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

Figure 1 shows an image of a black cat. The image is made up of one-bit pixels. 1 represents the color white, whereas 0 represents the black region. In the exercise below, you are given this image as a two-dimensional NumPy array. Your job is to invert the input image by swapping the white pixels with the black pixels and returning the new image in `im2`. Write your code in the `swap` function. Run the code once without modifying anything to display the original image.  

This lesson is an exercise on bitwise image processing.

Computer basics

Hardware and Software Components of a Computer

Data Representation in Python

Image, Audio, and Video Representation in Python

Data Compression

Bitwise Image Processing Exercise 1

Exercise: Lift the black cat curse