1. Introduction to WebFX

2. Summary of Last Lectures n Introduction to computers n Computer hardware and software –computer microcomputer minicomputer mainframe computer IBM PC –bit, byte, kilobyte (KB), megabyte (MB), gigabyte (GB), terabyte –cpu, memory, RAM, ROM –secondary storage - hard disk, floppy, and CD-ROM – modem –graphics adapter pixel resolution –operating system, applications software

3. Introduction to WebFX n A network is a system of interconnected computers n The computers can be connected via a wide range of communications systems, including phone lines, satellite links, radio waves, etc n Computers in a network can send messages to each other (e.g. e-mail), send files to each other, run programs and send output to each other

4. Server and Client n A computer which provides services to another (such as a data or program file) is referred to as a server. n It uses special software to provide services to one or more other computers on the network, which are often referred to as clients, or the users desktop computers.

5. Types of Networks n LAN (Local Area Network) – A LAN is generally limited to a specific area, such as a building, or a campus. The computers on a LAN are able to share data with each other, but not with computers outside the LAN n WAN (Wide Area Network) – A WAN is a network system which can extend over a wide geographic area, and is not limited to a specific physical area

6. LAN n Server –computers dedicated to the task of providing file sharing and other services to computers on the LAN. These special computers are called file servers, and they are often high- end computers which can deal with requests from a number of computers simultaneously –Novell Netware and Windows NT Server are examples of a server-based networking system. WebFX is a Windows NT 4.0 Server- based system.

7. WAN n Use a variety of technologies to provide linkages between widely separated computers n The most common, and largest WAN is the Internet, which uses an underlying technology called TCP/IP (Transmission Control Protocol/Internet Protocol) to link systems together.

8. Introduction to WebFX n WebFX (Windows NT 4.0 Network): WebFX is a general name for the computing initiative at St.F.X., and is sometimes used to refer to the campus networking system.

12. What is on WebFX n Caesar is the applications server; n Iago is the Internet server, and provides Web, Mail, Newsgroup, Calendar and Directory servers; n Julius is the student file server; n MacBeth is the printer server.

13. WebFX for Students n All students on campus must login to WebFX to use any computer resources on campus. n When logged in to WebFX, users can access any software applications (Windows and DOS) for which you have valid permissions. n Home Directory - H: n Web Directory - W:

14. Using WebFX n To access WebFX, you need –WebFX account - This username (e.g. x2001xyz) provides you with access to WebFX domain;

15. Login & Logout n To login: –CTRL + ALT + DEL ---> –enter username (x2001abc) ---> –TAB ---> enter password ---> –make sure bottom says WebFX---> ENTER n To Logout –® Start®/Shutdown –login as different user (Never leave your computer without logging out first)

16. Change Password n Change network account password to an easy to remember combination of numbers and letters (at least 6) letter: n Ctrl + ALT + DEL at NT screen ;

17. Printers on Campus n A number of network printers are available on campus. n Lab printers (laser printers) have a cost associated with their use. –Users are given a preliminary account containing $12.50, –printing costs $0.05 per page, –billing occurs at the end of the month (be careful and there is interest).

18. Printing under WebFX n Printers on campus for students include dot matrix printers (printing is free) and laser printers (printing has a cost). n Make sure you select the proper printer before you click the print button –The most common mistake people make is to click the Quick-Print button (e.g. in Word ) before selecting the printer from the File-Print menu option.

19. Printing under WebFX n Try not to waste paper. Use the Print Preview function when available to make sure that your document will print the way you want before you print it. n Make sure you select a default printer, otherwise you won’t be able to print. n To see Printer Queue: Start/Settings/Printers - right click on printer and open it- you can only delete your own jobs

20. Backing Up Your Data n Save important files in your H: directory to backup your data. This network drive is backed up on a daily basis (10 MB limit) n You should still maintain your own local backups since it is costly to restore data from backup tapes n Don’t save to the C: drive! n Use W: for web documents only!

21. Backing Up Your Data n Back up using floppy diskettes: –label the floppy as a backup –check the floppy regularly for bad sectors with the NT Error-Checking Tool (right click the A: drive icon in Explorer, choose Properties-Tools-Error Checking) –check the floppy regularly for viruses (use Norton program) –use the write-protect tab when the floppy is not in use.

22. Summary n Networks n WebFX