2CS21 TUTORIAL 1 (PART 1)

(Week 2 Starting October 5th)


1. OVERVIEW

This practical session takes the form of an interactive terminal session. Read the notes carefully and follow the instructions given. You will be guided through the process of logging in to the HP computer system, executing commands and editing files.


2. LOGGING IN

Your tutor will guide you through the process of logging in to the computer system. To do this you will need a username and a password which you will be issued with at your first tutorial (you will aslo br provided with a yellow booklet entitled "An Introductory Guide to The Departmental Computing Facilities"). If you make a mistake while logging in the system will tell you and you should try again. Ask your tutor if you have any difficulty. Once you have successfully logged on, the X WINDOWING SYSTEM will set up 2 terminal windows for you (an example window is given below), a clock, a "UNIX manual" browser, a new mail indicator and a tool bar. Note that both windows contain a dollar prompt (e.g. kuban-278 $).

More information can be found regarding user names and passwords and the login procedure in the appropriate section of the "Computer Science Introductory Guide".


3. USING WINDOWS

In order to type a UNIX command, one of the terminal windows must have input focus, i.e. it must contain the mouse cursor. Move the mouse until you are sure the pointer on the screen is within one of the windows. Anything you type will now appear in that window. Try it!

Now try the following:

  1. Move a window by left buttoning on the title bar and, while holding down the button, drag the screen.
  2. Resize a window by left buttoning on the resize titlebutton and, while holding the button down, increase the size of the box by dragging to the left and downwards. To decrease the size of the window drag in the opposite directions.
  3. Iconify the window by clicking in the iconify titlebutton. The window will shrink to a pictorial representation of the window called an icon. Left button on the icon!
  4. Obscure (overlap) one of your two windows so that one is partially covered by the other (ensure that at least a portion of the scroll bar for the covered window is visible). See what happens when you button on the scroll bar of the covered window!

An overview of the X--Windows (version 11) graphics system can be found in the "Introductory guide" together with details of its practical usage and the operations it supports.


4. ACCESSING THE 2CS21 COURSE MATERIAL

WWW LOGO

All course material for 2CS21 is available in the form of a hierarchy of World Wide Web (WWW) pages (also referred to simply as web pages). To access the notes you must invoke a special program called a web browser. We will be using one called "netscape", there are many others. To run netscape click on the web button on your tool bar (see right). A window will appear outlining the conditions of the Netscape software licence agreement. Click on the accept button indicating that you accept these conditions. After a short pause a screen of the following form will appear.

HOME PAGE

This is the Department of Computer Science at the University of Liverpool's home page. Your tutor will now briefly illustrate the following:

  1. The interface
  2. How to access the internal server and particularly the Introductory Guide to Departmental Computing facilities and the 2CS21 course notes web pages.
  3. The use of the "back" and "forward" keys.
  4. How to create bookmarks.
  5. Where to find Part 2 of this tutorial.

For more information on using the World Wide Web refer to Appendix F of the Introductory Guide.



Continue to Part 2.



Created and maintained by Frans Coenen. Last updated 11 October 1999