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CSCA0101 Computing Basics, , CSCA0101, COMPUTING BASICS, , Chapter 3, Input Devices, , 1

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CSCA0101 Computing Basics, , Input Devices, Topics:, •, •, •, •, •, •, , Input Devices, Examples of Input Device, Keyboard, Pointing Devices, Graphic and Video Input Devices, Audio Input Devices, , 2

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CSCA0101 Computing Basics, , Input Devices, Input Devices, •, , •, •, , Any peripheral (piece of computer hardware, equipment) used to provide data and control signals, to a computer., Allows the user to put data into the computer., Without any input devices, a computer would only be, a display device and not allow users to interact with, it., , 3

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CSCA0101 Computing Basics, , Input Devices, Examples of Input Device, •, •, •, •, •, •, , Keyboard, Mouse, Touchscreen, Graphic tablet, Microphone, Scanner, , 4

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CSCA0101 Computing Basics, , Input Devices, Keyboard, •, •, •, , •, •, , One of the primary input devices used with a, computer., The keyboard looks very similar to the keyboards of, electric typewriters, with some additional keys., Keyboards allow a computer user to input letters,, numbers, and other symbols into a computer, Uses an arrangement of buttons or keys., Requires pressing and holding several keys, simultaneously or in sequence., , 5

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CSCA0101 Computing Basics, , Input Devices, Keyboard, , 6

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CSCA0101 Computing Basics, , Input Devices, Types of Keyboard, Standard, •, , Desktop computer keyboards, such as the 101-key, US traditional keyboards or the 104-key Windows, keyboards, include alphabetic characters,, punctuation symbols, numbers and a variety of, function keys., , 7

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CSCA0101 Computing Basics, , Input Devices, Types of Keyboard, •, •, •, •, •, •, , Standard, Laptop, Gaming and Multimedia, Thumb-sized, Virtual, Foldable, , 8

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CSCA0101 Computing Basics, , Input Devices, Types of Keyboard, Laptop Keyboard, •, , •, , The laptop computer keyboard is, a small version of the typical, QWERTY keyboard., A typical laptop has the same, keyboard type as a normal, keyboard, except for the fact that, most laptop keyboards, condense the symbols into fewer, buttons to accommodate less, space., 9

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CSCA0101 Computing Basics, , Input Devices, Types of Keyboard, Gaming and Multimedia Keyboard, •, , The gaming keyboards are designed for the, convenience of the gamers and these types of, keyboards provide the required controls on the, keyboards like back lighting., , 10

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CSCA0101 Computing Basics, , Input Devices, Types of Keyboard, Thumb-sized keyboard, •, , •, , Smaller external, keyboards have been, introduced for devices, without a built-in, keyboard, such as PDAs,, and smartphones., Small keyboards are also, useful where there is a, limited workspace., , 11

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CSCA0101 Computing Basics, , Input Devices, Types of Keyboard, Virtual Keyboard, •, , The virtual keyboards are not actually physical, keyboards, but they are simulated using a software., , 12

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CSCA0101 Computing Basics, , Input Devices, Types of Keyboard, Foldable Keyboard, •, , •, , Foldable keyboards are, extremely good for, travelling., Simply roll them up and, then unroll them when, you need them again., , 13

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CSCA0101 Computing Basics, , Input Devices, Keyboard Layouts, QWERTY, •, , Common layout, , 15

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CSCA0101 Computing Basics, , Input Devices, Keyboard Layouts, QWERTZ, •, , Used in Germany, Hungary and Czech Republic, , 16

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CSCA0101 Computing Basics, , Input Devices, Keyboard Layouts, AZERTY, •, , It is used by most French speakers based in Europe, , 17

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CSCA0101 Computing Basics, , Input Devices, Keyboard Layouts, DVORAK, •, •, , Alternative for QWERTY, Dvorak layout uses less finger motion, increases, typing rate, and reduces errors compared to the, standard QWERTY, , 18

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CSCA0101 Computing Basics, , Input Devices, Key Types, , Key Type, , Example, , Alphanumeric, , A-Z, 0-9, , Punctuation, , .,!“?, , Modifiers, , Shift, Space Bar, Enter, Ctrl, Alt, , Navigation, , Arrows, Home, Page Up, , System Command, , PrtScn, Esc, F1, Start, , 19

