Unit 2 Flashcard PIT

Front

What has Marco done with the database showing favorite ice cream flavors for each person in his school?

Back

turned data into information

Front

Cynthia finds a spreadsheet on her desk. It has rows and columns of numbers, such as 37, 28, 91, and 12, but Cynthia is not sure what the numbers mean. Which term best describes what Cynthia has?

Back

data

Front

Ning wants to gather data about humidity for a science project. Which of these is needed to gather data?
binary code, information, an input device, an output device

Back

an input device

Front

Which of these statements describes the difference between binary and decimal numbers? Binary numbers use only the digits 0 and 1; decimal numbers use 0 through 9.

Back

Binary numbers use only the digits 0 and 1; decimal numbers use 0 through 9.

Front

If the number BDB76B is used to describe a color in a computer program, which number system is being used?

Back

hexadecimal

Front

Processor speeds are given in hertz. One hertz refers to what?

Back

one fetch-decode-execute cycle

Front

A computer in an advertisement has a 3.64-GHz processor. What does this mean?

Back

It can execute 3.64 billion instructions per second.

Front

A data type needs to hold letters and numbers. Which type is best?

Back

string

Front

What data type is needed for a computer program to track expenses recorded in dollars and cents? Options: float, character, integer, Boolean

Back

float

Front

A computer program will use the variables True and False to determine whether the user has enough money in their bank account to make a purchase. Which data type is needed?

Back

Boolean