Desktop Computer emoji is the picture of a stationary computer (unlike the one represented by 💻 Laptop Computer emoji). It may be either a computer case alone or together with a display. The emoji may be used in any meanings related to the situations where the actual desktop computers of similar type are used like working in the office, gaming, or, less often, studying.
Examples of using
“Got a new upgrade for my setup 🖥️”
“One more day in the office 🖥️”