Mapa mental
Input devices
Contenido del mapa
Input devices
Keyboard
- Uses
- Entering data into applications
- Entering commands into the computer
- Advantages
- Fast entry of data
- Very easy to use
- Information immediatly appears on the screen
- Disadvantages
- Can be painful to use for people with wrist problems
- Takes up a lot of desk space
- Slow compared to automatic methods e.g. barcode scanner
- Uses
Numeric Keypad
- Uses
- ATMs
- Telephones
- Chip and Pin devices
- Advantages
- Faster than normal keyboards for entering numbers
- Small
- Disadvantages
- Hard to use for people with large hands because they are small
- Difficult (but not impossible) to enter text information
- Uses
Pointing Devices
- Mouse
- Types
- Optical Mouse
- Ball Mouse
- Uses
- Advantages
- Very easy to use
- Small
- Faster to select icons and options than keyboard
- Disadvantages
- Needs flat surface
- Ball mice can pick up dirt which affects accuracy
- Types
- Touchpad
- Uses
- Advantages
- Built into laptops so don't need flat surface
- Won't get clogged with dirt
- Doesn't run out of room unlike mouse
- Disadvantages
- More difficult to control than mouse such as drag/drop
- Hard to use for people with with wrist problems
- Trackerball
- Uses
- Opening, closing, maximising and minimising programs and files
- Moving, grouping and deleting of files
- Controlling a pointer on screen to select icons or move around the page
- Editing images in term of size and position on screen
- Advantages
- People with wrist problems can still use it
- More accurate than mice or touchpad
- Doesn't need a flat surface
- No limit on ball travel (with a mouse you can run out of room)
- Other Uses
- Arcade gaming machines
- Disadvantages
- More expensive than mice
- More difficult to learn to use than mice
- Uses
- Mouse
Remote Control
- Uses
- Home entertainment systems
- Hi-fi systems
- DVD/Blu-ray Players
- Satellite systems
- Some overhead projectors
- Industry
- Cranes with heavy loads
- Robot arms in hazardous chemical plants
- Activating explosives in demolition
- Home entertainment systems
- Advantages
- Devices can be operated without people having to go to them
- Devices can be activated in dangerous situations
- Disadvantages
- Can be difficult to use for people with limited hand movement
- Infra-red signal can be blocked
- Uses
Joystick
- Uses
- Video game controller
- Control machines in industry
- Simulators
- Advantages
- Easier to control a video game than with keyboard
- Easy to use
- Can be used by disabled people
- Disadvantages
- Not as easy to control than mouse
- Hand/wrist issues can cause problems
- Difficult (but not impossible) to enter text information
- Uses
Touchscreen
- Uses
- Mobile phones
- Public information boards at airports or tourist information offices
- Interactive whiteboards
- Some multiple choice tests(e.g. driving tests)
- Advantages
- Fast and easy to use
- No training needed
- Disadvantages
- Limited number of options on screen
- Expensive compared to other input devices
- Can become dirty and full of germs by touching
- Uses
Scanner
- Uses
- Scanning hard copy documents into computer
- Preserving old photos or important documents
- Copying documents
- Advantages
- Very fast and easy to use
- Damaged photos can be repaired in software
- Disadvantages
- Can reduce quality
- Takes up a lot of diskspace
- Uses
Graphics Tablet
- Uses
- Allows designers to produce digital images.
- Advantages
- Much easier to draw with than with mouse so much more accurate
- Allows fine detail
- Useful in languages where drawings or symbols are used instead of text. e.g. Japanese
- Disadvantages
- Very expensive compared to mouse.
- Not useful for some input needs
- Uses
Light Pen
- Uses
- Selecting objects on a CRT screen
- Drawing on a CRT screeen
- Advantages
- More accurate than touchscreen as end of pen is thinner than finger
- Very small
- Disadvantages
- Not as accurate as graphics tablet.
- Can only be used with CRT screens
- Can be uncomfortable to hold pen up to screen for a long time
- Uses
Microphone
- Uses
- Inputting sound for many applications(e.g. videoconferencing and video games)
- Voice recognition software
- Hands free mobile phones
- Advantages
- Faster to speak than type
- Word processors can be used by people who can't use their hands
- Very cheap
- Driving is safer because people can use their phones without their hands
- Disadvantages
- Takes up a lot of storage space
- Homophones can be mixed up(e.g. 'see' and 'sea')
- Background noise can interfere
- Uses
Digital Camera
- Advantages
- No film to develop
- Unwanted images can be easily deleted
- Easy to make copy of images
- No need to print as images can be viewed on computer screen
- Memory cards can store a lot
- Easy to transfer using bluetooth, emails and mobile phones
- Images can be edited easily
- Uses
- Capturing digital images(taking photos)
- Taking photos for editing
- Short video clips
- Disadvantages
- Needs computer skills
- Not all will produce as high quality images as traditional cameras
- Some artistry of photography is lost
- Advantages
Web Camera
- Uses
- Video conferencing
- Capture video and image content
- Parents to keep an eye on their children
- Cheap alternative to security cameras
- Viewing traffic conditions on roads
- Advantages
- Allows long-distance face to face conversations - Cheap video conferences
- Allows parents to make sure their children are safe
- Can be left running constantly
- Disadvantages
- Image/video quality can be poor
- Must be permenantly fixed to computer
- Usually fixed so hard to move
- Uses
Información
- Descripción
- UK CAT Computer Studies Mapa Mental sobre Input devices, creado por Jonny Bailey el 06/12/2017.
- Creado por
- Jonny Bailey
- Visitas
- 8
- Valoración