Operating Systems

1
Operating Systems

• Chapter 5

2
The Operating System

• When working with multimedia, the operating
  system is perhaps the most important, the most
  complex, and the least visible software that your
  computer uses.

3
The Four Layers of a Computer

• Your computer is a system of four interdependent
  layers
• Hardware
• BIOS
• Operating System
• Application Software

4
What do the four layers do?

• Hardware activates the BIOS
• BIOS (basic input/output system) starts the
  operating system
• Operating System loads drivers, networking
  services, and application software into the
  computers RAM
• Application Software allows you to create your
  multimedia project

5
What are programming languages?

• Programming languages provide instructions to
  operating systems.

6
Types of Programming Languages

• Machine language the only language a computers
  CPU can read
• Assembly language a programming language that
  the CPU can quickly encode to machine language
• Low-level programming language Programming
  languages that computers can interpret quickly
  but are not like human language

7
More Programming Languages

• High-level programming languages
• Are programming languages that resemble human
  language
• Need compilers to convert high-level languages to
  machine language
• Examples C, Java, Visual Basic

8
Graphical User Interface (GUI)

• Microsoft Windows
• Created in 1985
• The most used PC operating system
• Runs a huge number of applications
• Apple Mac OS
• Derived from the first PCs to use GUI
• Preferred by many designers and multimedia
  producers
• Applications are often not compatible with Windows

9
PDA Operating Systems

• The two most popular PDA operating systems
  are
• Palm OS
• Windows CE

10
Network Operating Systems

• Network operating systems are designed to
  allow many users to share files and resources.

11
Types of Network OS

• Network operating systems include
• UNIX designed to work with many kinds of
  computers
• Linux a version of UNIX distributed for free
• Mac OS X for networks by Apple
• Windows NT Microsofts network OS
• Apache Web server software distributed for free