"what are two elements found in an email address? "

The part before the '@' symbol identifies the name of a mailbox, the username of the recipient.

The part after the '@' symbol is a domain name that represents the administrative realm for the mail box

example. [email protected]

helset is username

'abc.com' is administrative realm of the mail box

professionals can use many types of technology that can them. some examples are, computers (they research and can use for programs for data, they are also used for job applications, school work, and even to make new ideas), speedometers (can get data for unknown data), sometimes something as small as a pen (used for rough drafts, to insert data, and again job applications).