Advantages of AS/400

1. Layered Machine Architecture : It enables the users to move towards new hardware technology at anytime without disrupting user application programs.
2. Object orientated system : In AS/400 everything is object. Objects make users independent of the internal structure of the machine.
Objects occupies space on the disk.
On Unix/Windows, everything is a file
On Windows, files have extensions
On AS/400 object have types
3. Single Level Storage: Main storage and disk storage appears continguos. Storage management is left to machine.
4. Easy to use
5. We can assign certain amount of space, processor to system services.
6. To date, no viruses have been reported on the AS/400 platform.
7. AS/400 is one of the most reliable and stable platforms
8. Supports Virtualization
9. Supports 32/64 bit applications
10. Dynamic LPAR's (You can allocate CPU, RAM, Memory, Hard disk etc at anytime)
11. IBM gives global support

According to data collected by IBM, AS/400 customers have experienced on average less than 9 hours of unplanned down time per year. This means that AS/400 can provide the 99.9% availability that is needed for applications that are vital to your business.

A 1998 report by the International Data Corporation shows that the cost of staff required to maintain an AS/400 server is 40% less than that of a Unix server and 50% less than that of a NT server.