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