characterized by or involved in active personal participation in an activity; individual and direct: a workshop to give children hands-on experience with computers.
requiring manual operation, control, adjustment, or the like; not automatic or computerized: The hands-on telephone switchboard is almost obsolete.
Origin of hands-on
First recorded in 1965–70; by analogy with hands-off
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
involving practical experience of equipment, etchands-on training in the use of computers
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
also hands on, as an adjective, by 1969.
Online Etymology Dictionary, © 2010 Douglas Harper