From OtherSpace: Encyclopedia Galactica
The datajack, more formally known as the Infomatrix Access Neural Link, is what makes a direct connection to the Infomatrix possible. Invented in 3570 on Sivad to work with the newest iteration of computer networking technology at the time, it has, like the Infomatrix itself, lasted to the modern day. The Datajack is also able to do anything a Appliance Control Utility can, due to their similar technology.