadecimal is written out to the output port, which of the following is displayed? Here, P7 is the most significant bit (MSB), P0 is the least significant bit (LSB), and the LED lights up when the port output is 0.

• A

• B

• C

• D