1.1 Computer hardware

Question 1

Name 5 input devices

Answer 1

Mouse
Keyboard
Scanner
Controller
Microphone
Webcam
Chip reader
Barcode scanner
Graphics tablet
Sensors
Touch screen
Remote control
Biometric scanner
Concept Keyboard

Question 2

Name 5 output devices

Answer 2

Monitor
Printer
Plotter
Speakers
Projector
Alarm
Light
Headphones
Touch screen
Braille terminal

Question 3

Advantages of Biometric devices

Answer 3

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

Question 4

Disadvantages of Biometric Devices

Answer 4

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

Question 5

State 3 human features that may be recorded by a Biometric device

Answer 5

Finger print
Iris (eye)
Face
Voice

Question 6

Describe how a Biometric device works

Answer 6

It uses human characteristics as part of its security mechanism