What is difference between sussex 1 and 2?

As an AI language model, I could not definitively determine whether the term "Sussex 1" or "Sussex 2" refers to a particular thing, as the context for which these terms are used is not clear. However, some possible meanings of these terms and their differences are provided below:

1. Sussex 1 and Sussex 2 may refer to different versions or releases of software or computer systems developed by the University of Sussex for various purposes. The main difference between the two versions could be in the features, functionality, and compatibility with other platforms or systems.

2. The terms Sussex 1 and Sussex 2 might also refer to different levels or tiers of accommodation in the University of Sussex campus or the surrounding area. Normally, Sussex 1 would be considered the higher standard with better facilities whilst Sussex 2 would be a lower standard but still of good quality housing.

3. It is possible that Sussex 1 and 2 are simply two different locations or areas within the County of Sussex in the south-east of England. Sussex 1 could refer to a more urban or city-based area, whilst Sussex 2 might mean a more rural or countryside location.

Overall, without more specific information, it is difficult to say precisely what the differences between Sussex 1 and Sussex 2 are.