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’.)
