Explore how computer systems store, manipulate, and convert various data types like text, images, and videos through integrated software and hardware. Gain insights into accessible data representation.

Computer systems do not understand human instructions, nor can they perceive real-life data in its raw form. Therefore, computer systems require a way to store and represent information in an accessible way. They use software and hardware components combined to help retrieve information, store it, manipulate it, and convert it back to a human-accessible format. If you want to learn how computer systems perform complex tasks such as storing and manipulating textual data, videos, music, images of your cat, and much more, this course is meant for you.

Information Representation in Computer Systems

The different colors are represented by different intensities of red, green, and blue channels, as shown in the figure. For an eight-bit pixel, each of these three intensities ranges from 0 to 255. Therefore, each channel requires 8 bits from memory. The following figure shows how black and white pixels are stored in memory. The top, middle, and bottom rows represent the intensity of the red, green, and blue channels, respectively. 

Altogether, a stream of 24 bits is required to represent a color in one pixel. 

Learn how color codes can be presented more compactly in hexadecimal format.

Computer basics

Hardware and Software Components of a Computer

Data Representation in Python

Image, Audio, and Video Representation in Python

Data Compression

Hexadecimal Color Codes

Color representation in memory