Final answer:
Personal health records can be stored on a portable electronic device such as an external hard drive, allowing easy transportation and access to health information while ensuring its privacy.
Step-by-step explanation:
Personal health records can be stored on a portable electronic device which allows them to be portable. An example of a portable electronic device capable of storing personal health records is an external hard drive, which works by magnetically encoding information. This portability enables individuals to carry their health records with them easily and provides access to this critical information whenever necessary.
To ensure the privacy of electronic health records, measures are often taken to secure the data, as the sharing of digital records among health providers is a method proposed to improve the quality and reduce the cost of health care in the U.S.