CC1 chapter 4 Flashcards
An input device used to enter characters at the location marked by the insertion point or cursor
Keyboards
Mobile devices often use:
- Slide-out keyboard
- Pen or touch input (on-screen keyboard)
- Keyboard dock
Pointing devices are used to:
- Select and manipulate objects
- Input data
- Issue commands to the computer
Common types of pointing devices:
- Mouse
- Pen/stylus
- Devices that use touch input
Common pointing device that the user slides along a flat surface to move a pointer around the screen and clicks its buttons to make selections
Mouse
Support pointing, clicking, and scrolling
traditional mice
Support swiping, tapping, and other navigational movements
touch mice
Users control devices with 3D gestures, voice commands, and facial expressions
Perceptual Computing
Pen-like device used to draw or write electronically on the screen
Stylus
Pen-based systems that capture handwritten input as it is being written
Digital Writing Systems
Pen tablets or digitizing devices
Graphics Tablets
Found at check out counters to record customer signatures
Signature Capture Devices
Display devices that are touched with the finger to select commands or otherwise provide input to the computer
Touch Screens
Can recognize input from more than one finger at a time
Multi-touch
Large screen computer either built into a table or designed to be used on a table
Table PC
Other pointing devices
- Gaming devices
- Trackballs
- Control buttons and
- wheels
- Touch pads
Computer generated images are overlaid on top of real- time images
Augmented Reality
Already exists in physical form (photographs, checks, or product label)
Source documents
Captures data directly from a source document
Source data automation
Input devices that read printed text and graphics and transfers them to a computer in digital form
Scanners (Optical Scanners)
Types of scanners
- Flatbed
- Portable
- 3D
- Receipt and business card scanners
Quality of scanned images indicated by optical resolution
Scanning Quality and Resolution
Input devices that read barcodes
Barcode Readers
Machine-readable codes that represent data as a set of bars
Barcodes
Common Types
- Universal Product Code (UPC)
- ISBN
- DataBar
- QR Codes
Technology used to store and
transmit data located in RFID tags
Radio Frequency Identification (RFID) Readers
Applications
- Tracking inventory and assets
- Electronic toll collection
- Tracking patients in hospitals
- Ticketing applications
- Speeding up ID process of travelers at border crossings
Handheld, portal, and stationary
Types of RFID Readers