By using a joystick or a pointing device, an on-screen keyboard allows people with mobility impairments to type data. The second sentence states that the on-screen keyboard is the one that uses the joystick or pointing device to allow impaired people to type data.
The basic Italian keyboard layout as shipped with Windows 7 has no way of typing the backtick (`) or the tilde (~). I checked this using Microsoft Keyboard Layout Creator (MSKLC), with that layout loaded into it. I presume that this layout is more or less standard in Italy, though of course Microsoft might have its own oddities here. However, in Windows 7, there is a somewhat different layout ...
The keyboard shortcut that enabled this was to hold the right shift key for eight seconds, something that a cat could easily do. What it did was not disable the keyboard, but enable filter keys, an adaptation designed for people with Parkinsons or the equivalent who hit keys multiple times when they only want to hit once.
Some programs (e.g. ms html help viewer) have zoom-in features that only seem to work when you mouse wheel scroll. Is there a way to emulate mouse wheel scroll using the keyboard?
For the past nine years, a few gadgets have been a constant part of my life: earbuds/headphones, MacBooks, cameras, keyboards and mice. I don't think I've gone a single day without using a keyboard.
Something is a pronoun, which is analogous to "a thing", that is an indefinite pronoun. "A/an" is the Old English for "one" and one implies singularity. Thus, I found a thing that wasn't working. I found something that wasn't working. are the same in meaning, but 'something' is the commonly used version. To pluralise your sentence, I would say: "Some things that are not working." "Some things ...