1. 110CSC004/105 Information Technology Dr Barry McCollum (b.mccollum@qub.ac.uk)

2. Introduction Lecture Provide Documentation Aims and Objectives Course Structure –Assign Practical Classes Assessment Syllabus

3. Aims and Objectives Aim –to provide the fundamental principles of Information Technology word processing spreadsheets, databases, powerpoint Internet E Commerce Objectives –gain an appreciation of application software packages –be able to construct a useful spreadsheet –understand the fundamentals of database systems and be able to construct simple relational databases

4. Aims and Objectives Objectives (continued) –learn to use Microsoft Word, Excel, Access and PowerPoint –Learn HTML and be able to create World Wide Web pages –Foundations of Electronic Commerce

5. Course Structure Read in detail the course material Practical based Structure Emphases on learning

6. Course Structure 24 Lectures –Monday and Wednesday 10 - 11am Practical Sessions –2 hour duration –Time to be arranged (beginning 2nd week) Assessment Sessions – Fridays 10 - 11 am (beginning 3rd week)

7. Module Assessment Assessment classes20 % Web Project10 % Class Test10 % Examination60 %

8. Text Books Mastering Microsoft Office (2 nd Edition) –Clare Martin & Helen Holding HTML 4 for the World Wide Web (4 th Edition) –Elizabeth Castro Both books are Compulsory.

9. Weekly Personal Study 2 x 1 hourlectures2 hours 1 x 2 hourpractical class2 hours 1 x 1 hourassessment class1 hour 2 x 2 hourpersonal study of lecture material 1 x 4 hourpreparation for practicals and / or project work

10. Syllabus Course Outline HTML –World Wide Web, simple first page –Advanced Word processing –advanced exercises Spreadsheets –file management, cell manipulation, layout, functions, formulas. –Charts, multi-worksheet workbooks

11. Syllabus (continued) Databases –introduction, tables –relationships, queries, forms, reports –Design and implementation PowerPoint Industry trends –E-commerce

12. Hardware 100 plus computers [PCs] in the first floor lab 170 computers in the ground floor lab Each computer contains a Intel Pentium processor and is connected to the School and University networks University has seven Student Computer Centres

13. Software Each computer has an operating system –program that co-ordinates the use of the hardware resources: processor memory discs input/output –enables several programs to run at one time –Windows NT

14. Windows NT Route by which we use other programs –Netscape Internet Browser –Notepad –Microsoft Office Provides a File System for storing programs and data –Windows explorer –my computer Allows computers to be networked

15. Internet Computers connected by telecommunication networks Each computer is identified by a four part IP address e.g. –143.117.5.35 May have a name attached e.g. –Lackey.cs.qub.ac.uk Any computer can direct messages around the world Introduction by Elizabeth Castro

16. Internet Interactive electronic web that connects people and businesses that have access to networks and allows them to send and receive E-mail and to participate in a number of other activities around the clock In essence, the Internet provides two basic capabilities –Information retrieval –Worldwide communication

17. E Mail Most popular networked application Messages are stored in a central post office (an area of disk) mail server Each user has a private mailbox on a mail server To gain access the user will need a username and a password

18. Structure of a Message An e-mail message contains basic elements –header information pertaining to sending a message –To address of the recipient –Subject summary of message –Cc who should receive copies of message The text of the message appears in the area below the header

19. An E Mail Address User may send messages to anyone on the Internet Address depends on the location of the recipient Example –B.McCollum@qub.ac.uk Username, mail server, domain by which the computer is connected

20. E Mail - Domains Networks that comprise the internet are organised into a series of domains Enable E Mails to be delivered Universities belong to the “ac” domain within the UK Government agencies are in the “gov” domain Commercial organisations are in the “com” domain

21. Internet - History Advanced Research Projects Agency Network (ARPANET) Linked Department of Defense centers with Universities Exchange of data through use of Protocols Other organisations joined

22. How the Internet Works Data is transmitted through a series of protocols known collectively as TCP/IP Transmission Control Protocol/Internet Protocol Data is sent from one network to the next in packets, each packet limited in size The rules for creating, addressing and sending the packets are specifies by TCP/IP

23. The TCP portion – divides the file into packets –numbers each packet The IP portion sends each packet on its way by specifying the addresses of the sending and receiving computers so that the routers will be able to do the same

24. Internet - Access Access through a company’s connection or through commercial online services –CompuServe –Microsoft Network (MSN) A standalone PC will gain access through a dial-up connection via a modem Communicate with any computer which follows the TCP/IP protocol

25. Current Internet Issues security, copyright, theft, unauthorised access (hacking) information overload employees are “surfing the net” for fun rather than for business purpose traffic jams lack of uniform, interface ownership

26. The Internet applications communication and collaboration (using email, computer conferencing) advertising/sending goods and services access to online information services and online databases electronic publishing commercial (data acquisition, exchange, distribution)

27. The World Wide Web Originally uninviting and difficult to use –ftp –Telnet –Archie –Gopher No common user interface to speed learning Graphics and sound were not available

28. World Wide Web organised as a hypertext tool designed to improve access to the Net but now commonly used as a term for the body of data available on the net. allows users to access and display documents and graphics stored on any server on the internet Can be thought of as a large subset of the Internet

29. World Wide Web Consists of hypertext and/or hypermedia Hypertext document –contains a link to another document Hypermedia –provides links to graphics, sound and videoclips effortless movement from one document to another (HTML)

30. Hypertext Transfer Protocol (http) Every client must be able to display every document from every server Data travels between clients and servers through a protocol known as http A browser is required - Netscape Navigator Every server/document has a unique address This is known as the documents URL

31. Uniform Resource Locator (URL) Location appears in the location text box Primarily a means of navigating the Web Indicates the address of the Web server from which a document has been requested A URL consists of –method of access –internet address of the web server –path in the directory structure (optional) –document name http://www.abs.u_net.com/vt/main.html

32. Search Engines Allows information to be found easily Search Form Key word search Query Each uses own database of documents Each has a special program - spider –automatically searches the web on a periodic basis No consensus on the “best” engine

33. Search Engines Alta Vistahttp://www.altavista.com InfoSeekhttp://www.infoseek.com Lycoshttp://www.lycos.com OpenTexthttp://www.opentext.com WebCrawlerhttp://www.webcrawler.com Yahoohttp://www.yahoo.com

34. Questions What types of Browsers are there? What are the differences? What is XML? What are the advantages of using XML?