Unit 1 - Digital Information Vocab

Bit

• A single unit of data storage

• A type of computer
• A programming language
• 0 or 1

Byte

• A single unit of information

• A type of computer
• It consists of 8 bits.

• 0110 1110

Binary

• A type of data storage
• A way of representing information using only two options

• A type of computer
• A coding language

Decimal

• A way of representing information using 10 options

• A way of representing information using 2 options

• A way of representing information using 8 options

• A way of representing information using 16 options

Overflow Error

• An error that occurs when the computer runs out of memory
• An error that occurs when a program tries to store too much data in a temporary data storage area
• An error that occurs when a program tries to divide by zero
• An error that occurs when a program tries to open a file that does not exist

Round- Off Error

• An error that occurs when the exact input cannot be represented exactly in the machine
• An error that occurs when a number is represented that is too precise and the value is rounded.

• An error that occurs when a number is divided by zero
• An error that occurs when an integer value is stored in a real variable.

Digital Data

• Data that is represented in a continuous form
• Data that is represented in a decimal form

• Data that changes continuously over time.

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

Analog Data

• Data that is represented in a continuous form
• Data that is represented in a decimal form

• Data that changes continuously over time.

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

Sampling

• A process of creating digital representation of analog data

• A type of data analysis
• A method of data storage
• A type of data visualization

Lossless Compression

• Reduces number of bits without losing information

• Increases number of bits with losing information

• Reduces file size with loss of quality
• Increases file size without loss of quality