Like the personal computer, the dive computer includes hardware and software.
Computer hardware contains the following main parts:

1. Depth sensor senses the water pressure and converts it digitally to depth.
2. A Digital clock - counts the dive time (bottom time).
3. Display – shows the various data, such as diving depth, bottom time water temperature and more.
4. buttons – with which you can adjust the computer and browse through the various screens on the display.
5. The Microprocessor that integrates all computer operations.
6. Battery – The power source needed to operate the computer.

The computer program is in the memory component of the processor. The software includes the mathematical model (algorithm) according to which the bottom times are calculated during the dive. The diving computer is a "smart" decompression table, constantly updated with time and depth data, and with the help of the embedded algorithm the diving data is processed into information transmitted to the diver.