1. Software

2. System Software Provides GUI
Manages the resources of the computer system
Defines the Software Platform
Components of System Software
Operating system - controls the use of hardware resources, External and Internal
Utilities --supplement the system
Device Drivers - control peripheral devices

3. Operating System RTOS Single User/Single tasking
Single User/Multi-tasking
Multi-User

4. Popular OS DOS Windows 3.x (operating environments) 1990
3.0, 3.1, 3.11
Windows 95 (improved GUI, more efficient multitasking) 1995
Windows 98 (more internet integration, easier to add devices (Upgrade to Windows 95)
Windows ME (upgrade to WIndows98)
Windows XP 2001
Windows NT (designed for networks looks just like Windows) 1996
Windows 2000 (faster performance, networking version (Server family), start menu displays only apps use most frequently), preview multimedia files in Windows before opening) 2000
Unix, Linux
Network OS (NOS) Windows NT Server, Windows 2000 Server, UNIX, Linux, Solaris
Embedded (Palm OS, Windows CE)

6. Vista, A First Look…
A redesigned Start Menu in Windows Vista lets users start typing the name of the application they wish to open.

7. Treeview
Easier to Navigate without all those Submenus

8. Searching Files

9. A First Look…
The Pictures and Video folder in Windows Vista contains new information about a picture, including the type of camera used and a user-assigned rating.

10. Organize Music

11. Parental Control Options

12. Operating System
A set of programs containing instructions that coordinate all activities among hardware resources
Allows you to run applications software
Some applications run on multiple platforms (cross-platform)
Kernel
Memory-resident

13. Terminology Software Platform Cross-Platform Memory resident
Single User/Single Tasking
Multi Tasking
Multi User
Multi Processing
Fault Tolerant Systems

14. Features of an Operating System
Memory Mgt (optimize RAM)
VM (Virtual Memory)
Swap File, Paging, Thrashing
Handling Print Jobs
Buffer, Spooling, Print Spooler
Configuring Devices
Monitoring System Performance
Security

17. Booting a Computer Power Supply
CPU chip resets itself and looks for the BIOS ROM (basic input output system)
BIOS executes the POST(power on self test)
Results are compared to CMOS
BIOS looks for boot program that holds the OS
Boot program is executed and loads the kernel of the OS
OS takes control
OS loads registry (configuration information), device drivers are loaded
Remainder of OS is loaded, icons appear , Start UP folder is executed and display is set