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2. Virtual Storage Access Method - Wikipedia

   en.wikipedia.org/wiki/Virtual_storage_access_method

   Virtual Storage Access Method (VSAM) [1] is an IBM direct-access storage device (DASD) file storage access method, first used in the OS/VS1, OS/VS2 Release 1 (SVS) and Release 2 (MVS) operating systems, later used throughout the Multiple Virtual Storage (MVS) architecture and now in z/OS.

3. Support programs for OS/360 and successors - Wikipedia

   en.wikipedia.org/wiki/Support_programs_for_OS/...

   The SORT or MERGE statement defines the sort keys— the fields on which the data is to be sorted or merged. This statement identifies the position, length, and data type of each key. The RECORD statement describes the format and length of the records in the input file. Other statements allow the user to specify which records should be included ...

4. Data Facility Storage Management Subsystem (MVS) - Wikipedia

   en.wikipedia.org/wiki/Data_Facility_Storage...

   DFEF offers a new type of VSAM catalog, but had reliability problems that were only resolved in DFP. 5740-AM3 Sequential Access Method Extended (SAM-E) SAM-E improves the performance of BPAM, BSAM and QSAM on direct access storage devices. 5740-AM8 Access Method Services Cryptographic Option 5748-UT2 Offline 3800 Utility

5. Basic direct access method - Wikipedia

   en.wikipedia.org/wiki/Basic_direct_access_method

   Device addresses are eight byte fields in the form MBBCCHHR. All subfields are binary numbers. [5] M is the extent number for files with more than one extent (non-contiguous files). BB is zero. Previously this indicated the bin on an IBM 2321 Data Cell. CC is the absolute cylinder number on the device. HH is the track (head) number.

6. Direct-access storage device - Wikipedia

   en.wikipedia.org/wiki/Direct-access_storage_device

   The operating system uses a four byte relative track and record (TTR) for some access methods and for others an eight-byte extent-bin-cylinder-track-record block address, or MBBCCHHR, Channel programs address DASD using a six byte seek address (BBCCHH) and a five byte record identifier (CCHHR).

7. Entry-sequenced data set - Wikipedia

   en.wikipedia.org/wiki/Entry-sequenced_data_set

   An entry-sequenced data set (ESDS) is a type of data set used by IBM's VSAM computer data storage system. [1]: 5 Records are accessed based on their sequential order, that is, the order in which they were written to the file; which means that accessing a particular record involves searching all the records sequentially until it is located, or by using a relative physical address (Relative byte ...

8. NFL hot seat rankings: Which coaches are in most trouble ...

   www.aol.com/nfl-hot-seat-rankings-coaches...

   Several coaches are squarely on the NFL hot seat entering Week 18, with Mike McCarthy and Brian Daboll among those facing uncertain futures.

9. Data set (IBM mainframe) - Wikipedia

   en.wikipedia.org/wiki/Data_set_(IBM_mainframe)

   In the context of IBM mainframe computers in the S/360 line, a data set (IBM preferred) or dataset is a computer file having a record organization.Use of this term began with, e.g., DOS/360, OS/360, and is still used by their successors, including the current z/OS.