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The Wireless Revolution
Dr. Tal Lavianhttp://cs.berkeley.edu/~tlavian
[email protected] Berkeley Engineering, CET
1
What is a technological revolution?
Historical period when dramatic socioeconomic change results from a technological evolution.
What is a technological revolution?
Historical period when dramatic socioeconomic change results from a technological evolution. The Printing Press
Gutenberg, c. 1650
Started the Information Revolution
What is a technological revolution?
Historical period when dramatic socioeconomic change results from a technological evolution. The Spinning Jenny
Patented 1770 by James Hargreaves
Started the Industrial Revolution
The Computer: a Modern Technological Revolution?
Is it too early to declare this inventionrevolutionary? The computer
Z1—Boolean logic; 1938 Colossus—WWII decryption
Effects of Computing
The Apollo astronauts carried slide rules to spaceThe Apollo computer had only 72KB of ROM
Can you name some example of how faster, massive computation abilities have affected the progress of science and technology since the 1950’s?
The Internet: a Modern Technological Revolution?
Is it too early to declare this inventionrevolutionary? The internet
ARPANET—1969 TCP/IP—1974
Effects of Internet
As of 2010, only 26% of the world actually uses the internet. And yet, it affects:
Business practices Media Communication Socialization Privacy Information availability
Can you name another medium that makes instant information, instant long-distance communication, and instant massive audience available to “the common man”?
Wireless Revolution?
Are smartphones and wireless technologies a technological revolution?
How are Smartphones different fromcomputers, internet?
The Wireless Revolution
A synergistic convergence of revolutions in: Bandwidth
Cloud computing Apps Social networking
Size Battery life Computing efficiency Screen
Result: MOBILITYWhy is mobility significant?
Bandwidth
Current advancement: 10s of megabits per second
Almost freeWhenever, wherever
Significance: Allows for off-phone computation and storage, via
apps and cloud computing Social networking (aka, more business opportunities)
Cloud Computing
Cloud computing: delivers service to mobile devices or PCs Computation Softward applications Data access Data management Storage resources
Service vs ProductThus, mobile devices do not
require high computing power and memory
Applications: E-Commerce, learning and healthcare
Source: http://en.wikipedia.org/wiki/Cloud_computinghttp://blogs.marketwatch.com/cody/2011/04/30/best-stocks-for-the-cloud-revolution/
Apps
SiriGPS and navigationAdobe PhotoshopStatistical analysisYou Tube
User friendly, intuitive connection to the cloud
Social Networking
Connecting with family, friends—love and relationships
Sharing content (photos, videos, web links, locations etc)—self expression
User profile and likes—self definition
Recommending (Yelp, amazon.com)—community service
Commenting on and creating blogs, wikis, chats—expertise, community leadership
Source: http://therecoveringpolitician.com/contributors/jyb3/john-ys-musings-from-the-middle-maslows-hierarchy-of-needs-and-wants
Social Networking
Source: http://www.comscoredatamine.com/2011/05/mobile-social-media-usage-up-80-percent-in-the-uk/
Connecting with family, friends—love and relationships
Sharing content (photos, videos, web links, locations etc)—self expression
User profile and likes—self definition
Recommending (Yelp, amazon.com)—community service
Commenting on and creating blogs, wikis, chats—expertise, community leadership
Social Networking
Powerful emotional connection to social
networking==
$$$$$
Connecting with family, friends—love and relationships
Sharing content (photos, videos, web links, locations etc)—self expression
User profile and likes—self definition
Recommending (Yelp, amazon.com)—community service
Commenting on and creating blogs, wikis, chats—expertise, community leadership
Social Networking
AdsPay-per-clickFree advertizing:
Likes Shares Links
“donate”, “vote” buttonsSearch engine
optimizationAmazon, Ebay, EtsyPolitical donationsOnline petitions
Powerful emotional connection to social
networking==
$$$$$
On phone, only possible due to high wireless bandwidth
The Wireless Revolution
A synergistic convergence of revolutions in: Bandwidth
Cloud computing Apps Social networking
Size Battery life Computing efficiency Screen
Result: MOBILITY
Size
Size is vital to mobility and usefulness:
Such size would not be possible without advances in touchscreen, computing, and battery technologies.
Phone 3 – 7 oz
Surface/Tablet /Pad 7oz - 1.5 lbs
Walkman/Player/Pod 0.5 - 7 oz
Screens: What was wrong with the old ones?
Remember dumb phones? 1 or 2 line screen
Sanyo phone with internet access: TFT screen, only navigable with buttons.
The old Palm Pilot screen:Resistive touch-screen No multi-touch No fingers Low quality images
The Modern HD Capacitive Touchscreen
High resolution arguably the maximum perceivable
amount of detail at a 1 foot distance (960×640, 78 micrometers per pixel)
Supports multi-touch For humans, the hand is the
most intuitive and satisfying tool
Battery
Lithium ion polymer battery—flexible and compact Li has high energy to weight ratio Rechargeable Electrolyte: polymer instead of liquid
higher energy density than normal lithium ion batteries Electrodes and separators are laminated to each other
thus, no need for rigid metal casing to press them together no metal casing = lighter battery
can be produced in a variety of shapes ideal for thin phones
Future: nanowire batteries? printable zinc batteries?
Computing
Apollo: 72 KB of ROM, weighed 70 lbsSmartphone: 512 MB of DRAM and 32 GB
“storage”, weighs 4 oz That’s over 2 million–fold increase in efficiency
System on a chip
Source: http://www.ubergizmo.com/2011/04/system-on-a-chip/
There’s even room for:
Camera and front cameraThree microphonesGyroscopeAccelerometerMagnetometer (aka compass)Proximity sensor Surround sound