S C S S S 1 S 0 S 4 Welcome to CS 104
Computers in Context 1.01
Living Without Computers 1.04 Which of these conveniences relies on a computer?
Computers in Perspective Purposes of Tools Single-purpose General-purpose 1.05
Computers Today: A Brief Taxonomy Multi-user computersSingle-user computers Special-purpose and Embedded computers Portable computers 1.16
People l Computers are only as smart as the people who use them and the people who program them l Computers have traits which people use to their advantage. They are fast, accurate, dependable and can store and move vast amounts of information.
Computer Connections: The Network Revolution People around the globe are connected to others via networked computers. LAN (local area network): designed to share resources and foster communication— usually in the same building. WAN (wide area network): designed to share resources and foster communication— around the globe. 1.21
The Internet Explosion A network of networks World Wide Web Electronic mail Electronic bulletin boards Multimedia simulations Audio-video links On-line resources 1.22
Living with Computers l What do you really need to know about computers? Implications? Applications? Explanations? 1.23
Explanations Learn basic concepts of:computer 1.24 l electronic device - digital l can manipulate any data l programmable
Explanations Learn basic concepts of: hardware software peripherals 1.24
Hardware l stuff you can touch or see l components
Software l programs - set of instructions to accomplish a task l package - suite of related programs l translucent - smarts l many varieties l one type application software l (productivity software)
Data l data - raw material l information - processed data
Applications Learn about the variety of software available: Word processing and desktop publishing Spreadsheets and databases Computer graphics Multimedia and hypermedia Telecommunication and networking Artificial intelligence General problem-solving Programming languages 1.25
Procedures l how to do computer related things l getting your account, remembering and keeping your password secret. l As part of this, we will look at common software interfaces, so you will know how to respond to the program.
Implications Learn about the impact of computers on your life: Threat to personal privacy Hazards of high-tech crime Risks of computer failures Threat of automation and dehumanization of work Abuse of information as a form of power Dangers of technology dependence 1.26
Questions