special pointing devices and keyboards,
such as this very small Tash keyboard
laptop computers, including cases, buttons,
screens, batteries, and keyboards
Windows computers, usually on-site, including
hardware problems of all types
software problems, such as a "missing" USB.INF file, which disabled all USB ports on this computer
(Vista suddenly couldn't find the file until I copied it to the right place - two folders over.)
devices for people who are blind or low-vision,
including Braille 'n Speaks, braille printers,
speech synthesizers, and even Perkins braillers
Macintosh computers, including hardware and
software problems
electronic equipment of all kinds
(a Comfort Keyboard control box)
porch lifts (miswired at the factory)
and other mobility devices
unusual items, like this new $700 bidet seat
(broken mounting plate and bolts - a new one
would have broken in the same places)
Replacing a failing hard drive includes moving as many files as possible to a new drive. In this case, I got all of them before the old drive permanently quit.