Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In IBM mainframe operating systems, basic sequential access method (BSAM) is an access method to read and write data sets sequentially. BSAM is available on OS/360, OS/VS2, MVS, z/OS, and related high-end operating systems. BSAM is used both for devices that are naturally sequentia ...Täielik kirjeldus
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In IBM mainframe operating systems, basic sequential access method (BSAM) is an access method to read and write data sets sequentially. BSAM is available on OS/360, OS/VS2, MVS, z/OS, and related high-end operating systems. BSAM is used both for devices that are naturally sequential, such as punched card readers and printers, and for data on devices that could also be addressed directly, such as magnetic disks. BSAM offers device independence: to the extent possible, the same API calls are used for different devices.