Demystifying Computers

How They Really Work

Osher Lifelong Learning Institute
University of Illinois, Urbana-Champaign

Scott Badman, Instructor


Session 1: Hardware and the Definition of "Data"
September 16, 2013


This evening we discuss the Metric prefixes, then we will disassemble a computer and discuss the components inside, followed by the definition of "Data".


Core Concepts


The isolation of complexity

Maintaining compatability whenever possible, especially backwards compatibility

The importance of standards and protocols to allow different components to work together


The six to ten components in a typical computer

Computer repair is mostly just component replacement.

Parallel data transmission versus serial data transmission

The definition of "data"



Topics


Metric Prefixes

Hardware

The Definition of "Data"


Resources


Metric Prefix Chart (Power Point)

Metric Prefix Chart (pdf file)

Metric Prefix Chart (jpeg picture)


Disassembly of Computer in Class (Power Point)

Disassembly of Computer in Class (pdf file) (Much faster download over the Internet)


Definition of Data (Power Point)

Definition of Data (pdf file)


Everyconnector and socket you will ever see!) (medium resolution .png picture file)

Everyconnector and socket you will ever see!) (high resolution .png picture file)