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Input and Output Devices, Keyboards and Keypads kbd, Advantage, Image…

- - - - advantages
        
        easier to control than trackpad
        
        can click faster
        
        Have better experience when playing games
      - disadvantages
        
        Breakable
        
        Can Be Affected by the wifi
        
        Might have broken parts inside
      - Use
        
        To be able to play some specific games
        
        Can click around comfortably
        
        for scrolling faster
    - - Advantage
        
        Usually symmetrical, can use both left and right hand without any adjustment
        
        used by disabled people who may not have freedom of movement
        
        stationary and does not need a surface to be moved on
        
        Good for people with strained wrists
      - Disadvantage
        
        greater chance of strain in a finger
        
        need to clean regularly (if not it doesn't move smoothly)
        
        More expensive than the regular mouse
      - Uses
        
        Used in many laptops and used to be built in the laptops in older version
        
        Similar to a modern mouse, just better for health
    - - disadvantages
        
        strain injury
        
        Hard to draw(drag)
        
        Moist, sweaty, or calloused fingers can disrupt the signals picked up by the sensors.
        
        Controlling the pointer is hard.
        
        Slower than a mouse.
      - advantages
        
        Common on laptop. Everyone can have access if they have a laptop
        
        Easy to use as you just need fingers
  - - - convinent to control devices wirelessly
      - easy user friendly and only a little training needed
      - usable for people with disabilities
    - - Sometimes doesnt work i hate it so much
      - It needs battery
      - could be confusing if you don't know how to read
    - - Input device for alot of stuff
        
        TV
        
        Fan
        
        AC
        
        Machine
  - - - disadvantage
        
        it's very hard to type and have less buttons than keyboard
        
        it require battery which can be inconvient if you run out of battery
        
        can be more expensive than mouse and keyboard combined
      - advantage
        
        give unique and better gaming experience for certain games
        
        easy and quick to learn how to use it
        
        Ideal for mutiplayer gaming, enabling friends and family to join easily
      - uses
        
        texting
        
        Sports game
        
        Fighting game
        
        adventure game
        
        used for games in general
    - - Use:
        
        Driving and racing stimulator games at arcades or online
        
        Usually comes with pedals and brake
      - Advantage
        
        Allow better control of online driving or flying stimulations rather than using mouse or joy sticks
        
        Provide similar feeling when drive a real car or a plane (normally army planes*
      - Disadvantage
        
        Only use for one purpose and can't use for anything else
        EG: Writing an essay
        
        Added gear --> higher manufacture budget
    - - Advantages
        
        Some people find joysticks more difficult to control than a traditional mouse.
        
        They give a better gaming experience for racing or flying styles of computer games
      - Disadvantages
        
        Joysticks are not particularly robust and can break easily if too much force is used on them.
        
        In the operation of the joystick, it is very difficult to control the on-screen cursor than a computer mouse.
      - A joystick or a flight stick, is an input device which has a stick that moves on a base and stores its angle or direction to the device it is controlling
  - - - uses
        
        to scan the document or books
        
        not expensive much
      - advantages
        
        small and easy to scan
        
        no risk of tearing or staining
        
        portable
        
        Copies can be made even on very uneven paper
      - disadvantages
        
        not good at coping a lot of documents
        
        it takes long time to scan
        
        sometimes, it is expensive
    - - Advantage
        
        Image quality: Flatbed scanners can produce high-quality, detailed images with accurate color reproduction
        
        Versatility: Flatbed scanners can handle many document sizes and types, including photos, books, and 3D objects
        
        High Resolution: Flatbed scanners have a high resolution, allowing for high-quality photo scanning.
      - Use
        
        A scanner that provides a flat, glass surface to hold a sheet of paper, book or other object for scanning
        
