1. Categories of Application software
1.1. Freeware
1.2. Shareware
1.3. Web Application
1.4. Custom Software
1.5. Packaged Software
1.6. Open source software
1.7. Public-Domain Software
2. Format of Application Software
2.1. Business Software
2.1.1. Accounting Software
2.1.2. Business Software Suite
2.1.3. Business Software for Phones
2.1.4. Project Management Software
2.1.5. Personal Information Manager Software
2.1.6. Enterprise Computing Software
2.1.7. Word Processing Software
2.1.7.1. Microsoft office word 2007
2.1.8. Spreadsheet Software
2.1.8.1. Microsoft office excel 2007
2.1.9. Database Software
2.1.9.1. Microsoft office excel 2007
2.1.10. Note Taking Software
2.1.10.1. Microsoft office excel 2007
2.1.11. Document Management Software
2.1.11.1. Adobe Reader
2.1.12. Presentation Software
2.1.12.1. Macromedia flash 8
2.1.12.2. Microsoft office Powerpoint 2007
2.2. Graphic and Multimedia Software
2.2.1. Multimedia Authoring Software
2.2.2. Video and Audio Software
2.2.2.1. Movie Maker
2.2.3. Computer-Aided Design (CAD) Software
2.2.3.1. Auto CAD 2010
2.2.4. Desktop Publishing Software (DTP)
2.2.4.1. Adobe Photoshop CS4
2.2.5. Photo Editing Software
2.2.5.1. Picasa 3
2.2.5.2. Adobe Photoshop CS4
2.2.6. Webpage Authoring Software
2.2.6.1. Macromedia Dreamweaver
2.3. Software for Home,Personal,Education use
2.3.1. Entertainment Software
2.3.2. Photo Editing and Photo Management Software
2.3.3. Video and Audio Software
2.3.4. Personal Finance Software
2.3.5. Paint/Image Editing Software
2.3.6. Travel and Mapping Software
2.3.7. Reference And Education Software
2.3.8. Legal Software
2.3.8.1. WillMaker
2.3.9. Tax Preparation Software
2.3.9.1. Tax ACT
2.3.10. Desktop Publishing Software
2.3.10.1. Microsoft office Publisher 2007
2.4. Web Application
2.4.1. https://docs.google.com
2.5. Application Software for Communications
2.5.1. Web Browser
2.5.2. E-mail
2.5.3. Chatroom