Basics¶

Hardware¶

• input: Keyboard/Mouse
• output: Monitor, Printer, Headphone
• base unit:
  • processor
  • RAM
  • hard disk
  • power supply

Software¶

• operating system
  • Microsoft Windows 85%
  • Mac OS (based on Unix) 10%
  • Linux (based on Unix) 5% → Why using Linux and not Windows?

Mouse¶

• cleaning mouses
• mouse-functions:
  • left click LC
  • right click RC
  • double click = 2 x LC (fast)

Windows¶

Titlebar: click, hold and move → move the window

Corners & edges: moving the mouse over corners & edges leads to changed symbols: click, hold and move → resize the window

Buttons on the right upper corner:

 close the window (and the according application) → content forgotten
 hide=minimize the Window → the Window can be opened again with the same content (restored) by clicking on the symbol in the panel/taskbar
 maximize the window → the window fills the display and the button changes to . Clicking the symbol  resizes the window to the previous size.
 reduces the window to the titlebar and the button changes to . Clicking the symbol  shows the whole window again.

 

Exercises:¶

Open two windows, resize and place them on the screen beneath each other filling the whole screen:

window

window

Open three windos and place them according to the following drawing (the last row symbolizes the panel):

window 1 (enabled)
window 2			window 3
window 1		window 2		window 3

Windows can be enabled (active) or disabled (inactive). If you want to do anything with a window (for example change the size or input text), you have to enable it first. You can enable a window by clicking into it. The enabled window comes to the foreground and usually gets another titlebar-color.

Maximized windows can’t be resized – press  first! The button will change to .

Keyboard¶

Function-Keys
	Special Keys     Arrows	Numbers

Open Applications > Office > Abiword (a text editor we need for practicing)

• Shift and Alt Gr change the character that’s written when you press a button.
  • Press Q
  • Press Shift + Q simultaneous
  • Press Alt Gr + Q simultaneous

• Caps Lock (right on top of the left shift) locks to CAPITAL LETTERS. A light on the upper right corner on the keyboard should indicate activated Caps Lock.
  • Press caps lock
  • Type letters and see what happens
  • Press caps lock again to switch it off

• Enter/Return inserts a new line.

• Space (the long empty button on the keyboard) inserts an empty space between letters.

• Arrows, backspace & Entf:
  • Type ABC
  • Use the arrow keys to move the cursor between A and B
  • Remove the A by pressing backspace (in the upper right corner)
  • Remove the B by pressing Entf

Type two new lines with the following text:

Dimitris says
“I am tired”

(The red line under ‘Dimitris’ indicates, that the computer doesn’t know the word ‘Dimitris’.)