5. Power supply
CD & DVD drives
Case fan
CPU &
CPU fan
Graphics card Memory (RAM) Hard Disk
On/off button
Computer Components : Hardware
6. Hard Disk : stores any kind of data
Nonvolatile, large capacity
A Western Digital 250 GB hard disk
Computer Components : Hardware
7. Memory : temporarily saves any kind of data
Volatile, smaller capacity
Faster than hard disk
Kingston 1G RAM
Computer Components : Hardware
8. CPU : carries out instructions of programs
It is a brain of the computer
Intel CPU (upper side) Intel CPU (bottom side)
Computer Components : Hardware
9. CPU : carries out instructions of programs
It is a brain of the computer
AMD CPU
Computer Components : Hardware
10. Graphics card : determines the resolution
Directly related to monitor
Radion
Computer Components : Hardware
11. Power supply : provides power to devices
Computer Components : Hardware
26. Software Copyrights and Licenses
Copyright – is a form of legal protection
that grants the author of an original work
the exclusive right to copy, distributed,
sell, and edit that work except under
special circumstances described by
copyright laws.
Software Licenses – also known as
license agreement, is a legal contract that
defines the way in which a computer
program may be used.
27. SOFTWARE LICENSES CHARACTERISTICS
Public Domain Software • May be freely copied, distributed and
resold
• Not protected by copyright
Commercial Software • Sold in computer stores or at websites
• Adheres closely to the limitations provided
by copyright law
Freeware • A copyrighted software that is available for
free
• Allows you to use, copy and distributed the
software
Shareware • A copyrighted software marketed under a
“try before you buy” policy
Open – Source software • May be sold or distributed free charges
• Uncompiled program instructions are
available to programmers who want to
alter and improve the software
29. • Arithmetical operation
• Logical operation
Documents
Songs
Various programs
Movies
CPU
Memory
Hard disk
Pictures
Computer Booting : before booting
30. • Arithmetical operation
• Logical operation
Documents
Songs
Various programs
Movies
CPU
Memory
Hard disk
…
Pictures
Computer Booting : when booting
32. Shutdown
(left click on mouse)
Type in password
(using keyboard)
Computer user name
When installing OS (operating system),
computer user name and password are configured
Shutdown options
Computer Booting : after booting
34. Let’s change the desktop background
1. Left click
The area in which this picture is shown is desktop.
This picture is desktop background.
Operating System
53. Run windows explorer program
1. Using start button
2. Double click on a program icon
3. Win + r and type in a program name
4. Win + e
OS : Run a program
54. Run windows explorer program
1. Using start button
2. Double click on a program icon
3. Win + r and type in a program name
4. Win + e
OS : Run a program
1 and 2 : using mouse
3 and 4 : using keyboard
1 and 3 : annoying (takes time)
2 and 4 : easy and fast
55. • Arithmetical operation
• Logical operation
Documents
Songs
Various programs
Movies
CPU
Memory
Hard disk
Pictures
Explorer
OS : Run a program