user friendly

trait of a computer program or instrument with a wide scope which testifies that using and learning how to use it is easy and comfortable even to one who has never used it before

adj. easy to use, easy to manage, easy to understand

User Friendly is a daily webcomic about the staff of a small, fictional internet service provider, Columbia Internet. The strip's humor tends to be centered around technology jokes and geek humor. Drawn and authored by J.D. Frazer, a.k.a. "Illiad", it has been running since November 17 1997.User Friendly is now published in a variety of newspapers.
See more at Wikipedia.org...

Usability is a term used to denote the ease with which people can employ a particular tool or other human-made object in order to achieve a particular goal. Usability can also refer to the methods of measuring usability and the study of the principles behind an object's perceived efficiency or elegance.
See more at Wikipedia.org...

Adjective
1. easy to use
(similar) easy

Programmer-hostile. Generally used by hackers in a critical tone, to describe systems that hold the user's hand so obsessively that they make it painful for the more experienced and knowledgeable to get any work done. See menuitis, drool-proof paper, Macintrash, user-obsequious.
[Jargon File]

products and services that the consumer finds easy to use. This is the test facing the marketers of new technology.