Modern computers, in standard configuration, are effectively locked to people who can only type with one finger or have visual and motor deficits. Luckily, buried deep inside Windows 95™ are some features that can allow just about anyone, with a single finger and lots of patience, to fully utilize their Windows 95™ PC without any specialized hardware or software. Disabled users may not be able use the mouse or multi-key commands (such as the famous used to reboot a computer). Some users might also have difficulty with the auto-repeat feature of the keyboard. Without perfect timing and coordination, and activation pressure, they might end up with a whole string of each letter they type. These are just some of the problems that might be encountered. Luckily, Windows 95™ includes tools to make the computer more accessible for the disabled. Best of all, these features are part of Windows 95™. You just have to find them.
Source: Extract from document introducction