- Whether it's one-on-one training to how to operate your hand held PDA....PC Focus has the knowledge, technology, and the reputation to assist you! Call us now!!! Computer Training & Development Greenfield Corporate Center 1860 Charter Lane, Suite 207 Lancaster, PA 17601 Phone 717. 396.9881 Fax 717. 396.9382 ABOUT US CONTACT US DIRECTIONS EMPLOYMENT This site is not associated with Information ...www.pcfocus.com