How do Computers Represent DATA?

Zenva

5 Jul 202201:15

Summary

TLDRThe script explains how digital systems use numbers to represent data. When typing on a keyboard, the computer stores numbers, not letters. These numbers are processed in binary format (ones and zeros). The ASCII format assigns specific numbers to symbols, such as 65 for the letter 'a' and 66 for 'b'. Colors in digital systems are determined by three numbers representing red, green, and blue, with each value ranging from 0 to 255, resulting in over 16 million possible color combinations. This highlights the fundamental role of numbers in digital data representation and processing.

Takeaways

😀 Digital systems represent all data using numbers.
😀 Computers process data using binary (ones and zeros).
😀 ASCII format assigns numbers to symbols for easy computer interpretation.
😀 Each character, such as 'a' and 'b', is represented by a specific number in ASCII (e.g., 65 for 'a' and 66 for 'b').
😀 When you type on a keyboard, the computer sends numbers, not letters, over the wire.
😀 The computer recognizes the numbers sent from the keyboard and translates them into characters.
😀 Colors in digital systems are represented by three numbers: red, green, and blue (RGB).
😀 Each color value in the RGB system can range from 0 to 255.
😀 The RGB system allows for a total of 16.5 million different color combinations.
😀 Digital systems use numbers to represent a vast range of data types, from text to colors, enabling effective processing and storage.

Q & A

What is the core way computers store and process data?
-Computers store and process data using numbers, specifically in binary form, which consists of ones and zeros.
How does a computer recognize the symbols we type on the keyboard?
-When we type on the keyboard, the computer doesn't store the symbols themselves, but rather stores the numbers associated with those symbols, which are then recognized by the computer.
What format is used globally to assign numbers to symbols?
-The ASCII format is used globally to assign numbers to symbols, where each symbol is represented by a specific number.
What number represents the letter 'A' in ASCII?
-In ASCII, the number 65 represents the letter 'A'.
What number corresponds to the letter 'B' in ASCII?
-In ASCII, the number 66 represents the letter 'B'.
How are colors represented in digital systems?
-Colors in digital systems are determined by three numbers representing the values of red, green, and blue (RGB).
What is the range of each color value in digital systems?
-Each of the red, green, and blue values can range from 0 to 255 in digital systems.
How many different possible colors can a computer represent?
-A computer can represent a total of 16.7 million different possible colors based on the combination of red, green, and blue values.
What is the role of binary numbers in data processing?
-Binary numbers (ones and zeros) are the fundamental way computers process and represent data, including symbols and colors.
Why is ASCII important in computing?
-ASCII is important because it provides a standardized way to assign numbers to characters, allowing for consistent communication between computers and other digital systems.