As a software-only solution, you can re-load the Zymed Holter software on another Pentium computer and start scanning again in minutes. Should you decide to upgrade for better computer performance in the future, you can do so at any time by reloading the software. Some competitors offer you a “free” computer with the purchase of their system. The real cost of that “free” computer shows up in high yearly service contracts or service calls billed at time and materials after the one-year warranty expires.