1. Types of software

2. Application software:
Off the shelf:
Downlodeable, ready to use, not buggy,
Shareware:
30 day trial software, might not have all features.
Embedded:
Software built into a car or computer.
Freeware:
Free of charge software e.g. scratch, sketchup, MSN
Open/Closed source:
Anyone can access it and access the source coding, free, changeable.
Protected by intellectual property rights, support available, not very buggy.
OS Functions:
Monitoring input and outputs, ensuring data is located in the right areas, file management,
Utility software:
Antivirus, backup software, defrag, helps it run smoothly