Software Compatibility

A lot of softwares are been developed to enhance the effective use of computers. Nevertheless, we need to enquire about the compatibility of this softwares.
Some of the things to consider are:
1. Minimum memory size.
2. Minimum processor speed
3. Screen resolution requirement.
4.Sofware bit version. e.g you should not install a 64-bit software on a 32-bit Operating system.
. . . amongst others.