This is how you handle computers and other computer-operated devices (digital cameras, pdas, smartphones, etc.) You can handle operating systems, databases, and common operations over the internet. At the highest levels, you can hack into existing software and connected devices. You also have an understanding of computer networks on a software level and can possibly track and modify packets with the right tools. This skill can be combined with Visual Arts to produce computer graphics, and that's just one example.
Although unavailable in ancient times, one is hard-pressed to imagine a more important skill today.