Binary Numbers
What two 2 digits are in a binary system?
1s and 0s
What is pixelation?
When a picture shows fewer pixels the more you zoom in.
What is information?
The facts and patterns extracted from data
What can humans be distracted by that computers cannot?
Everything
What is a bit and what does it represent?
A bit is a binary digit that represents the smallest unit of data in computing
T or F? Facebook is an example of lossy compression.
T
What is Metadata?
Data about data; can be used to determine what things you would like to see, do, or purchase based on your previous trends and more!
What made Google the most popular search engine?
They were able to market their search engine well.
What does adding a bit do to the amount of maximum values you can store?
It doubles the amount. For example, 4 bits can store 16 values while 5 can store 32 and 6 can store 64.
What is the pixel size of the Trevi Fountain picture?
2593 x 2593 pixels
What is parallel processing?
Using two or more processors to handle different parts of the task.
What is the first business computer program?
The Spreadsheet program VisiCalc
What is the difference between the transmission of analog and digital data?
Analog data is transmitted in smooth, continuous waves while digital data is transmitted in 0s and 1s from non-continuous signals.
When is Lossy compression used over Lossless compression and why?
Lossy is better when you want to save as much space as possible.
What is the process for cleaning data? (2 Steps)
1. Check for incomplete, corrupt, inaccurate, and duplicate records.
2. From there you have to delete, modify, or replace the dirty data.
Are computers or Humans better at data processing? (List 4 reasons)
Computers are faster than people. They are more accurate than people They have better memories than people. Computers do not get bored or distracted from completing a task.