Final answer:
Flash ROM is the kind of memory that typically resides on a PDA. It is non-volatile and allows for easy storage and access of information.
Step-by-step explanation:
The kind of memory that typically resides on a PDA (Personal Digital Assistant) is Flash ROM. Flash ROM stands for Read-Only Memory, which means that the data stored on it can only be read and not written or modified. This type of memory is non-volatile, meaning that it retains information even when the power is turned off.
Flash ROM is commonly used in PDAs because it allows for easy and convenient storage of the operating system, applications, and user data. It provides quick access to stored information and is resistant to data loss.