View
217
Download
0
Tags:
Embed Size (px)
Citation preview
1
UNIXLINUX
Basic Operations & Concepts
NETS - 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.
EDT 3470 - Spring 2007
2
Draft - New Standards
Technology 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.
3
Why do I need to learn about this stuff?
Because…you’ll need this knowledge to… Differentiate yourself from other job-seeking teacher
candidates
Become more of an Educational Technology producer in your classroom -- and not just a user
Be able to speak intelligently when dealing with:
District technology staff, REMCs/ISDs, and vendors
Advanced students and their parents or guardians
It’s a National Educational Technology Standard (NETS)
4
Farming Jobs – 1900 vs. 2000
•In 1900, 92% of U.S. population worked on a farm
•In 2000, that figure was about 2 %
•What happened?
5
Technology Happened
Tractors were developed that could do the work of many horses, oxen, and people.
Major change didn’t happen overnight -- the technology and performance incrementally improved -- starting with steam engines, then internal combustion engines, and now -- electronics assisted intelligent tractors
6
Impact of Technology on Farming
Farming output continued to increase throughout the 20th Century
Farm size increased -- smaller farms were aggregated into larger farms
Reduced the need for farm hands, beast of burden, blacksmiths, and other manual labor jobs
Increased the need for tractor mechanics, agriculture educators, transportation and distribution jobs, and other totally new crop related jobs
7
Some Computer History Trivia
How was Napoleon important to the development of the modern computer?
Q:
8
Believe it or not…
Napoleon’s 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 Moore’s Law
A:
9
What is Moore’s Law?
10
But Moore was not the first
Moore'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)…
1. From the mechanical calculating devices used in the 1890 US Census
2. To Turing's relay-based "Robinson" machine that cracked the Nazi enigma code
3. To the CBS vacuum tube computer that predicted the election of Eisenhower
4. To the transistor-based machines used in the first space launches
5. To integrated-circuit-based personal computers.
11
Technology causes change
•So, 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 learn
Because technology continues torapidly change how people work
-- What should you do?
12
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.
13
Overview Agenda
1. Hardware & Systems 1. Hardware & Systems
2. Networking2. Networking
3. Tools for Making the Connection3. Tools for Making the Connection
4. Operating Systems 4. Operating Systems
5. Demonstrating Proficiency5. Demonstrating Proficiency
14
Basic Computer Fundamentals
Lesson 1History
Lesson 24 Components
Lesson 3Input
Lesson 4Memory &
Storage
Lesson 5Processor
Lesson 6Output
15
Quick Quiz
Computer Hardware Systems
16
Computer Hardware Systems
InputInput Storage/ProcessStorage/Process OutputOutput
KeyboardMouseScannerPDADigital ProbeCameraPortable Storage
Memory•Silicon Chip•Mechanical
C.P.U.
MonitorPrinterAudioVideo
17
Network Systems
NetworkNetworkHardwareHardware
Servers
NIC
Car
ds
Hubs
Rou
ters
18
Network Interface Card
RJ45 - 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 NIC
Desktop NIC
NotebookWireless NIC
19
Hubs and Switches
10/100 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.
20
Network Router
(row´ter): 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 ISP’s 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.com
Wireless RouterEnterprise Routers
Internet
21
Network Servers
•Application server, a server dedicated to running certain software applications
•Communications server, carrier-grade computing platform for communications networks
•Database server, provides database services
•Fax server, provides fax services for clients
•File server, provides file services
•Game server, a server that video game clients connect to in order to play online together
•Web 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
22
Common Networks
Hubs &LANs
WANs
Room
Floor
Building
Campus
Enterprise
Region
Internet
The World
23
WMU’s WAN
24
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.
25
Internet URL Address Uniform Resource Locator
www.yahoo.com = 206.191.158.55
or
26
URL - Less Technical Example
27
A Simple Network
What you see & what you don’t
28
Making the Connection
Video & Voice over IP
Blogs
Chat
Web PublishingE-mail
Internet II
Internet 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.
29
On the Horizon
The following networked technologies may have a huge impact once they reach critical mass…
RFID
Open Source Software
Intelligent Work Flow
Grid Computing
Source: Burton Group
30
Operating Systems
“An 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
31
I’m so confused
There are over 100 different operating systems – not including OS’s for hand-held PC’s
At least be aware of two key OS’s for desktop PC’s, notebook PC’s, and servers -- and their popular derivatives
Microsoft Windows (Vista, XP, 2000, 98, 95, 3.1, MS-DOS) Windows Server
Unix Macintosh OS X: Apple Linux: Open Source vendors and consortiums Solaris: Sun HP-UX: HP And others
32
PC vs. Mac
Although Linux use is rapidly growing in popularity --the two most talked about OS’s in K-12 are Microsoft’s Windows and Apple’s OS X
“Which to choose” is a highly controversial topic
I chose a PC over a Mac
Maybe it no longer matters
You will need to be very familiar with one of these OS’s (if not with both)
33
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.
34
What to do when things go wrong
Some basic things you should know how to do -- before requesting help from Tech Support:
1. Can you update your system
2. Do you know how to check your connections
3. When to reboot --- OS’s sometimes get confused
4. Know the basics of your OS
5. Backup up your data (before things go wrong)
35
NETS Standards 1
To make informed choices about technology systems, resources, and services – first ask yourself…
Will it promote learning?
How difficult is it to use?
What is the total cost of ownership (TCO), including multi-year support and fees?
36
Buying Cooperatives and Professional Conferences
REMCs State of Michigan MICTA MACUL NECC
Get advice and special pricing from:
But don’t forget about working through your district’s normal channels
37
It’s not just about hardware, anymore
Hardware
OperatingSystems Application
Software
LANs & WANs
Internet
Computer System
38
Collaboration Tools
Administration SpaceMy Reports
My Calendar
My School Events
Student SpaceMy Homework
My Calendar
My Resources
My Files
Teachers Toolkit/ WorkspaceMy Buddy List
My Calendar
My Seating Charts
Parent SpaceMy Child’s Assignments
My Calendar (Child’s Overlay)
My Child’s Attendance
39
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.
And remember…
40
UNIXLINUX
The EndLe FinDas Ende端Конец