INPUT AND OUTPUT DEVICES. Blu-ray disc Graph plotter Graphics tablet Optical mark reader Projector Web cam

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INPUT AND OUTPUT DEVICES 1. Ring two items which are output devices. Blu-ray disc Graph plotter Graphics tablet Optical mark reader Projector Web cam Graph plotter and projector 2.

1 INPUT AND OUTPUT DEVICES 1. Ring two items which are output devices. Blu-ray disc Graph plotter Graphics tablet Optical mark reader Projector Web cam Graph plotter and projector 2. Draw five lines on the diagram to match the input device to its most appropriate use Input device Use Remote control Inputting freehand drawings into a computer Keyboard Operating a television Touch screen Entering text when writing a book Chip reader Selecting options in a tourist information kiosk Graphics tablet Reading information from a credit card Remote control- operating a television Keyboard- entering text when writing a book Touch screen selecting options in a tourist information kiosk Chip reader- reading information from a credit card Graphics tablet inputting freehand drawings into a computer 3. Name the output devices A, B, C and D using the words from the list. Buzzer Dot matrix printer DVD RAM Laser printer Monitor Multimedia projector Pen drive Speakers A- Multimedia projector B-Laser printer C-Dot matrix Printer D-Speakers

2 4. Draw five lines on the diagram to match the input device to its most appropriate use. Input device Use Bar code reader Inputting voiceovers into presentation software Microphone Selecting options from a list Mouse Inputting a PIN at an ATM Numeric key pad Inputting data from a school register Optical mark reader Inputting code numbers from products at a POS terminal Barcode reader- inputting code numbers from products at a POS terminal Microphone inputting voiceovers into presentation software Mouse- selecting options from a list Numeric keypad- inputting PIN at an ATM Optical mark reader- inputting data from a school register 5. When surgeons operate on patients they sometimes need to use computers. Give two reasons why they would use a light pen as an input device. As surgeons use gloves it will be difficult to control other devices. It is easier to keep clean than other devices 6. Name the input devices A, B, C and D using the words from the list. A- Remote control B-Touch Pad C-Webcam D-numeric keypad

3 7. Complete each sentence below using one item from the list. A-Temperature sensor B-Chip reader C-Joystick D- Digital camera E-OMR 8. A group of car mechanics has decided to buy a new printer for their workshop. Discuss the different options which are available in terms of a laser printer, inkjet printer and dot matrix printer. Laser printer/inkjet printer higher quality output than Dot matrix printer Laser printer/inkjet printer produce faster output than Dot matrix printer Laser printer/inkjet printer are relatively quiet compared to Dot matrix printer Laser printer/inkjet printer is susceptible to break down in oily/dirty conditions but Dot matrix printer is less likely to break down in oily/dirty conditions Laser printer/inkjet printer has more expensive running costs than dot matrix. Laser printer/inkjet printer are cheaper to buy than dot matrix Inkjet printer.

4 9. Name the output devices A, B, C and D using the words from the list A-TFT Monitor, B-CRT Monitor, C-Inkjet printer, D-graph Plotter 10. Complete each sentence below using one item from the list. A) OCR, B)Webcam, C)Inkjet Printer, D) Motor, E)barcode reader

5 11. A school librarian is preparing a slideshow to explain to students how the library works. Tick three items she could use to prepare and show the slides. A multimedia projector, remote control, presentation software 12. Draw four lines on the diagram to match the use to its most appropriate input device. To input data at an information kiosk touch screen To input data from a product in a supermarket- barcode reader To input a PIN- numeric keypad To input freehand drawings- graphics tablet 13. A car manufacturer has laser printers, graph plotters and dot matrix printers. Explain why each of these is used. Laser printer Produce High quality output Fast output Relatively quiet To print out invoices/letters etc. Relatively cheap to buy Graph plotter High quality output Capable of very large printouts

6 Print out car designs Dot matrix printer Cheaper running costs Can work in industrial environment. Can make instantaneous copies Can print continuously Requires multipart stationery Can print pay slips 14. Name the input devices A, B, C and D using the words from the list. A- Tracker ball, B-scanner, C-Chip reader, D-Joystick 15. Complete each sentence below using one item from the list. A bar code reader A dot matrix printera graph plotter A graphics tablet A microphone A multimedia projector A pressure sensor A speaker A touch pad A web cam

A. graph plotter B. Projector C. Pressure sensor D. Touchpad E. Microphone 16. Draw four lines on the diagram to match the use to its most appropriate output device.