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CSCA0101 Computing Basics, , Input Devices, Key Types, Function keys, • The Function keys or F1 through F12 keys are used, in programs as shortcut keys to performed frequently, performed tasks., • For example, the F1 key is the key to open the online, help for most programs., , 20

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CSCA0101 Computing Basics, , Input Devices, Key Types, Control Keys, • The Control keys are what give you additional control, of a document., , 21

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CSCA0101 Computing Basics, , Input Devices, Key Types, Keypad, • Although not available on all computer keyboards,, especially laptops; the keypad gives the user a quick, access to numbers and math functions such as plus,, divide, times, and subtract., , 22

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CSCA0101 Computing Basics, , Input Devices, Key Types, Arrow keys, • The arrow keys are four directional arrow keys that, allow the user to move their cursor and position on a, page., , 23

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CSCA0101 Computing Basics, , Input Devices, Keyboard Shortcut Keys, Shortcut Keys, , Description, , Alt + F, , File menu options in current program., , Alt + E, , Edit options in current program, , F1, , Universal Help in almost every Windows program., , Ctrl + A, Ctrl + X, Shift + Del, Ctrl + C, Ctrl + Ins, Ctrl + V, Shift + Ins, , Select all text., Cut selected item., Cut selected item., Copy selected item., Copy selected item, Paste, Paste, , Ctrl + P, , Print the current page or document., , Home, , Goes to beginning of current line., , Ctrl + Home, , Goes to beginning of document., , End, Ctrl + End, , Goes to end of current line., Goes to end of document., , Shift + Home, , Highlights from current position to beginning of line., , Shift + End, , Highlights from current position to end of line., , Ctrl + Left arrow, , Moves one word to the left at a time., , Ctrl + Right arrow, , Moves one word to the right at a time., , 24

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CSCA0101 Computing Basics, , Input Devices, Pointing Devices, •, , A pointing device is a hardware input device that, allows the user to move the mouse pointer to select, items on a display screen., • Types of pointing device:, – Based on rolling a ball, – Based on touching a surface, – Based on moving stick, , 25

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CSCA0101 Computing Basics, , Input Devices, Pointing Devices, Based on rolling a ball, •, , Example:, – Mouse, – Trackball, , 26

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CSCA0101 Computing Basics, , Input Devices, Pointing Devices, Mouse, •, , •, , A device that controls the, movement of the cursor or, pointer on a display screen., The mouse is important for, graphical user interfaces, because user can simply point to, options and objects and click a, mouse button., , 27

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CSCA0101 Computing Basics, , Input Devices, Pointing Devices, Type of Mouse, •, , •, , Mechanical: Has a rubber or, metal ball on its underside, that can roll in all directions., Optical: Uses a laser to, detect the mouse's, movement., , 28

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CSCA0101 Computing Basics, , Input Devices, Pointing Devices, Trackball, •, •, , •, , A trackball is a mouse lying on its, back., To move the pointer, you rotate, the ball with your thumb, your, fingers, or the palm of your hand, It does not require much space to, use it, , 29

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CSCA0101 Computing Basics, , Input Devices, Pointing Devices, Based on touching a surface, •, , Example:, – Touchpad, – Graphic tablet, – Touch screen, – Light pen, – Stylus, , 30

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CSCA0101 Computing Basics, , Input Devices, Pointing Devices, Touchpad, •, , •, , A small, touch-sensitive pad used, as a pointing device on some, portable computers., By moving a finger or other object, along the pad, you can move the, pointer on the display screen., , 31

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CSCA0101 Computing Basics, , Input Devices, Pointing Devices, Graphic Tablet, •, , A graphics tablet (or digitizer,, digitizing tablet, graphics pad,, drawing tablet) is a computer input, device that allows one to handdraw images and graphics, similar, to the way one draws images with, a pencil and paper., , 32

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CSCA0101 Computing Basics, , Input Devices, Pointing Devices, Touchscreen, •, , •, , A touchscreen is an electronic, visual display that can detect the, presence and location of a touch, within the display area., The term generally refers to, touching the display of the device, with a finger or hand., , 33

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CSCA0101 Computing Basics, , Input Devices, Pointing Devices, Light Pen, •, , •, , A light pen is a computer input, device in the form of a lightsensitive wand used in, conjunction with a computer's, CRT display., It allows the user to point to, displayed objects or draw on the, screen in a similar way to a, touchscreen but with greater, positional accuracy., 34

