1 KeyBoard:
1 KeyBoard
Slide 3:
Keyboard One of the main input devices used on a computer, a PC's keyboard looks very similar to the keyboards of electric typewriters, with some additional keys. Below is a graphic of the Saitek Gamers' keyboard with indicators pointing to each of the major portions of the keyboard Finally, today most users use the QWERTY style keyboards. Below is a graphic illustration of where each of the keys are on a U.S. QWERTY style keyboard
2 Mouse :
2 Mouse
Mouse:
Mo use A hardware input device that was invented by Douglas Engelbart in 1963 , who at the time was working at the Stanford Research Institute, which was a think tank sponsored by Stanford University. The mouse allows an individual to control a pointer in a graphical user interface ( GUI ). Utilizing a mouse a user has the ability to perform various functions such as opening a program or file and does not require the user to memorize commands, like those used in a text-based command line environment such as MS-DOS . In the picture to the right, is a picture of a Microsoft IntelliMouse and is an example of what a computer mouse may look like. The Mouse was originally referred to as an X-Y Position Indicator for a Display System. Xerox later applied the mouse to its revolutionary Alto computer system in 1973 . However, because of Alto's unfortunate success, it was first widely used in the Apple Lisa computer. Today, a pointing device is found on virtually every computer. How a mouse may interface with a computer Bluetooth Infrared PS/2 Port Serial Port USB When and who invented the first computer mouse? Computer mouse help and support. Computer mouse and other hardware tips. Also see: Click , Double-click , Input device , IntelliMouse , J- Mouse , Mouse definitions , Mouse pad , Mouse potato , Pointing device , Right -click , Serial mouse , Touchpad , Trackball , Wheel mouse
3 Scanner:
3 Scanner
Slide 7:
Hardware input device that allows a user to take an image or text and convert it into a digital file, allowing the computer to read or display the scanned object. A scanner is commonly connected to a computer USB , Firewire , Parallel or SCSI port . In the picture to the right, is an example of a flatbed photo scanner, the Epson V300. Other scanners include: sheetfed scanner , w hich is a scanner that scans paper fed into it, handheld scanner , which is a scanner that is held and drag over a page to scan it, and a card scanner , which is a small scanner capable of scanning business cards.