7 A. graph plotter B. Projector C. Pressure sensor D. Touchpad E. Microphone 16. Draw four lines on the diagram to match the use to its most appropriate output device. To produce high quality hard copy- laser printer To print on multipart forms- dot matrix printer To move objects in a computer controlled system- motor To output voiceovers- speakers 17. A geography teacher wants to use a computer to monitor the weather conditions using the school weather station. a. Name three sensors in the weather station. Pressure sensor, temperature sensor, moisture sensor b. Explain why computers are unable to read the data directly from these sensors. Computers work with digital data. Sensors produce analog data C. What device is needed to enable the computer to read the data? analog to digital computer

8 18. A payroll office, which prints out large numbers of payslips every month, has decided to install a new printer. Discuss the advantages and disadvantages of using a laser printer, an inkjet printer or a dot matrix printer in this office. Laser printer advantages Fast output Relatively quiet Cheap to buy compared to dot matrix printer Laser printer disadvantages More expensive running costs than dot matrix Inkjet printer advantages Faster output than dot matrix printer Relatively quiet compared with dot matrix printer Cheap to buy Inkjet printer disadvantages Ink more expensive than dot matrix Ink needs changing regularly on long print runs Difficult to print a sealed secure payslip Dot matrix printer advantages Cheaper running costs Continuous paper feed available Can print multi part forms Can print through a payslip cover Can produce carbon copies High quality is not needed when printing payslips Dot matrix printer disadvantages More expensive to buy Noisy Relatively slow 19. Ring two items which are output devices. Buzzer, Plotter

9 20. Name the output devices A, B, C and D using the words from the list. A- Multimedia projector B-Speakers C-Motor D-Dot Matrix Printer 21. Complete each sentence below using one item from the list. A. Graphics Tablet B. A Pressure sensor C. Tracker ball D. Graph Plotter E. Buzzer

10 22. Draw four lines on the diagram to match the use to its most appropriate input method. To input text from a printed document- OCR To input data from a bank cheque- MICR To input data from a bank card- chip reader To input data from a product at a POS- barcode reader 23. Ring two items which are input devices. Graphics tablet, touchpad Name the devices A, B, C and D using the words from the list.

11 A.Microphone B. Scanner C. Pen drive D. webcam 24. Many homes now have microprocessor controlled burglar alarm systems. Name two sensors used in such a system and for each explain what it is used for. A. movement or proximity sensor- detect movement Sound sensor detect any noise made Light sensor- detect break in light 25. Complete each sentence below using one item from the list. A. Barcode reader B. Laser Printer C. Temperature sensor D. Graphics Tablet E. Speaker

26. Draw four lines on the diagram to match the use to its most appropriate output device To produce very large high quality hard copy- Plotter To display data from a computer on to a large screen

12 26. Draw four lines on the diagram to match the use to its most appropriate output device To produce very large high quality hard copy- Plotter To display data from a computer on to a large screen multimedia projector To alert mobile phone users to incoming calls- buzzer To output multipart forms- dot matrix printer 27. OMR, OCR and MICR are methods of direct data entry. Describe each method, giving an example of an application where each might be used OMR: stands for Optical Marks Recognition. It identifies the pen or pencil marks made. Used in exam papers or school registers. OCR: stands for Optical Character Recognition. It identifies the characters in a scanned document and converts to text for use with other software. Used in processing passports, id cards etc. MICR: stands for Magnetic Character Recognition. It recognizes the characters written in magnetic ink and compare with characters stored in computer. It is used to process bank cheques. 28. Name the methods used to represent information on A, B, C and D using the words from the list.

13 A- Magnetic Stripe B-Chip C-Optical Marks D-Bar code 29. Ring two items which are output devices. Buzzer, Monitor 30. Complete the following sentences using the most appropriate device from this list. A. MICR B. OCR C. OCR D. OMR

