Exponential growth

PowerPoint presentation
Enrichment presentation


Skills: none
Concepts: linear growth, exponential growth, linear scale plot, logarithmic scale plot, “hockey stick,” Moore’s Law, hosting in the cloud

Selected slides from CIS 275, fall 2010

PowerPoint presentation

A slide or two taken from each presentation.

Technology progress

PowerPoint presentation

Skills: none
Concepts: technology improvement versus technology shifts, progress in processing, storage, and communication technology

Recording and encoding analog data

PowerPoint presentation

Skills: Set sample size and rate in Audacity
Concepts: analog versus digital data, analog to digital conversion, digital to analog conversion, sample rate, sample size, quality-file size trade off

Audio compression

PowerPoint presentation

Skills: audio compression
Concepts: the audio processing workflow, quality-file size trade off, capture-edit-compress, lossy versus lossless compression

The physical layer

PowerPoint presentation

Skills: none
Concepts: wired hardware characteristics, wireless hardware characteristics (frequency and power), modulation schemes

Prerequisite topic module
Prerequisite topic module

Wave animations

Spring wave	Waves are the result of a disturbance or variation that transfers energy progressively from one point to another.
String wave	Click slowly or rapidly (change the frequency) to see the effect on wavelength (the distance between successive peaks).
Particle wave	This is how sound is transmitted. Note that the disturbance propagates, but the particles stay in the same place.
Tsunami wave	Note that the wave attenuates as it loses energy. (Its amplitude (height) diminishes).
Do the wave	Again, the people stay in the same seats as the disturbance propagates.

 

© animations copyright Cisco Systems and Dan Russell