Unit 1 - Digital Information

The binary system is (a)  

• B) A way of representing informatio
• C) A process for reducing the numbe
• D) A collection of public copyright

What does 'bit' stand for?

• A) Binary Information Technology

• B) Binary Digit

• C) Byte Information Technology

• D) Byte Digit

How many bits are in a byte? A) 4 bits B) 8 bits C) 16 bits D) 32 bits

• 4 bits

• 8 bits

• 16 bits

• 32 bits

What is an overflow error?

• Error from attempting to represent a number that is too small.

• Error from attempting to represent a number that is too large.

• Error from attempting to represent a number that is too precise.

• Error from attempting to represent a number that is too rounded.

Match the following descriptions with the types of errors they represent.

• Truncation error

• Error from attempting to represent a number that is too large.

• Underflow error

• Error from attempting to represent a number that is too rounded.

• Round-off error

• Error from attempting to represent a number that is too precise.

• Overflow error

• Error from attempting to represent a number that is too small.

What type of data changes continuously over time?

• Digital Data

• Binary Data

• Analog Data

• Intellectual Property

What is digital data?

• Data that changes continuously over time.

• Data that changes discretely through a finite set of possible values.

• A process for reducing the number of bits needed to represent something.

• A collection of public copyright licenses.

What is sampling in digital information?

• A) A process for reducing the number of bits needed to represent something.

• B) A process for creating a digital representation of analog data.

• C) A way of representing information using only two options.

• D) A collection of public copyright licenses.

What is lossless compression?

• A process for reducing the number of bits needed to represent something without losing any information.

• A process for reducing the number of bits needed to represent something with loss of information.

• A way of representing information using ten options.

• A collection of public copyright licenses.

Match the following descriptions with their corresponding terms.

• Lossless compression

• A process for reducing the number of bits needed to represent something without losing any information.

• Binary representation

• A way of representing information using only two options.

• Creative Commons

• A collection of public copyright licenses.

• Lossy compression

• A process for reducing the number of bits needed to represent something with loss of information.