14 A. Microphone B. Remote control C. Keyboard D. chip Reader E. Joystick 31. A printer that uses a toner Laser A printer that uses continuous stationery- dot matrix A printer that can be used to make physical models- 3D A printer that prints layer by layer 3D 32. A farmer has purchased a computerized feeding system for her goats. A goat has a RFID tag attached to its ear which is recognized by the computer. The system uses a passive RFID tag. A. Describe how the RFID can be activated. A. RFID reader sends radio waves to the RFID antenna in the tag. Tag sends radio waves back to reader. Radio waves move from antenna to the chip. A signal is generated and sent back to the RF system B. The system recognizes the goat and therefore gives the second feed to the animal. Describe how RFID technology could be used to give the correct feed to the animal. Goat passes the RFID reader. RFID reader extracts data from the tag. The ID is compared with data in the database. The feed for the goat is then selected. 33. Automatic car parking systems built into cars are becoming more common. They allow the car to park safely in a parking bay unaided. The car uses proximity sensors fitted to the front and rear of the car to help it park. There are many advantages to using these sensors. a. Give the disadvantages of using proximity sensors this way. A. sensors can drain power from the car. The sensors need to be turned off in the traffic jam. If the car s computer malfunction sensor won t work.

15 34. Complete the following sentences using the most appropriate words. A. numeric keypad B. Interpreter C. 3D Printer D. Speaker 35. Circle the input devices. Mouse, Remote control, touch Screen 36. Complete the following sentences. A. system B. Application C. Printer D. Compiler

16 37. Tick the most appropriate device reading the details from the following media. Debit card- Chip and pin reader Bank cheques- MICR A candidate s responses for multiple choice examinations- OMR A label on a can of soup- bar code reader 38. Tick whether true or false. A. True B. True C. false D. false 39. A school library has computerized its book borrowing system. Students are allowed to borrow books free of charge. a. When a book is borrowed the details of the book and the borrower have to be input to the system. Tick three direct data entry devices which could be used in such a system.

17 Bar code reader, magnetic stripe reader, RFID Chip reader 40. A school is holding an athletics competition. The timings of each running event will be measured electronically using sensors at the start and finish. Runners begin a race in starting blocks. When the starting pistol is fired the electronic timing starts. The winner of the race is the first to break the light beam at the end of the race. Complete the table using the most appropriate words from the list below Data from starting pistol is read by this device- sound sensor This device detects that the athlete has left the starting block- pressure sensor When the light beam is broken the data is read by this device- infra-red sensor 41. When a person buys goods in a supermarket they have to pay at the checkout. a. Identify two input devices used at the checkout. Keypad/touchscreen/barcode / scanner/ chip reader

18 b. Identify two output devices used at the checkout. Printer/ Monitor/ Speaker/ Buzzer 42. There are many types of printer. Name the printer which best fits the descriptions given below. A- Dot matrix b- Inkjet C- Laser D-3D 43. Tick whether true or false A. true B. false C. false D. true

19 44. Tick whether the following are examples of impact printers or non-impact printers Dot Matrix Printer- Impact Inkjet, Laser, 3D- non-impact 45. An automatic washing machine contains a device to read RFID chips sewn into clothing. When an item of clothing is placed in the washing machine it is scanned. a. Describe how the data is read from the RFID chip. washing machine sends out radio signal to read the data from RFID. They act as a passive transponder. b. Explain the benefits of using RFID technology in a washing machine. it stops clothes being incorrectly washed. it allows wash cycle to set automatically know the amount of water to use avoiding wastage. 46. Complete the following sentences, using items from the list below. A. barcode reader B. microphone C. Magnetic Ink character Recognition D. Retina Scanner

20 47. 3D printers are being used for producing personalised prescription drugs. a. Give two advantages of using 3D printers for this purpose. Tablets can be customized to individual needs Created as needed therefore reducing waste Patient gets the drugs quicker b. Give two disadvantages of using 3D printers for this purpose. Cost of buying the printer is expensive Materials are expensive Can be used for illegal production of drugs 48. Different devices connected to the computer have a number of different characteristics A. Dot Matrix Printer B. thin Film Transistor C.3D Printer D. touch screen

21 49. Tick whether true or false A. true B. true C. false D. false 50. When a person buys goods in a supermarket they have to pay at the checkout. a. Identify two input devices used at the checkout. Keypad/touchscreen/barcode / scanner/ chip reader b. Identify two output devices used at the checkout. Printer/ Monitor/ Speaker/ Buzzer 51. Tick whether the following are examples of impact printers or non-impact printers Dot Matrix Printer- Impact Inkjet, Laser, 3D- non-impact

