EA1 Ch3 General

Which of the following is the most basic unit of data?

• Bit

• Byte

• Kilobyte

• Megabyte

How many bits are there in 1 Byte?

• 4 bits

• 8 bits

• 16 bits

• 32 bits

What is the value of 101₂ in decimal?

• 2

• 4

• 5

• 8

Which of the following is the unit of data transfer rate?

• Bit per second

• Byte per second

• Kilobit per second

• Megabyte per second

What is the value of 2¹² as binary number?

• 1000000000

• 10000000000

• 100000000000

• 1000000000000

Which of the following is the method for representation of signed integers?

• Two's complement

• One's complement

• Unsigned integer

• Overflow error

Which character encoding system can be used for characters in different languages?

• ASCII

• Big-5 code

• Guobiao (GB) code

• Unicode

Which of the following devices CANNOT be used for conversion between analog and digital data?

• Digital camera

• USB flash drive

• Sound card

• Printer

What is/are the benefit(s) of using two's complement in a computer's calculation?

• Subtraction can be done by using addition

• It can represent negative integers

• Avoid 2 representations of zero

Which of the following statements about digitalization is incorrect?

• Digitalisation does not lead to any data loss

• Digitalisation is the process of converting continuous data to discrete data

• Exact copies of digitized data can be created

• Digitalisation allows data to be processed by computers easily