Information Systems for Business and Beyond (2019)

to input data. Early computers simply used a keyboard for entering data or select an item from a menu to run a program. With the advent operating systems offering the graphical user interface, the mouse became a standard component of a computer. These two components are still the primary input devices to a personal computer, though variations of each have been introduced with varying levels of success over the years. For example, many new devices now use a touch screen as the primary way of data entry. Other input devices include scanners which allow users to input documents into a computer either as images or as text. Microphones can be used to record audio or give voice commands. Webcams and other types of video cameras can be used to record video or participate in a video chat session.

Output Devices

Output devices are essential as well. The most obvious output device is a display or monitor, visually representing the state of the computer. In some cases, a personal computer can support multiple displays or be connected to larger-format displays such as a projector or large-screen television. Other output devices include speakers for audio output and printers for hardcopy output.

Sidebar: Which Hardware Components Contribute to the Speed of Your Computer Information Systems for Business and Beyond (2019) pg. 33 The speed of a computer is determined by many elements, some

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