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Peripherals Are:

Peripherals are interactive devices, connected to the computer that enter and extract information. Some examples of peripherals are: keyboard, mouse, monitor, printer, scanner, USB drive, webcam and headphones. To understand peripherals, it is important to have some basic knowledge of input and output. Input and output (sometimes referred to as input/output or simply I/O) refer, respectively, to the transfer of information in and out of the computer. Punched cards were the first input and output devices used by modern computer designers. They consisted of cardboard stock on which data was entered in the form of punched holes. Punched cards were bulky to store, carried limited data, and could be easily damaged. ("Computer input and output devices." UXL Science, UXL, 2008. Science in Context, Accessed 17 Nov. 2016.)

Input Output:

  • Input and output (sometimes referred to as input/output or simply I/O) refer, respectively, to the transfer of information into the computer and out of the computer.
  • Devices that help to input data into the computer are called input devices. Some input devices are operated directly by the user (e.g., keyboard, mouse, touch screen, joystick), while others are sensors or transducers that convert (usually analog to digital) external signals into data (e.g., microphone).

Output is information transmitted from the CPU to a device such as a monitor screen, printer, speaker, disk drive, or another computer on a network. Machines connected to a computer that help to output data are generally referred to as "output devices." ("Computer input and output devices." UXL Science, UXL, 2008. Science in Context, Accessed 17 Nov. 2016.)

A Short Intro to a Few Key Peripherals:

A keyboard, scanner and webcam provide input to the computer. The keyboard allows for data entry, while the scanner and webcam allow for entry of video or graphical images. The monitor, printer and headphones produce output from the computer. The monitor allows the user to view data, while the printer produces hard copies of data. Headphones output sound, and a USB drive provides both input and storage capabilities.  ("Computer input and output devices." UXL Science, UXL, 2008. Science in Context, Accessed 17 Nov. 2016.)

Screen Shot 2016-11-22 at 11.37.07 AM

A mouse or pet peripheral is a fairly new input device, first included with the Apple Computer Corporation's LISA microcomputer in 1983. It contains a rolling ball and a panel with one or more buttons. When it is rolled on a smooth, flat surface, several small, light-sensing diodes track the mouse's movements and the computer responds by moving the cursor on-screen accordingly. Mouses are particularly useful with graphics, painting, and design programs.(Flynn, Ida M. "Mouse." Computer Sciences, edited by K. Lee Lerner and Brenda Wilmoth Lerner, Accessed 17 Nov. 2016.)

Printers are the most common peripherals used purely for output, although technically, video displays and modems may also be considered output devices as well. One of the earliest printers was a line printer, developed in 1953 by the Remington Rand Company. Line printers produce entire lines of characters at a time using an engraved band or chain to strike a ribbon.("Computer input and output devices." UXL Science, UXL, 2008. Science in Context, Accessed 17 Nov. 2016.)

All Together Now:

Say you are writing an essay, as you type words, A keyboard, scanner and webcam provide input to the computer. The keyboard allows for data entry, and if you are going to include pictures in your essay, the scanner and webcam allow for entry of video or graphical images. When you finish (at last) it comes time to print your essay. Your mouse will send a signal to the printer when you click on the printer icon. A mouse or pet peripheral is a fairly new input device, first included with the Apple Computer Corporation's LISA microcomputer in 1983. It contains a rolling ball and a panel with one or more buttons. When it is rolled on a smooth, flat surface, several small, light-sensing diodes track the mouse's movements and the computer responds by moving the cursor on-screen accordingly. This command from the mouse will send a signal to the printer that indicates that it is time to produces hard copies of the data. Printers produce characters by striking against a ribbon are called impact printers. When you are finished, your essay will then be stored on the USB drive, another peripheral that has to capacity to both store data and provides input.

Moniter: http://wwstechnology.wikia.com/wiki/Monitor_2016-17_AV

Optical Drive: http://wwstechnology.wikia.com/wiki/Optical_Drive_2016-17_A

CPU: http://wwstechnology.wikia.com/wiki/CPU_2016-17_A

Three Links:

1. http://proxy.montgomerylibrary.org:2148/ic/scic/ReferenceDetailsPage/ReferenceDetailsWindow?disableHighlighting=false&displayGroupName=Reference&currPage=&scanId=&query=&source=&prodId=SCIC&search_within_results=&p=SCIC&mode=view&catId=&u=rock21695&limiter=&display-query=&displayGroups=&contentModules=&action=e&sortBy=&documentId=GALE%7CCV2646000284&windowstate=normal&activityType=&failOverType=&commentary=

2.

http://proxy.montgomerylibrary.org:2051/book/electrical-engineering/computer-engineering/9781483104256/chapter-4dot-inside-the-machine/48?query=((Computer+peripherals))#X2ludGVybmFsX0J2ZGVwRmxhc2hSZWFkZXI/eG1saWQ9OTc4MTQ4MzEwNDI1Ni80OA==

3.

http://proxy.montgomerylibrary.org:2148/ic/scic/ReferenceDetailsPage/ReferenceDetailsWindow?disableHighlighting=false&displayGroupName=Reference&currPage=&scanId=&query=&source=&prodId=SCIC&search_within_results=&p=SCIC&mode=view&catId=&u=rock21695&limiter=&display-query=&displayGroups=&contentModules=&action=e&sortBy=&documentId=GALE%7CCV2642250041&windowstate=normal&activityType=&failOverType=&commentary=

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