What does a schematic diagram typically use in place of actual images?

A schematic diagram typically employs special symbols to represent components and functions within a system instead of actual images. These symbols are standardized, which allows for consistent interpretation of the diagram across different contexts and users. The use of symbols ensures that complex information can be conveyed clearly and concisely, making it easier to understand how different parts of a system interact with one another.

By utilizing symbols, schematic diagrams maintain clarity and focus on the relationships and functions rather than getting bogged down by realistic representations of components, which can complicate the overall understanding. For example, in electrical schematics, symbols represent various components such as resistors, capacitors, and power sources, thus allowing engineers and technicians to analyze and troubleshoot systems efficiently.