Electronics- Overview of Physical Computingdenethor.wlu.ca/pc320/lectures/overviewbeam.pdfOverview of Physical Computing Terry Sturtevant Wilfrid Laurier University September 8, 2017

PreparationLearning Objectives

Two WorldsGetting information between worlds

Comparing worldsReview

ElectronicsOverview of Physical Computing

Terry Sturtevant

Wilfrid Laurier University

September 8, 2017

Terry Sturtevant Electronics Overview of Physical Computing




Preparation

Do you have a smartphone or tablet?If so, in what ways can it get information from the user or theenvironment?In what ways can it provide information to the user or theenvironment?Do you have an electronic device that you wear?If so, in what ways does it interact with you?





Preparation

Do you have a smartphone or tablet?

If so, in what ways can it get information from the user or theenvironment?In what ways can it provide information to the user or theenvironment?Do you have an electronic device that you wear?If so, in what ways does it interact with you?





Preparation

Do you have a smartphone or tablet?If so, in what ways can it get information from the user or theenvironment?

In what ways can it provide information to the user or theenvironment?Do you have an electronic device that you wear?If so, in what ways does it interact with you?





Preparation

Do you have a smartphone or tablet?If so, in what ways can it get information from the user or theenvironment?In what ways can it provide information to the user or theenvironment?

Do you have an electronic device that you wear?If so, in what ways does it interact with you?





Preparation

Do you have a smartphone or tablet?If so, in what ways can it get information from the user or theenvironment?In what ways can it provide information to the user or theenvironment?Do you have an electronic device that you wear?

If so, in what ways does it interact with you?





Preparation

Do you have a smartphone or tablet?If so, in what ways can it get information from the user or theenvironment?In what ways can it provide information to the user or theenvironment?Do you have an electronic device that you wear?If so, in what ways does it interact with you?





Learning Objectives

By the end of this lesson, you should be able to:identify what sets physical computing apart from ordinarycomputingstate properties of analog and digital quantitiesdefine the terms sensor and actuator





Learning Objectives

By the end of this lesson, you should be able to:

identify what sets physical computing apart from ordinarycomputingstate properties of analog and digital quantitiesdefine the terms sensor and actuator





Learning Objectives

By the end of this lesson, you should be able to:identify what sets physical computing apart from ordinarycomputing

state properties of analog and digital quantitiesdefine the terms sensor and actuator





Learning Objectives

By the end of this lesson, you should be able to:identify what sets physical computing apart from ordinarycomputingstate properties of analog and digital quantities

define the terms sensor and actuator





Learning Objectives

By the end of this lesson, you should be able to:identify what sets physical computing apart from ordinarycomputingstate properties of analog and digital quantitiesdefine the terms sensor and actuator





Further examples

Two types of questions





Further examples


What is the third letterof the alphabet?What is the square rootof 16?kludgeWhat is the area of arectangle 4 inches by 3inches?

Should I wear a coattoday?Do I need to getgasoline in my car onmy way home?Which direction isnorth?





Further examples








Further examples








Further examples








Further examples








Further examples








Further examples

Physical computing

Physical computing involves interaction with the world outside thecomputer.





Further examples

Physical computing

Physical computing involves interaction with the world outside thecomputer.





Further examples

Further examples

Physical computing systems are all around us. Many we are noteven aware of.





Further examples

Further examples

Physical computing systems are all around us. Many we are noteven aware of.





Further examples





Further examples





Further examples





Further examples





Further examples





Getting information between worlds

Sensorsget information from the user or the environmentActuatorsprovide information to the user or produce action in theenvironment

Inside the computer, electrical signals represent all of the real worldquantities.






Sensors

get information from the user or the environmentActuatorsprovide information to the user or produce action in theenvironment







Sensorsget information from the user or the environment

Actuatorsprovide information to the user or produce action in theenvironment







Sensorsget information from the user or the environmentActuators

provide information to the user or produce action in theenvironment




















Comparing worlds

The world outside the computer is primarily analog.The world inside the computer is primarily digital.





Comparing worlds

The world outside the computer is primarily analog.

The world inside the computer is primarily digital.





Comparing worlds

The world outside the computer is primarily analog.The world inside the computer is primarily digital.





Analog versus digital worlds






Analogcontinuousmany differentquantities (sound, light,temperature, etc.)

Digitaldiscreteelectrical signals kludgekludge



































Digitaldiscretenumbers, representedby electrical signalskludgekludge





Review

What sets physical computing apart from ordinary computing?What is different about the analog and digital worlds?What is a sensor?What is an actuator?





Review

What sets physical computing apart from ordinary computing?

What is different about the analog and digital worlds?What is a sensor?What is an actuator?





Review

What sets physical computing apart from ordinary computing?What is different about the analog and digital worlds?

What is a sensor?What is an actuator?





Review

What sets physical computing apart from ordinary computing?What is different about the analog and digital worlds?What is a sensor?

What is an actuator?





Review






Review



Documents

Electronics- Overview of Physical Computingdenethor.wlu.ca/pc320/lectures/overviewbeam.pdfOverview of Physical Computing Terry Sturtevant Wilfrid Laurier University September 8, 2017