Binary Numbers
Convert from base-2 10 to base-10.
What is 2?
All numbers, text, video images, and audio sounds are all stored as...
What is binary values?
Data compression with the loss of data is called...
What is lossy compression?
T or F: Data size, data type, and data modified are all examples of metadata.
What is true?
T or F: The number of possible single digits is equal to the base value.
Example - Base-10 has 10 unique, single digits.
What is true?
The formula that gives the quantity of integers that fit in a memory bit block is...
Example - this formula tells you how many numbers fit into a 32-bit block.
What is 2^bits?
Example - a 5-bit block holds 2^5 (32) different integers.
Data compression without the loss of data is called...
What are some advantages of using computers for data processing over humans?
Convert from base-10 25 to base-2.
What is 11001?
What is true?
Example - We have a 3-bit block. The largest number stored in that block is (2^3) - 1 = 7.
What happens when you continue to zoom into an image?
What is pixelation?
What is the process of preparing data for analysis by removing incorrect or irrelevant data?
What is data cleaning?
What is base-10 253 in base-2?
What is 11111101?
ASCII assigns numerical codes to 256 different characters using...
What is binary digits?
Facebook posts are an example of lossy or lossless compression?
What is lossy compression?
What are some requirements for data cleaning?
What is accurate data, clean data, and without bias?
T or F: The largest single digit is equal to the base value.
Example: The largest digit in base-10 is 10.
What is false?
Explanation: The largest single digit is one less than the base value (ex: the largest digit in base-10 is 9).
Unicode representation allows for how many different characters?
What is more than 1,000,000?
What requires the most memory for data storage?
What was the first business software developed for a PC?
What is VisiCalc?