The personal laptop computer is a product that has proven to be highly reliable in spite of the fact that it has many interfaces, is operated by a variety of people, operates nearly continuously, and includes a number of internal moving parts (e.g., CD/DVD drive, hard drive). It is a portable device that operates in a wide range of environments (temperature, shock, vibration, etc.). List six design features or characteristics that contribute to the laptop reliability. For each item in your list, estimate the contributions this item has on the overall computer cost. A ranking of high, medium, and low is sufficient.