Evolution Of Input Devices
Over the years, computer peripherals like the mouse, keyboard, webcams etc have evolved. In this article we discuss this evolution that has happened for the better.
Keyboards are still the most dominant means of getting most textual and numeric data into a computer. The developments that have taken place have involved the inclusion of more special function keys, wireless technology, and improvements to assist with display screen equipment. For example, early IBM PC keyboards, although extremely robust, had such solid keyboard switches that many people who typed on them all day eventually developed repetitive strain injury problems. In contrast, modern keyboards require a far lighter touch.
Mice and pointing devices are the other dominant form of computer input devices. Stanford Research Institute in the 1960’s introduced the first mouse which was made of wood. The basic principle of moving around a small, buttoned device to in turn position and select with a pointer on a computer screen remains unchanged to this day. What has changed is the variety available. Many are mouses are now wireless, while others have evolved into pads or trackballs built into laptop computers.
Webcams and digital cameras have also significantly expanded over the past ten years the way that a great many people work with and think about computers. Digital photography is now commonplace, with the uploading of images onto a PC for e-mailing, sharing over the web, or printout is now the norm.
Webcams remain devices primarily designed for capturing videos directly or to enable desktop videoconferencing. Mobile phones of course also share these capabilities. Developments like Microsoft’s surface computer will also make it easier and easier to share both still and moving images between computers and mobile phones or any other devices in the future.