Peripheral Devices What They Are and How They Are Used.

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Slide 1 Peripheral Devices What They Are and How They Are Used. Slide 2 Peripheral Devices I.What is a Peripheral Device? Any item connected to a computer but is secondary in relation to the CPU. A. Internal Operates inside the case B. External Operates outside the case Copyright Texas Education Agency, 2013. All rights reservd. 2 Slide 3 Peripheral Devices II.Peripheral devices can be used for A.Input Used to receive data B.Output Used to send data C.Storage Used to store data Copyright Texas Education Agency, 2013. All rights reserved. 3 Slide 4 Peripheral Devices III.Types of Signals: A.Analog Stream of data that we see and hear B.Digital Estimates analog data using only ones and zeros; on or off (aka the Binary System) Copyright Texas Education Agency, 2013. All rights reserved. 4 Slide 5 Peripheral Devices IV.Common Internal Devices A. Input Microphone B. Output Speakers C. Storage Hard drive, DVD+RW 5 Slide 6 Peripheral Devices V.Common External Devices A.Input Keyboard, Mouse B.Output Monitor, Printer, CNC C.Storage Hard drive, DVD+RW Copyright Texas Education Agency, 2013. All rights reserved. 6 Slide 7 Peripheral Devices VI.Specialized Peripheral Devices: A.ISDN Integrated Services Digital Network: Allows computers to communicate through telephone wires (Analog Digital) B.CNC/NC Computer Numeric Control: Computer programs control and monitor machinesoperations Robots Mills/looms CNC machining Copyright Texas Education Agency, 2013. All rights reserved. 7 Slide 8 Peripheral Devices VII.Types of Peripheral Uses: A.Business A commercial enterprise or establishment 1.Price scanners 2.Office machines 3.Credit card readers 4.Security systems 5.Others? Copyright Texas Education Agency, 2013. All rights reserved. 8 Slide 9 Peripheral Devices B.Industry The sector of an economy made up of manufacturing, trade and services 1.Manufacturing a.CNC machining b.Automated or robotic welding c.Computer controlled warehouses d.Others? Copyright Texas Education Agency, 2013. All rights reserved. 9 Slide 10 Peripheral Devices 2.Law Enforcement a.Bomb/explosives handlers (robots) b.Others? 3.Military a.Computer-controlled surveillance aircraft b.Others? Copyright Texas Education Agency, 2013. All rights reserved. 10 Slide 11 Peripheral Devices 4.Science a.Space Robots travel on the surfaces of moons or planets, take pictures, collect samples, etc. b.Medical Computer-controlled robotic surgery, digital X- ray screens c.Others? Copyright Texas Education Agency, 2013. All rights reserved. 11 Slide 12 Peripheral Devices C.Personal 1.Home computer 2.Security systems 3.Utility control Copyright Texas Education Agency, 2013. All rights reserved. 12 Slide 13 Take out a sheet of paper or open a new word document and answer the following questions in complete sentences based on your opinions. 1.What do you think is the most interesting peripheral device? 2.What do you think is the most essential peripheral device? 3.What do you think is the least interesting peripheral device? 4.What do you think is the least essential peripheral device? 5.Which peripheral devices are mostly used by (Name 3 for each) The business sector? Industry? The private sector (individuals)? 6. Which peripheral devices are used by all 3 sectors (Name 3)? 7.Which peripheral devices do you think that a computer could run without (Name 3)? 8.Which peripheral devices can be removed and substituted with another device (Name 3)?

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