What information is on a college transcript ?

That varies from university to university. Academic info generally includes course names and numbers, semester (or quarter) taken, sometimes professor's name, grade, and grade points. Also cumulative gpa, any previous degrees awarded, when, and from where.

Personal info may have, besides name, high school graduated from, date of birth, home address, mailing address, sometimes soc sec # or visa #, parent, guardian, or spouse name.