Perfect Filer, from Perfect Software, Inc, is an easy to use database for DOS bundled with a number of early DOS and CP/M computers.
"Perfect Filer is designed to assist you in the effective management of information.
Essentially Perfect Filer allows you to build a computerized records management
system where data on clients, customers or other case records can be stored .
No more typing and retyping the same information, searching through file
drawers, or hand copying or typing information stored in a file . With Perfect Filer
your computer can do these tasks and more . You enter information in the file only
once, Perfect Filer retrieves it, prints it where and how you want it-on invoices,
shipping labels, monthly statements, form letters, etc . Perfect Filer's uses in the
modern office are unlimited."