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CSCA0101 Computing Basics, , Input Devices, Pointing Devices, Stylus, •, , A stylus is a small pen-shaped instrument that is, used to input commands to a computer screen,, mobile device or graphics tablet., , 35

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CSCA0101 Computing Basics, , Input Devices, Pointing Devices, Based on moving stick, •, , Example:, – Joystick, – Gamepad, , 36

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CSCA0101 Computing Basics, , Input Devices, Pointing Devices, Joystick, •, , A joystick allows an individual to, move an object in a game such as, navigating a plane in a flight, simulator., , 37

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CSCA0101 Computing Basics, , Input Devices, Pointing Devices, Gamepad, •, , •, , A gamepad, game controller, joypad, or video, game controller is a peripheral device designed to, be connected to a computer or console gaming, system., It has multiple buttons and may have one or two, mini joysticks., , 38

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CSCA0101 Computing Basics, , Input Devices, Imaging and Video Input Devices, •, •, , Used to digitize images or video from the outside, world into the computer., Example:, – Digital camera, – Webcam, – Optical scanner, – 3D scanner, – Fingerprint scanner, – Barcode reader, , 39

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CSCA0101 Computing Basics, , Input Devices, Imaging and Video Input Devices, Digital Camera, •, , •, , A camera that stores the pictures or, video it takes in electronic format, instead of to film., Digital cameras have become the, camera solution for most users today, as the quality of the picture they take, has greatly improved and as the price, has decreased., , 40

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CSCA0101 Computing Basics, , Input Devices, Imaging and Video Input Devices, Webcam, •, , A webcam is a hardware camera, connected to a computer that allows, anyone connected to the Internet to, view either still pictures or motion, video of a user or other object., , 41

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CSCA0101 Computing Basics, , Input Devices, Imaging and Video Input Devices, Optical Scanner, •, , •, , An optical scanner is a hardware input device that, allows a user to take an image or text and convert it, into a digital file, allowing the computer to read or, display the scanned object., Two types of scanner:, – Flatbed, – Hand-held, , 42

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CSCA0101 Computing Basics, , Input Devices, Imaging and Video Input Devices, Image Scanner, , Flatbed Scanner, , Hand-held Scanner, , 43

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CSCA0101 Computing Basics, , Input Devices, Imaging and Video Input Devices, Image Scanner, Flatbed Scanner, Flatbed scanners look similar to, a, small photocopier with the, document, remaining flat and stationary, during the scanning, , Handheld Scanner, Hand-held scanners are used for, entering text and images that are, less than a page wide. Handheld scanners are, adequate for small pictures and, photos but are difficult for entire, pages., , 44

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CSCA0101 Computing Basics, , Input Devices, Imaging and Video Input Devices, 3D Scanner, •, , •, , A 3D scanner is a device that, analyzes a real-world object or, environment to collect data on its, shape and possibly its appearance, (i.e. color)., The collected data can then be used, to construct digital, three dimensional, models., , 45

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CSCA0101 Computing Basics, , Input Devices, Imaging and Video Input Devices, Fingerprint Scanner, •, , A fingerprint scanner or fingerprint reader is a, hardware device that verifies a user or enters, password information by scanning their finger., , 46

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CSCA0101 Computing Basics, , Input Devices, Imaging and Video Input Devices, Barcode Reader, •, , A barcode reader or scanner is a hardware device, capable of reading a barcode and printing out the, details of the product or logging that product into a, database., , 47

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CSCA0101 Computing Basics, , Input Devices, Audio Input Devices, •, , •, , Audio input devices allow a user to send audio, signals to a computer for processing, recording, or, carrying out commands., Example:, – Microphone, – MIDI keyboard, , 48

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CSCA0101 Computing Basics, , Input Devices, Audio Input Devices, Microphone, •, , A microphone is a hardware, peripheral that allows computer, users to input audio into their, computers., , 49

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CSCA0101 Computing Basics, , Input Devices, Audio Input Devices, MIDI Keyboard, •, , •, , A MIDI (Musical Instruments Digital Interface), keyboard is typically a piano-style user interface, keyboard device used for sending MIDI signals to, a computer., MIDI information is sent to a computer that, capable of reproducing an array of digital sounds, or samples that resemble traditional analog, musical instruments., , 50

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CSCA0101 Computing Basics, , Input Devices, Audio Input Devices, MIDI Keyboard, , 51