On-Screen Keyboard Portable makes it easy to access Windows' built-in On-Screen Keyboard on any system you come across. It remembers your settings for sound, hover to select or click to select, always on top, keyboard layout and more as you move from PC to PC. And the icon sits right in your PortableApps.com Menu for easy access. For earlier operating systems that lack a built-in on-screen keyboard (Windows 95/98/Me) it even includes a simple virtual keyboard that, while lighter on accessibility features, is still useful.
WiViK on-screen keyboard (virtual keyboard) software by Bloorview Kids Rehab provides access to any Microsoft Windows application as an alternative to a standard computer keyboard. WiViK has been an internationally recognized assistive technology solution since 1991.
A virtual keyboard is a software and/or hardware component that allows a user to enter characters. A virtual keyboard can usually be operated with multiple input devices, which may include an actual keyboard, a computer mouse, a headmouse, and an eyemouse. On a desktop PC, the primary purpose of a virtual keyboard is to provide an alternative mechanism for disabled users that can not use a physical keyboard.
OSKs are a form Assistive Technology (AT), which is a generic term that includes assistive, adaptive, and rehabilitative devices. AT promotes greater independence for people with disabilities by enabling them to perform tasks that they were formerly unable to accomplish, or had great difficulty accomplishing, by providing enhancements to or changed methods of interacting with the technology needed to accomplish such tasks.