What are 5 commonly used Access methods?
(1) QSAM (Queued Sequential Acces Method) (heavy used)
(2) BSAM (Basic Sequential Access Method (for special cases)
(3) Basic Direct Acces Method (becoming obsoluete)
(4) BPAM (Basic Partitioned Acces Method) (for libraries)
(5) VSAM (Virtual Storage Access Method (used for more complex applications)