basic operations & concepts
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DESCRIPTIONNETS - Standard 1 (an expectation for your students) Students demonstrate a sound understanding of the nature and operation of technology systems. Students are proficient in the use of technology. Basic Operations & Concepts. EDT 3470 - Spring 2007. Draft - New Standards. - PowerPoint PPT Presentation
Draft - New StandardsTechnology Operations and Concepts Students demonstrate a sound understanding of technology concepts, systems, and operations. Students: A. understand and use technology systems. B. identify and use applications effectively and productively. C. troubleshoot systems and applications. D. transfer current knowledge to learning of new technologies.
Why do I need to learn about this stuff?Becauseyoull need this knowledge to
Differentiate yourself from other job-seeking teacher candidatesBecome more of an Educational Technology producer in your classroom -- and not just a userBe able to speak intelligently when dealing with: District technology staff, REMCs/ISDs, and vendorsAdvanced students and their parents or guardiansIts a National Educational Technology Standard (NETS)
Farming Jobs 1900 vs. 2000In 1900, 92% of U.S. population worked on a farm In 2000, that figure was about 2 %What happened?
Technology HappenedTractors were developed that could do the work of many horses, oxen, and people.Major change didnt happen overnight -- the technology and performance incrementally improved -- starting with steam engines, then internal combustion engines, and now -- electronics assisted intelligent tractors
Impact of Technology on FarmingFarming output continued to increase throughout the 20th CenturyFarm size increased -- smaller farms were aggregated into larger farms Reduced the need for farm hands, beast of burden, blacksmiths, and other manual labor jobsIncreased the need for tractor mechanics, agriculture educators, transportation and distribution jobs, and other totally new crop related jobs
Some Computer History Trivia
How was Napoleon important to the development of the modern computer?
Believe it or notNapoleons troops in Egypt buy shawls and start a fashion craze.
In Europe, the shawls get made on automated, perforated-paper control looms.
This gives an American engineer, Herman Hollerith, the idea to automate calculations using punch cards.
Which get used to control ENIAC, the first electronic computer.
That began the computing revolution -- and the phenomena that we call Moores LawA:
What is Moores Law?
But Moore was not the firstMoore's Law of Integrated Circuits was not the first, but the fifth paradigm to provide accelerating price-performance. Computing devices have been consistently multiplying in power (per unit of time) From the mechanical calculating devices used in the 1890 US Census To Turing's relay-based "Robinson" machine that cracked the Nazi enigma code To the CBS vacuum tube computer that predicted the election of EisenhowerTo the transistor-based machines used in the first space launchesTo integrated-circuit-based personal computers.
Technology causes changeSo, is there any reason to believe that this trend will not continue?
Throughout the centuries -- new technologies have changed the way people work, live, play -- and learnBecause technology continues torapidly change how people work -- What should you do?
NETS Standard 1 - TECHNOLOGY OPERATIONS AND CONCEPTS Teachers need to demonstrate a sound understanding of technology operations and concepts. Teachers [will] Demonstrate introductory knowledge, skills, and understanding of concepts related to technology (as described in the ISTE National Educational Technology Standards) Demonstrate continual growth in technology knowledge and skills to stay abreast of current and emerging technologies.
Overview Agenda1. Hardware & Systems 2. Networking3. Tools for Making the Connection4. Operating Systems 5. Demonstrating Proficiency
Basic Computer FundamentalsLesson 1 HistoryLesson 2 4 ComponentsLesson 3 InputLesson 4 Memory & StorageLesson 5 ProcessorLesson 6 Output
Computer Hardware Systems
Computer Hardware SystemsInputStorage/ProcessOutputKeyboardMouseScannerPDADigital ProbeCameraPortable StorageMemorySilicon ChipMechanical C.P.U.MonitorPrinterAudioVideo
Network SystemsNetworkHardwareServersNIC CardsHubsRouters
Network Interface CardRJ45 - Today, one of the most popular types of connections used with computer networks. RJ45 looks similar to a phone connector or RJ11 connector but is slightly larger.
LED -The LEDs, as shown in the above illustration, indicates if it detects a network; generally by a green light which may flash as it communicates, and then a red light which indicates collisions which will generally flash or not flash at all.
