Perhaps he's reading an interesting article or looking at pictures. The possibilities are endless based on the storyline and the creator's imagination.
It could be a guy working on a project, maybe doing some office work or designing something.
It could be various. Maybe he's focused on work, playing games, or chatting with friends.
It could be very exciting, with the guy fully focused on the screen, intense expressions, and maybe some cool special effects around.
The scene might show the guy typing rapidly, with various icons and windows open on the computer screen. Maybe there's also some background elements like a messy desk or a favorite poster on the wall.
Often, it might depict the old man struggling to keep up with technology, frowning at the complexity of the computer interface.
It could be a peaceful and relaxing scene with the old guy enjoying a quiet moment.
The guy might have a concentrated look on his face, with his eyes fixed on the screen.
One option is to adjust the display settings on your computer. Change the color settings, contrast, and maybe even the resolution to achieve a more cartoonish effect. Also, there are some software programs specifically designed for creating cartoon-like displays that you could install.
Well, a white computer screen cartoon could have a very modern and sleek look. It might use shading and highlights to add depth, and the characters or objects could stand out clearly against the white background. Also, the style could be very flat or have a touch of 3D for a unique effect.
It could be a peaceful and relaxing scene, with the old guy looking comfortable and at ease.