what is electrical & computer engineering? by prof. bitar
TRANSCRIPT
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What is Electrical & Computer Engineering?
byProf. Bitar
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6 Blind Men Describing an Elephant
http://33.media.tumblr.com/tumblr_m59kgnTbUJ1qfvq9bo2_r1_1280.jpg
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So lets try to describe it....
What do you think of when you think of ECE?
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How many things did you use today that require electricity to operate?
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My Broad Definition of ECE
The art of utilizing electricity and
electromagnetic phenomena to do
useful things...
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In the past, it was about...
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Electric POWER
• Lighting• Motors
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And Communication...1837
1900
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Early Radio Technology (circa 1920)
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And... Early COMPUTINGENIAC 1946
17,468 Vacuum Tubes 7,200 Crystal Diodes 1,500 Relays 70,000 Resistors 10,000 Capacitors5,000,000 Hand Soldered Joints 30 Tons 1,800 sq ft 150 kilowatts
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1947 Revolution! The Transistor
John Bardeen
Walter Brattain
William Shockley
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1958 Jack Kilby Invents the Integrated Circuit Texas Instruments
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What is so significant about the Transistor and
Integrated Circuits?
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Modern Integrated Circuit
Millions (billions) of Transistors on a single die.
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So, let’s pick a modern electronic device and
dissect it...
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ONE Modern Example...A Cellphone
Q: How many technologi
es are represente
d here?http://r3.whistleout.com.au/public/images/blog/2012/07/samsung_galaxy_s3_review_10.jpg
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How many different technologies are utilized
in a cell phone?
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Here’s a Partial List Related to ECE Display Technology
LCD Displays Touch Screens LED Backlighting
Battery & Charging Technologies Lithium Ion Efficient AC-DC Power Supplies
Computer Technologies Microprocessor / Microcontroller Memory (Cache / SIM Card) USB Interface
Audio Technology Class-D Audio Amplifiers A-to-D and D-to-A Converters Filter Technology Microphone Technology
Camera Technology CCD Imaging
Sensor Technologies Touch Screen Switches Biosensors
Wireless Technologies RF Antennas / RF Transceivers WiFi / Wireless Routers Blue Tooth (local wireless)
Cellular Network Technology CDMA vs. GSM Cell Towers Base Stations Packet Switching Networks
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And each of these areas represents a potentially
different career path within ECE...
Why?
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And that’s just ONE product – a Cell Phone...
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So how do you choose?
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One Approach...
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“Pick a problem in the world and dedicate
yourself to solving it... The rest will work itself
out on it’s own.”
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Problem
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One of My Heros...
“I saw a person in a wheelchair
unable to cross a curbing and I
was disgusted at the injustice of
it.”
~ Dean Kamen ~
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First Robotics
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Segway / “Luke” Arm
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Major Areas of Study at WPI within ECE
Analog Microelectronics Biomedical Engineering Communications & Signal
Analysis Computer Engineering Power Systems Engineering RF Circuits & Microwaves
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Major ECE Topics/Industries(provided by IEEE)
Aerospace Biomedical Computing Energy Consumer Elec
tronics
Green Tech Robotics Semiconductor
s Telecom Transportation