Chapter 1 Why Computers Matter To You Becoming Computer Literate Why Should You Become Computer Literate 1 We are surrounded everywhere by computers 2 Being computer literate means being familiar enough with computers that you understand their capabilities and limitations and you know how to use them 3 Computer Literate employees are sought after in almost every vocation Becoming a Savvy Computer User and Consumer 1 Avoiding hackers and viruses 2 Protecting your privacy 3 Understanding the real risks Being able to separate the real privacy and security risks from things you don t have to worry about 4 Using the Internet and the web wisely People who are computer literate make the internet a powerful tool and know how to find the information they want effectively 5 Avoiding online annoyances Junk mail and spam 6 Being able to maintain upgrade and troubleshoot your computer Being computer literate means knowing which technologies are on the horizon and how to integrate them into your home setup when possible Political Issues Human Rights The Environment 1 Egypt had protests and social networking helped save them Anti government FB page made and become popular so government censored by shutting off internet social networking allowed this page to be seen and people helped Egypt 2 Kenya made SwiftRiver and Ushahidi as crisis mapping tools 1 Cameras used to show how bad a government or peoples is get them in trouble 1 Save environment through cameras Accessible Technology 1 The Digital Divide being solved by NEI High Low Tech 1 Hook low tech stuff up to be a jumbotron Technology Impacts Way We Think 1 Know Creative Surplus Autonomy Mastery Purpose 2 Marketers can see what we do on web special advertisments Connect Through Music and New Ways QR codes allows anyone to take a picture of a tag and find that product or online shopping Crowdsourcing shows what the public thinks and allows them to post about the product Marketing 1 2 3 Mobile coupons Access Vs Ownership 1 Use things real quick like bike or car and return it later b c of technology 2 Trading items with others online collaborative consumption Being Prepared For Your Career 1 Information Technology IT is a field of study focuses on managing and processing information and the automatic retrieval of information Includes computers telecommunications and software deployment Computers in Today s Careers 1 Retail Working in a data mine Data mining the process of searching huge amounts of data with the hope of finding a pattern Great for managing inventory of products Example Amazon and Netflix can suggest items that fit your taste 2 Arts Ink Paints and a Notebook Must sell your work with internet Adobe Programs dancers movements captured by computers to make it better edit photos on programming better 3 Video Game Design A long Way from Pac Man Game development will most likely stay in in the United States instead of being offshored like other programming jobs Mastering software animation tools to create new worlds team work not done by single individual 4 Education Teaching and Learning Research Tool Give students a taste of running a global business Virtual tours teachers need to know how to use black board etc 5 Law Enforcement Put Down That Mouse You re Under Arrest Computers in cop cars Facial Reconstruction systems Have a huge database to compare similar crimes to look for patterns Computer Forensics is a growing field Computer based training to tech officers to recognize lies and evasive behavior 6 Medicine The Chip Within Cells cultured on a chip until it formed with a nearby cell The chip contains a transistor that stimulates the touching cell that sends the pulse through the body Sight to the blind VeriChip Personal Id Chip In baby s bracelets to locate position 7 Science Simulating Reality Tornado forecasting Model the structure of solar magnetic flares Recreating ruins on screen 8 Psychology You Should Smile Now Affective Computing is computing that relates to emotion or deliberately tries to influence emotion ESP for Autism relays peoples mood Get people back on track and focused Chapter 2 Looking at Computers 1 Computers Are Data Processing Devices A computer is a data processing device that performs four major functions 1 Input It Gathers data or allows people to enter data 2 Process calculates or organizes that data into information 3 Output displays data and information so users can see 4 Storage saves data and information for later What is the difference between data and information Data is a representation of a fact a figure or an idea It can be a number a word a picture or even a recording of sound Information is data that has been organized or presented in a meaningful fashion When data becomes meaningful Processing data into information Bits and Bytes The language of Computers How do computers process data into information The language of computers is binary language A binary language the 0 s and 1 s of computer language it is broken into binary digits called bits Eight bits combine to form a bytes Kilobytes 1 000 Bytes Megabytes 1 million bytes Gigabytes 1 billion bytes Terabyte 1 trillion bytes Your computer uses a combination of software and hardware to process data into information Hardware physical parts that can be touched Application Software Set of programs that are used to carry out a task System Software a set of programs that enables your computer s hardware devices and application software to work together a Most common type of system software is the Operating System b The program that controls the way in which your computer system functions c Controls and manages the hardware such as monitor and printer Your Computer s Hardware A peripheral device a component such as a monitor or keyboard that is connected to the computer Notebook Computer portable computer that has a keyboard monitor in a single compact case run by battery or ac adapter Netbook smaller notebook computer longer battery life Tablet PC like notebook but flat use a special pen and virtual keyboard Desktop Computer for the use a single location stationary All in one Computer computers processor built into monitor not separate like desktop Mainframe Large computer that supports hundreds of users simultaneously Supercomputer specially designed computer that can perform complex calculations extremely rapidly Runs a few amount of programs as quickly as possible Embedded Computer a computer chip that resides in another device They are self
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