1.1 Computer Hardware Flashcards
Name 5 input devices
Mouse
Keyboard
Scanner
Controller
Microphone
Webcam
Chip reader
Barcode scanner
Graphics tablet
Sensors
Touch screen
Remote control
Biometric scanner
Concept Keyboard
Name 5 output devices
Monitor
Printer
Plotter
Speakers
Projector
Alarm
Light
Headphones
Touch screen
Braille terminal
Advantages of Biometric devices
Security is improved - can’t share to others such as passwords
If password is exposed the system cant be accessed without the biometric
They verify who users claim to be
Are quicker and easier
Disadvantages of Biometric Devices
Can be expensive to install
Long to set up
Unreliable - can be affected by the environment (oily fingers)
Not disabled friendly
Privacy concerns - user may not want personal characteristics stored on a system
State 3 human features that may be recorded by a Biometric device
Finger print
Iris (eye)
Face
Voice
Describe how a Biometric device works
It uses human characteristics as part of its security mechanism