Desktop Wireless NICDesktop NICNotebook Wireless NIC
Hubs and Switches10/100 Ethernet Hubs are only half duplex - each client can only send OR receive data at a particular time. This connection is often called a Local Area Network or LAN.To take full advantage of a 10/100 Ethernet card, get an Ethernet Switch. A switch can operate at full duplex allowing your computers to send and receive at the same time. Basically, an Ethernet switch can be considered a faster version of an Ethernet hub.
Network Router(rowter): A device that forwards data packets along networks. A router is connected to at least two networks, commonly two LANs or WANs or a LAN and its ISPs network. Routers are located at gateways, the places where two or more networks connect.
Routers use headers and forwarding tables to determine the best path for forwarding the packets, and they use protocols such as ICMP to communicate with each other and configure the best route between any two hosts.
www.cisco.comwww.linksys.comWireless RouterEnterprise RoutersInternet
Application server, a server dedicated to running certain software applicationsCommunications server, carrier-grade computing platform for communications networksDatabase server, provides database servicesFax server, provides fax services for clientsFile server, provides file servicesGame server, a server that video game clients connect to in order to play online togetherWeb server, a server that HTTP clients connect to in order to send commands and receive responses along with data contents.A computer that provides services to other computers, or the software that runs on it
Common NetworksHubs & LANsWANs
Merit Network is a non-profit corporation governed by Michigan's public universities. Based in Ann Arbor, Michigan, Merit is America's longest running regional research and education network.
Internet URL Address Uniform Resource Locatorwww.yahoo.com = 18.104.22.168or
URL - Less Technical Example
A Simple NetworkWhat you see & what you dont
Making the ConnectionVideo & Voice over IPBlogsChatWeb PublishingE-mailInternet IIInternet II or Web 2.0 refers to a perceived or proposed second generation of internet mediated services, such as social networking sites, that emphasize online collaboration and sharing among users.
On the HorizonThe following networked technologies may have a huge impact once they reach critical massRFIDOpen Source SoftwareIntelligent Work FlowGrid ComputingSource: Burton Group
Operating SystemsAn operating system (OS) is a software program that manages the hardware and software resources of a computer. At the foundation of all system software, the OS performs basic tasks such as controlling and allocating memory, prioritizing system requests, controlling input and output devices, facilitating networking, and managing files. It also may provide a graphical user interface for higher level functions. www.Wikipedia.org
Im so confusedThere are over 100 different operating systems not including OSs for hand-held PCsAt least be aware of two key OSs for desktop PCs, notebook PCs, and servers -- and their popular derivatives
MicrosoftWindows (Vista, XP, 2000, 98, 95, 3.1, MS-DOS)Windows ServerUnixMacintosh OS X: AppleLinux: Open Source vendors and consortiumsSolaris: SunHP-UX: HPAnd others
PC vs. MacAlthough Linux use is rapidly growing in popularity -- the two most talked about OSs in K-12 are Microsofts Windows and Apples OS X Which to choose is a highly controversial topicI chose a PC over a MacMaybe it no longer matters
You will need to be very familiar with one of these OSs (if not with both)
Objectives NETS Benchmark 2 Demonstrate proficiency in the use of common input and output devices; solve routine hardware and software problems; and make informed choices about technology systems, resources, and services.
What to do when things go wrong Some basic things you should know how to do -- before requesting help from Tech Support:Can you update your system Do you know how to check your connectionsWhen to reboot --- OSs sometimes get confusedKnow the basics of your OS Backup up your data (before things go wrong)
NETS Standards 1To make informed choices about technology systems, resources, and services first ask yourselfWill it promote learning?How difficult is it to use?What is the total cost of ownership (TCO), including multi-year support and fees?
Buying Cooperatives and Professional ConferencesREMCsState of MichiganMICTAMACULNECCGet advice and special pricing from:But dont forget about working through your districts normal channels
Its not just about hardware, anymoreHardwareOperatingSystemsApplication SoftwareLANs & WANsInternetComputer System
Collaboration ToolsAdministration SpaceMy ReportsMy CalendarMy