        Home use: Scanning photographs, documents, and artwork
        
        Business use: Document management, archiving, and digitisation.
      - Disadvantages
        
        slow down the high-volume scanning process
        
        occupy more desk space
        
        flatbed trailers do not offer protection from weather conditions
    - - uses
        
        the software(machine) recognize marks made on paper documents
        
        mainly, it's determines checkbox states and whether they are selected
      - advantages
        
        fast and accurate
        
        good at scanning a lots of documents that contain many checkboxes,
        
        low cost
      - disadvantages
        
        it is difficult to remember a lot of data of answers
        
        it has limit of terms of the types of data
  - - - Used to take photos with high quality. Most of the professional photographers use DSLR cameras.
      - Advantages
        
        Higher quality picture
        
        Natural blur
        
        Better zoom
        
        Ergonomic
        
        Better and cheaper lens selection
      - Disadvantage
        
        Less portable
        
        Size & weigth
        
        Can be expensive
        
        Complicated to use
        
        Need to learn to use
        
        Extra accessories needed
    - - advantages
        
        By connecting a webcam to your computer, you can participate in video calls, virtual meetings, and online conferences, providing a more personal and interactive communication experience.
      - disadvantages
        
        So, two main disadvantages are the limited length of the USB cable and the need to search for software with functions which you need. For example: How to build your private surveillance system from a USB camera.
      - A webcam is a digital camera that captures video and audio data and transmits it in real-time over the internet. It is commonly used for video conferencing, live streaming, online meetings, and recording videos.
    - - Use
        
        Live Demonstration
        
        Interactive Learning
        
        They can assist visually impaired students by magnifying text or images, making content more accessible.
  - - - Record
        
        Music Instruments
        
        Drum
        
        Violin
        
        Piano
        
        Speech
        
        Vocals
        
        Sound Effects
      - Input
        
        Noise Detector
        
        Games that activates something when you scream
        
        Voice Interface
    - - Captures another type of input: Sound waves
      - Helps humans to simply record their noises instead of coding it
      - Alot of software kinda needs it
        
        The Phone app where you call people
        
        DAW's
        
        Zalo, Discord, Whatsapp, blablabla
        
        That one game where you scream to jump
        
        SIRI
    - - Outside of input it doesnt really give much output
      - Really good ones costs quite alot
  - - - Heat (thermometer)
      - Light
      - Movement
      - Chemical - e.g smoke
    - - Often cheap
      - Connectivity - Internet of Things
      - Often small - can
        be part of mobile
        devices
    - - Limited uses
      - May not be suitable
        for all conditions
      - Use constant power
        (vampire currents) - not green
      - Need calibrating
  - - - intuitive and easy to use
      - Save space as input and output devices are the same
      - no need to buy keyboard or mouse => saves money
      - Cost effective for shops and restaurants as fewer staff are needed if customers can order and serve themselves
    - - Not suitable for inputting large amounts of data
      - Not very accurate for selecting very small areas
      - Makes the computer lag
    - - Sensitve to pressure from your finger or other object pressed onto the screen.
      - The point of contact is detected because two metallic layers touch at that certain point resulting in a change in voltage
    - - The screen is sensitive to static electricity on an exposed finger.
      - Detected by sensors placed at the four corners of the screen allowing it to detect the touch point
  - - - Drawing
      - Teaching Math
      - Another Drawing because its mostly used for it
      - Writing on Computer
      - Make a living from your art
      - Animations
    - - Familiar input method
        (drawing)
      - No moving parts
      - More accurate than other
        pointing devices
    - - Can be expensive
      - Often needs special software
      - Cannot be used in the
        same way as a mouse
  - - - can detect gas leaks or fire
  - - - Easy to Use: Simple to operate by swiping the card.
      - Cost-Effective: usually cheap compared to other card reader technologies.
      - Compatibility: Widely avlabile and compatible with many systems.
    - - Security: resistible to stealing and data theft.
      - Wear and Tear: Magnetic stripes can get worn outover time, leading to reading errors.
      - Limited Storage: Can store only a less of data compared to newer technologies like smart cards.
  - - - Efficiency: Can scan multiple items at once
      - Durability: Can handle exposure to sun and rain
      - RFID allows for greater security than barcodes
    - - Materials like metal and liquid can impact signal
      - Sometimes not as accurate or reliable as barcode scanners
      - Cost – RFID readers are more expensive
  - - - Very sercure:
        the card changes the code after every transaction
      - Quick way to transact money
      - Have both chip and magnetic stripe
        