22 52. An automatic washing machine contains a device to read RFID chips sewn into clothing. When an item of clothing is placed in the washing machine it is scanned. a. Describe how the data is read from the RFID chip. washing machine sends out radio signal to read the data from RFID. They act as a passive transponder b. Explain the benefits of using RFID technology in a washing machine. it stops clothes being incorrectly washed. it allows wash cycle to set automatically know the amount of water to use avoiding wastage. 53. Complete the following sentences, using items from the list below. A. barcode reader B. microphone C. Magnetic Ink character Recognition D. Retina Scanner 54. 3D printers are being used for producing personalised prescription drugs. a. Give two advantages of using 3D printers for this purpose. Tablets can be customized to individual needs Created as needed therefore reducing waste Patient gets the drugs quicker b. Give two disadvantages of using 3D printers for this purpose. Cost of buying the printer is expensive Materials are expensive Can be used for illegal production of drugs

23 55. Different devices connected to the computer have a number of different characteristics A. Dot Matrix Printer B. thin Film Transistor C.3D Printer D. touch screen 56. Data can be input to a computer using different devices. Write down the most appropriate input device which will enable you to: A. Keyboard B. Mouse C. Temperature sensor D. Joystick

24 57. A student exam answer sheet consists of boxes or lozenges which the student shades in to indicate their choice of answer. Apart from the details of the test and the lozenges, give two items of information, essential to the student, that are pre-printed on the answer sheet. a. Describe how Optical Mark Recognition is used to process the details from the form. Student ID Number, Student name B. Dedicated scanner device shines a beam of light onto the form. Light is reflected back to the sensors.marks reflect less light. So sensors are used to identify position of marks. Computer compares these with correct answer positions b. Describe the drawbacks of using Optical Mark Recognition. If the marks don't fill the space completely they may not be read correctly. If the marks are not in a dark enough pencil they may not be read correctly If more than one lozenge shaded in result is invalidated Write down the most appropriate input device which matches the following descriptions: A. Touchpad b. Joystick C. Keyboard D. scanner 58. When a bank cheque is presented to a bank it is sent off to a cheque clearing centre. a. Give three items of information that are pre-printed on the cheque in magnetic ink. Account number, Bank Code, Cheque number b. Describe how MICR is used to read these details from the cheque. It requires a special Magnetic Ink Character reader. Details are scanned.the magnetic ink on the cheque passes over a magnet in the reader which magnetizes the ink.the MICR reader then reads the magnetic signal given out by the magnetic ink characters on the cheque. Each character produces a unique signal which is read and translated by the MIC reader.

25 c. Explain why magnetic ink is used rather than bar codes on a cheque. More difficult to forge Even if overwritten/damaged the information can still be read by computer 59. Data can be input to a computer using direct data entry methods. Write down the most appropriate device to input the following: A. RFID Reader B. OCR Reader C. Chip reader D. Magnetic stripe reader 60. Tick whether the following statements about output devices are true or false A. true B. true C. false D. false

26 61. In certain countries, the RFID chip in a passport is scanned when the passport is presented at an automated passport control gate. a. Give three items of information about the passport holder that are stored on the RFID chip. Name, Passport number, Date of birth b. Describe how RFID technology reads the details from the chip. The chip is presented near a computer with a radio-frequency scanner. The scanning antenna puts out radiofrequency signals in a relatively short range. It provides a means of communicating with the transponder/the RFID tag. c. Explain why RFID technology is used for reading data from passports More secure than a traditional passport as biometric measurement data is difficult to forge More rapid flow at security check points/quicker than reading it manually 62. Describe how RFID will be used as he passes through passport control. A. Keyboard B. Scanner C. Webcam D. Keyboard

27 63. Complete the sentences A.Touchpad B.Touch screen C.Tracker ball A. Tick the most appropriate output device for each of the following applications. A. laser printer B. graph plotter C. dot matrix printer D. dot matrix printer

28 B. Complete the sentences A. joystick B. RAM C. Magnetic tape C. Tick the most appropriate method of inputting data for the following uses. D. This diagram shows a laptop computer being used in a measuring experiment. a. Name two input devices shown in the diagram apart from keyboard A. touchpad, sensor b. Name two output devices Printer, screen

29 E. Tick the most appropriate method of inputting data for the following uses A. MICR B. Sensor C. Tracker ball D. sensor F. Complete the table by identifying the most appropriate output device for each type of application. A. inkjet printer B. Dot Matrix Printer C. Laser Printer D. Graph Plotter

INPUT AND OUTPUT DEVICES ANSWER KEY

INPUT AND OUTPUT DEVICES ANSWER KEY 1. Graph plotter and projector 2. Remote control- operating a television Keyboard- entering text when writing a book Touch screen selecting options in a tourist information