* A vast new demand is growing for database services which will organise,
 collect and sell data

* quiz on some concepts of past class

* what are some of the bulk data storage media, often used as back-ups?

Magnetic tapes

CDROMs ----> 700 MBs

DVDs ----- > 10-15 GBs

Commercially marketable DVDs with capacities of 40GBs and above likely to 
hit market soon.

Flash memories


* Trade-offs in designing of databases
 
Storage utilisation vs time utilization

Response time vs Complexity of data structure

Design which facilitates unanticipated inquiries vs design for well-defined
 operational requirements


File systems vs DBMS systems

Normally DBMS is allocated some seperate area within the File system to store
 and manage its data efficiently. The primary goal of file
 systems still remains the same i.e, in the maze of files that populate
 the machine i.e, computer, file systems primarily assists in locating 
 where the files are stored in the system quickly.