This document discusses different types of input devices including biometric devices, game controllers, and adaptive technology. It describes how biometric devices like fingerprint scanners, retinal scanners, and facial recognition are used for identification and security. Game controllers are used to interact with video games and have applications in weaponry control. Adaptive technology allows disabled individuals to use computers through devices like Braille keyboards, screen readers, and eye tracking systems.

1. Input Devices
With Anna Mroz, Lisa Parker, Marissa
Richards, and Valerie Riley

2. What is an input device?
• An input device is used to insert data into a
computer or other computational device.
• These devices come in all shapes and sizes- from a
keyboard inputting textual data, a webcam that
sends a picture to anyone around the world, or a
microphone that sends audio data.
• We use these devices everyday to operate our
computer, to purchase items at a store, to identify
who we are in our passports, or even just to play a
video game!

3. Game Controllers
• Game controllers are used
as an interaction device for
video games.
• Game controllers vary
between the different
consoles that use them.
• Some could be a simple
joystick, and some could
be a guitar or microphone!

4. Real Life Applications
• Did you know?
o These controllers are not only used for video games, but
also have a place in weaponry controls such as a
tactical robot used to diffuse bombs with a joy stick to
control it’s movement.
o Arms-maker Raytheon just created the
application of the Universal Control
System used in video games like Halo
and incorporated it in robotic aircrafts
to improve precision.

5. Biometric Devices
• A biometric device identifies persons seeking
access to a computing system by determining their
physical characteristics through fingerprints, voice
recognition, retina patterns, pictures, weight, or
other means.
• The two primary uses for biometric devices are
identification and verification.
• These devices provide security, accuracy, and the
capacity to store large amounts of captured data.

6. The Different Types of
Biometric Devices
• Fingerprint Scanner • Retinal/Iris Scanner
o Acquires an image of a o Both are forms of biometric data
fingerprint either by optical
capture based on scanning
scanning or capacitance
sensing. different parts of the eye.
• Facial Scanner
o Facial recognition works by
extracting key characteristics such
as relative position of eyes, nose,
mouth, and ears from
photographs of an individual’s
head or face.
• Hand Geometry
o Scanners generate templates
based on various features of an
individual’s hand, including
finger length.

7. Biometric Devices Continued
• Voiceprint • Keystroke Pattern
o Voiceprint recognition o Detects patterns of typing on a
compares the vocal patterns of keyboard by an individual
an individual with previously
against patterns previously
enrolled samples.
enrolled.
• Deep Tissue Illumination
o Involves illumination of human
tissue by specific lighting
conditions and the detection of
deep tissue patterns based on
light reflection.
• DNA Fingerprint
o This method works by taking a
tissue sample from an
individual and then
sequencing and comparing
short segments of DNA.

8. Adaptive Technology
• Also known as “Assistive Technology” for people
with a disability or handicap.
• Web-based technology, peripheral devices,
robotics and speech recognition have allowed
disabled people to become independent.
• There are common applications of speech
recognition, and other software that is used by
most handicapped people.

9. The Different Types of
Adaptive Technology
• Braille Keyboards • EyeTech TM4 USB
o Braille keyboards allow fast o Eye tracking device with a
input and Braille printers hands free mouse
supply printed braille o Tracks eye movement and
versions of the screen uses that movement to move
content the cursor on the screen
• Screen Reader
o Software that converts • Voice Recognition
what is displayed on the o Software used to recognize
screen into audio content voice commands and
control the computer

10. • Sip-and-Puff Controls • CyberLink with Brainfingers
o This technology allows a o Communication link between
user to operate a computer humans and computers.
by exhaling or inhaling.
o Uses a headband to detect
o A user with limited use of brain signals and transmits them
hands could blow into a to the computer.
straw to operate the
device. o Controls the mouse cursor and is
formatted to send mouse button
commands and keyboard
commands. Allows the wearer to
maneuver all aspects of the
computer.

11. BrainPort V100
• BrainPort V100 is a non-surgical assistive device.
• It translates digital information from a video camera
into gentle electrical stimulation.
• Users feel bubble-like patterns on their tongue
• Users learn to interpret this as shape, size location
and motion of objects in their environment.

12. • BrainPort collects visual data
using a tiny, glasses-mounted BrainPort In Use
video camera, translating
images into electrical patterns
on the surface of the tongue.
• Neuroscientist Dr. Paul Bach-y-
Rita pioneered the concept of
“sensory substitution” in the
late 1960’s.
• He famously declared “We
see with our brains, not with
our eyes.”

13. Works Cited
• Computers for the Handicapped | eHow.com
http://www.ehow.com/list_6302430_computers-handicapped.html#ixzz2LY5XGFBI
• Input Devices for Physically Challenged Computer Users | eHow.com
http://www.ehow.com/list_7277761_input-physically-challenged-computer-
users.html#ixzz2LY6OktJY
• www.disabled.com
• Visualizing Technology, Debra Geoghan, 2012 Pearson Education.
• http://www.wired.com/dangerroom/2008/07/wargames/
• http://www.wisegeek.com/what-are-biometric-devices.htm
• http://encyclopedia.jrank.org/articles/pages/6558/Types-of-Biometric-Devices.html