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CP102 Lecture Notes - Usb, Sans-Serif, Web 2.0

Computer Science
Course Code
Mark Petrick

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Chapter 1: How will you save the world?
Friday, January 11, 2013
2:50 PM
More than just a job
Technology is means for career advancement
Provides necessary skill set for survival in society
Tool that allows individual to make impact beyond their own life
Technology and the World Stage
Technology empowers us with tools to impact the world
Political and global issues
Social networking fueled social unrest (ex. Egypt, Kenya)
Human rights
Witness Project stops human right abuses ("See it. Film it. Change it."
The environment
Cell phones could report air and water quality
The digital divide
Great gap between levels of internet access in different regions of the world
Prevents use of all minds on planet to solve problems
Many projects address this problem of digital divide
Junkyard jumbotron
Using old cheap parts to make something more expensive
Technology and Our Society
Technology allows us to redefine fundamental parts of our social makeup
How we think
What we think:
Web 2.0 allows international collaboration
Civic-minded projects appear online
Autonomy (freedom to work without constant direction/control),
mastery (feeling of confidence and excitement from seeing own skills progress),
purpose (understanding that you are working for something larger than
How we think of each other:
Marketing relying on exploiting stereotypes
Rise of social media changed this
People form into groups based on interests
How we connect with others
Connecting through music (virtual choir)
Connecting in new ways (a childhood walk, Google street view, DYTHR project)
How we purchase/consume products
Marketing strategies count on many people having cell phones
QR (quick response) codes link to online info, crowdsourcing (checking other
people's verdict)
Idea of ownership is evolving, allows us to change relationship to objects
Collaborate consumption: joining together as group to use specific
product efficiently

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These areas of society are shifting rapidly because of technology
Technology and Your life
Understanding technology can lead to greater productivity
Boost productivity by becoming computer literate
Understanding capabilities and limitations of computers
Knowing how to use computers efficiently
Be a Savvy Computer User
Avoid hackers and viruses
Protect privacy, understand real risks
Use internet and web wisely, avoid online annoyance
Be able to maintain, upgrade, troubleshoot your computer
Prepare for Your Career
Computer careers are on the rise
Businesses use data mining to search huge amounts of data to find pattern
Data mining opens door to more detail
Allows retailer to respond to consumer buying patterns
the arts
Artists display/sell work using web galleries, some work exclusively with computers
Dance and music programs use computers to create new performances (tracks motions
of a dancer etc.)
Video game design (sales larger than movie industry's box office)
Large-scale games created by teams, rapid growth projected over next decade
Teachers must have working knowledge of computers to integrate technology
into classrooms
A research tool; allows teacher to expose students to places
Simulations and instructional software incredible learning tools
Visiting museums
Virtual tours, audio guides, podcasts, interviews with artists, multimedia tours,
connect with others
law enforcement, military,
Computers used to solve increasing number of crimes (search databases on net)
Computer forensics analyzes computer systems to gather potential legal evidence
Training law enforcement officers (FBI, TSA etc.)
Facial reconstruction systems
FastSCAN wand turns skull into digital image of face (tissue-rendering programs
that add layers of muscles, fat, skin to create faces that can be used to identify
Biology + technology, implantable chips repair nerve damage
Person ID chip (VeriMed) verifies identity
Helps keep Alzheimer's patients safe, chip emits signal that transmits its unique
serial number to radio scanner
Provide tamperproof security measures
Biomed Chip Implants

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Provide sight to blind
Microchip would attach to outside of eye and take over processing from
damaged photoreceptors
Transmits electrical images to brain
Science (simulating reality)
Weather forecasting, archeology
Psychology and Technology
Affective computer relates to emotion or trying to influence emotions
Emotional-social prosthesis (ESP) devices helps people with autism
Psychologists and computer scientists working to evolve systems with more human appearence
Chapter 2: Looking at Computers- Understanding the Parts
Tuesday, January 15, 2013
4:00 PM
Computer is a data processing device
Performs four major functions:
Input (gathers data, allows user to input data)
Process (manipulates, calculates, organizes data into info)
Output (displays data and info for user)
Storage (saves data and info for user use)
Data vs. Information
Data: representation of fact, figure, idea
Information: data that has been organized/presented in meaningful fashion
Bits and Bytes
Language of computers:
Bit- binary digit, 0 or 1
Byte- 8 bits
Each letter, number of character is unique combination of 0s and 1s
Computer uses combination of hardware and software to process data into info
Hardware is any part of computer you can physically touch
Software is set of computer programs (application & OS)
Portable (netbooks, laptops, tablets), desktop, mainframe (supports hundreds of users
simultaneously), supercomputer (performs complex calculations really fast), embedded (self-
contained computer devices performing dedicated functions)
Input Devices
Devices used to enter data/instructions into computer
Keyboards (QWERTY, Dvorak), mouse, microphone, scanner etc.
Optical- internal sensor/laser detects movement, moves point on screen
Wireless mouse- optical and trackball
New features: magnifier, customizable buttons, web search, file storage
Monitor Types
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