A tower may refer to any of the following:
1. A computer case which arranges the internal components vertically. Towers are a common style of case design because they allow heat to rise and escape more easily, while also providing easy access to components within the computer. There are various sizes of towers. The picture to the right is an example of a standard or mid-size tower case used with the Dell Precision 390 (courtesy of Dell Inc.). Other types of tower cases include mini-sized towers, which are smaller than a mid-sized tower, and full-sized towers, which are taller and feature more expansion bays.
2. A tower may also refer to a cell tower.