1.1 input devices
Download as PPTX, PDF8 likes3,283 views
The document discusses various input devices and their advantages and disadvantages. It covers keyboards, mice, joysticks, touchscreens, scanners, cameras, microphones, sensors and more. For each device it lists 2-3 advantages and 2-3 disadvantages in point form. The overall document provides an overview comparison of different input devices.
1.1 input devices
- 1. Back to Input Hyper linking Devices
- 2. Back to Input Devices
- 4. Click for: Back to Input Devices
- 5. Advantages Disadvantages They allow us to enter in correct The Qwerty and Dvorak data, checking the monitor as we keyboards ease depends on the go along user. Data can be entered quickly It isn’t as quick as using a MICR or OMR. It is a strong device (Robust) Takes up space. The concept keyboard can be of particular use to people with disabilities Back to Input Devices
- 6. Advantages Disadvantages They take up less space and Due to their small size, are easy to carry around. entering the numbers may be difficult. Easier to hide them in case of entering a PIN Back to Input Devices
- 7. Advantages Disadvantages It is faster to select an option using It is easy to damage them. a mouse as opposed to a keyboard. They increase the speed of It may be difficult for a person with navigation disabilities. They take up less space compared They take up more time if you were to keyboards. to enter long passages of data. Their purpose is to make choices Back to Input from a menu; clicking. Devices
- 8. Advantages Disadvantages Like a mouse, it allows you May be found difficult for to quickly chose an option. people to use. Again like a mouse, it Difficult to control as they allows quick navigation. are sensitive. Hand no wire to them, built Again like a mouse, into laptops. entering data with a lot of words can be difficult and time consuming. Back to Input Devices
- 9. Advantages Disadvantages Don’t require the same When a button is not present amount of control as a mouse. to do a specific action is not present, a problem arises. Easier for people with Slower when selecting disabilities options. Accuracy of where the pointer is on the screen can be increased. Fixed into position Back to Input Devices
- 10. Advantages Disadvantages Video date can easily be The video files occupy a edited. lot of space. The output can be A powerful computer customized as to what and graphics card is format you want it. necessary in order to edit video files. Back to Input Devices
- 11. Advantages Disadvantages Can be various distances from the People suffering from RSI will not device while still being able to find it easy to use. operate it. Beneficial to people who are unable Any obstruction in the pathway of to walk with ease. the infrared signal from the remote to the receiver could result in no response from the device. Back to Input Devices
- 12. Advantages Disadvantages It is faster to choose an Like a mouse and tracker option using a joy stick. ball, it is difficult to use when it comes to typing long passages. Are able to control objects Difficulty may arise when in 3D. trying to control the pointer. Back to Input Devices
- 13. Advantages Disadvantages Faster entry of option Screen is flat so continual use may result in RSI. Much more easier to select your option Much user friendly for people with disabilities Less likely to select an incorrect option. Back to Input Devices
- 14. Advantages Disadvantages Faster entry of data Damaged strip means that data entry needs to be done manually, reducing speed. Data entry is accurate Loss of card could cause problems such as no entry to restricted areas. It is more secure Can be used in security Back to Input systems Devices
- 15. Advantages Disadvantages Can be immediately updated If the card falls in the hands of a hacker, they can access all your details and can use it for identity theft. Are less damaged than magnetic strip readers due to regular use. The data that is entered is more secure than a magnetic strip Security reasons: no entry without card. Back to Input Devices
- 16. Advantages Disadvantages It is very secure because it will If PIN is forgotten the card is not work without the PIN almost useless; the transaction gets cancelled. Time effective : using cash or Great care must b taken when cheques would require a longer entering the PIN. time. Chips are more indestructible than magnetic strips. Back to Input Devices
- 17. Click for: Back to Input Devices
- 18. Advantages Disadvantages Images can be stored and Limited Accuracy then later be edited. Using OCR saves time rather than typing up the whole document again Easier to scan a bar code rather than type it up. Back to Input Devices
- 19. Advantages Disadvantages Take a better quality picture Much more costly then traditional cameras Easier and quicker to get them onto Need to change the batteries more the computer. often. Quicker than having the film developed And the amount of photo storage is much greater Back to Input Devices
- 20. Advantages Disadvantages Sound can be altered whilst Voice recognition is not as recording it. reliable as inputting text via a keyboard. It is much easier and much faster to input text as speech. Back to Input Devices
- 21. Click for: Types of Sensors How does a Sensor Work? Advantages and Disadvantages Back to Input Devices
- 22. • Used in automatic washing machines, automatic cookers, Temperatu central heating and greenhouses. re sensors • Used in burglar alarms, automatic washing machines, and can Pressure be used as a part of a robotic arm. sensors • Used in computer-controlled greenhouses, burglar alarm Light systems, automatic washing machines and street lights. sensors Sound • Used in microphones and burglar alarm systems. Sensors Humidity • Used in computer-controlled greenhouses Sensors Back to Input Devices
- 23. Back to Input Devices
- 24. Advantages Disadvantages Readings that are taken by sensors are If there is a power failure, the sensor much more accurate than human cannot work; therefore it is unable to take readings. any readings. The readings are taken at constant intervals, allowing the microprocessor to take immediate action. Sensors are able to do all the calculations or automatic processes while humans perform other tasks. Back to Input Devices
- 25. Advantages Disadvantages Files that are produced can be It will not have the original touch manipulated. of the music being played live. “The music produced can sound manufactured rather than spontaneous. Back to Input Errors can be omitted Devices
- 26. Advantages Disadvantages You can alter the drawing When choosing from a whilst making it. menu, it could be difficult. More accurate than using a More expensive than a mouse mouse Back to Input Devices
- 27. Advantages Disadvantages Security is better than that of The amount of characters that OCR’s can be used is limited. Accuracy is better than that of Expensive OCR. Cheques can be read even someone has written over them. Back to Input Devices
- 28. Advantages Disadvantages Quick way of entering data Manual methods of marking are more accurate. More accurate than OCR’s Forms which can be processed by OMR’s need to planned with precision. The user can easily fill in the form that will be read by the computer. Back to Input Devices
- 29. Advantages Disadvantages It is easier and faster to Errors are common. enter data this way rather than typing up the whole thing. Handwriting may not always be recognised. Back to Input Devices
- 30. Advantages Disadvantages It increases the speed. You Expensive. can scan the numbers on the barcode rather than typing them up. It is also more accurate Back to Input Devices
- 31. Back to Input Devices
- 32. Advantages Disadvantages Better than barcode readers as More expensive compared to they still work when they are other methods. intercepted. Can be read from and also be There is a lack of privacy as it written to. can be used to detect the movement of people. More difficult to copy as opposed to a barcode. Robust Back to Input Devices
- 33. Can then be Take moving Input to a Files are incorporated pictures computer then stored into slideshows or web pages. Back to Input Devices
- 34. Advantages Disadvantages Can quickly be turned on Limited facilities Provide elders the opportunity to Not portable stay in contact with their friends and family. Software is also limited. Back to Input Devices
Editor's Notes
- #5: Ergonomic keyboards are now coming into common use due to the increase in number of people who use the computer. Their purpose is to prevent RSI whilst typing. This is aided by the shape of