        If you can't use the chip -> use magnetic stripe
    - - Not all countries use chip and pin cards
      - PINs can be physically seen if not careful
    - - More sercure that magnetic stripe
      - Magnetic stripe is easy to be damage
  - - - Retail
      - Tracking parts and products through the manufacturing process.
      - Scanning tickets or passes for entry.
    - - Barcodes can only store a small amount of data
      - Barcodes can be easily damaged or obscured, rendering them unreadable and causing delays.
      - Most barcode readers require a direct line of sight to scan effectively, which can be a limitation in certain environments.
    - - Quick Scanning
      - Minimized Human Error
      - Barcode readers are generally easy to operate, requiring minimal training for staff.
  - - - Fast
      - cheap
      - May avoid typing error
    - - Needs manual checking
      - Doesn't work perfectly
  - - - Stores data in analog form
        
        Website links
        
        Pop-ups
        
        Scams
        
        Install stuff
    - - Stores lots of data in a small square
      - Fast and efficient
      - Easy to produce
      - Versatile
    - - If printed on paper can easily get destroyed
      - Fraud
      - Needs a scanner app
  - - - audio call
        
        listen to music
        
        gaming
    - - privacy it allows you to listen to an audio source privately
        
        experience: it can provide better audio experience with features like noise cancellation
        :
        
        convinience: very portable and lightweight, easy to carry them around
      - disadvantage
        
        the prolonged exposure to loud volumes through headphone can damage hearing
        
        Can lead to social isolation as users may distant from their surroundings and interactions
        
        wearing headphones while doing things like walking, cycing
        can cause safety concerns as it reduces the awareness and pose safety risks
  - - - uses
        
        prints using a fixed number of pins
      - advantages
        
        Easily available
        
        Affordable
        
        easy to use
      - disadvantages
        
        old= not in common for now
        
        high maintenance cost
    - - Use
        
        Artists can use plotters to create reproductions of their work with accurate color and detail.
        
        Plotters are commonly used to print architectural drawings and blueprints, providing precise line work and detail.
        
        Researchers may use plotters to create high-quality visual representations of data, such as scientific graphs and charts.
      - Advantage
        
        Can print very accurately on very large sheets
        
        Can print on different materials such as wood or plastic
      - Disadvantage
        
        Can take up a lot of space
        
        Slow
  - - - Advantages
      - Clear Display: They show detailed images and text, making it easy to see everything.
      - Multiple Sizes: Available in various sizes, so you can choose one that fits your space.
    - - Eye Strain: Looking at screens for too long can hurt your eyes.
      - Fragility: Monitors can break easily if dropped or hit.
  - - - Allows you to display images, videos, or other content on a large screen or surface.
    - - Large screen display
      - portability
      - versatility
    - - Requires dark room
      - Noise
      - Limited lifespan
- - - - May be expensive, but cheaper for long run
        
        Cheap toner
      - Low cost per page
      - No smudge --> toner is a powder ink
      - Quieter than inkjet and dot matrix
      - faster than ink-jet or dot-matrix
      - Higher quality printouts than ink-jet or dot-matrix
    - - Toner is toxic
      - More expensive than Inkjet
      - Limitation on using paper sizes.
      - non-impact printers and can print one single printout at once.
    - - Use laser to draw the required outputs onto the drum
      - Toner sprayed onto the drum
        
        Stick on areas with electrical charge
      - Pressed against paper
        
        transfered then heated up so toner binds to the paper
  - - - accurate control and positioning
      - Continuous feedback
      - Lower operation costs
      - Customizable motion profile
      - Minimal maintenance
    - - Complex technologies
      - Higher initial cost
      - Heat generation
      - Complex programing
    - - A device that controls or moves some mechanisms
      - Respond to control signal from the computer and produce a mechanical reaction
      - Most controlled robots are actuators
  - - - use in home
      - use in small office
    - - high quality
      - cheap to buy
    - - expensive ink
      - use water-soluble ink, so if the ink is print out wet, the ink will run