A computer system that has an outer shape that is round in outer cross-section. The computer housing can be formed of first and second housing parts that are each round in outer cross-section where one unscrews relative to another like taking the lid off a jar. The inside of the housing can store various kinds of nonvolatile memory and a processor. The user's entire processing environment may be stored within the memory and processor, and part of that environment may include stylesheet that represents specific styles of the user.