====== Operating An Overhead Projector ======

| **Field** | Business, Education |
| **Went Obsolete** | Still Used |
| **Made Obsolete By** | Powerpoint |
| **Knowledge Assumed** | None |
| **When useful** | As a Backup to Powerpoint, Some instructors still use them heavily |

This is widely used in American universities, with many professors believing transparencies are far superior to powerpoint. It is not at all an obsolete skill.