Question

question 9 (1 point)
personal digital assistants most commonly use which of these technologies?

1. optical scanning
2. pen - based computing
3. jump drives
4. back - lit keyboards

Explanation:

Personal digital assistants (PDAs) historically and commonly used pen - based computing. Optical scanning is more for document scanning, jump drives are for data storage/transfer, and back - lit keyboards are for visibility in low - light, not a defining tech for PDAs.

Answer:

1. Pen - based computing