There are features that are important in any computer purchase that are not specific to rugged, mobile computers. Some of the most common are:

- Microprocessor speed in MHz or GHz.
- RAM memory in MB or GB.
- Hard disk drive storage capacity in GB.
- Video card or video chip.
- Video RAM in MB or GB.
- Additional, removable hard disk drive.
- CD, DVD and/or floppy media drives.
- Modem.
- Ethernet LAN (RJ-45).
- USB ports.
- Serial ports (RS-232).
- Firewire port (IEEE 1394).
- PS/2 keyboard/mouse port.
- Bluetooth wireless.
- PCMCIA slot (PC Card slot).