Now that PC technology has matured, vendors focus on low power consumption, noise reduction, etc. In particular, noise reduction has become the recent design focus for IT products. Industrial computers are following the same trend.
If one makes long-term observations of end-user demands across a number of products, one can see a similar evolution. At first, consumers seek only to possess a product, then they demand performance; once the technology has matured to a certain level, they begin to pay attention to the details. The IT industry is a perfect example. When the PC first came out, promotion was the primary goal; after the PC became popular, its specifications and performance quickly began to improve.