binary file
fname
lname
id -int
grade 1 2 and 3
at least 10 records
when file begins contains linklist that acts as an indx to records in file
open file as i/o file
linklist contains id, position of record in file
id is the key
creates linklist which serves as indx to bin file
createsw menu
menu containt 1 display keys 2 display records in id order 3 display records in name order 4 display record in avg oerder 5 add record 6 quit make sure everythign is cleaned up, files are closed, actually adds record to bin file
record contains name id grade 1 2 3 avg