1. CSCE101 – Ch 3 September 21, 2006

2. Exam #1 Thursday, September 28, 2006 –20 True-False –15 Fill-in-the-Blank –15 Short Answer –2 Extra Credit Short Answer

3. Device Drivers Basic device drivers New peripherals –Automatic install –CD provided Control Panel…Performance and Maintenance

4. Utility Programs Also known as service programs Built-in or external Disk Cleanup & Backup Disk Defragmentation Data Recovery – Norton Utilities Virus Protection – Antivirus software Data Compression- PkZip

5. Disk Structure Cylinders, Tracks, Sectors, Clusters FAT or NTFS File Allocation is by cluster onto parallel tracks Fragmentation issue

6. Special Purpose Keys Key combinations: Ctrl-Alt-Del, application specific Soft keys Macros Macro Security

7. Graphical User Interface GUI – icons, menus, rollovers, title bar, menu bar, toolbar, taskbar

8. Common Operating Systems Legacy systems – DOS Apple, VisiCalc, Lisa, MAC, portable, crisis, iPod, iTunes MAC OS X – proprietary software, conflict-free –Spotlight – desktop search –Dashboard – alleviates flood of news (webcasts, rss feeds) –Automator – like a macro for OS environment

9. Common Operating Systems Name-recognition, security (market share, technical flaws, features turned off) Dual-route strategy, eye-candy vs. networking and security, enormous market penetration Windows – proprietary software –Plug and play –Windows XP (Home and media) –Windows Vista (focus on security, stability, ease of use [ease of deployment, intuitive use])

10. Operating Systems OEM (Original Equipment Manufacturers) vs. Retail versions Pack and patch approach –Service packs –Patches –Automatic upgrades Xen - free software Open Source software vs. proprietary software

11. Common Operating Systems Network Operating Systems – Novell NetWare (Novell Open Enterprise) – Windows NT and 2000, Windows for Servers – Versions of Unix: Solaris, BSD, Linux Handheld OS –Palm OS –Windows CE/Pocket, PC/CE,.NET –Windows Media Player for Cellphones & PDAs –Symbian OS

12. Linux Gnu project Freax kernel Historically, used mainly as a server operating system (2004 – 25% servers, 2.8% desktop installations) Stable and reliable

13. More on Linux Linux and China Permutations of Linux –From Supercomputers to Handheld –Bundled and unbundled –Multiple vendors The future of Linux