README.md
Program name: IBM

Submitter: PW ROWLAND, CELANESE CORP., CHARLOTTE, NC, 704-554-2100

Function: Create, Read and Write IBM 3740 format compatable diskettes.

Language: FORTRAN V2.5 (should also be compatable with FOR PLUS or 77).

Operating System: RSX-11M, non-priviledged (should run on M+, IAS - uses
QIO's and RT with modifications).

Hardware Required: RX01 (RX02's not tested).

Description:
This program will allow the user to create, read and/or write IBM
Basic Exchange diskettes. The user can:
- initialize diskettes.
- transfer Files 11 files to Data Sets.
- transfer Data Sets to a Files 11 files.
- perform ASCII/EBCDIC or EBCDIC/ASCII code conversions.
- list Data Set Labels (directories).
- delete Labels.
A internal help function is included.
An IBM Basic Exchange diskette is single sided with 77 tracks and 26
sectors per track. Each sector is 128 bytes long. This has the same
diskette requirements as the RX01. A maximum of 19 labels (files) may
be contained on one diskette.

CAUTION: IBM often puts only one record in each sector. A Files 11
file most likely will string records together in a sector.
This program does not reblock (or deblock) records.

Instructions: Extract IBMBLD from the IBM.ULB;
LBR IBMBLD.CMD=IBM.ULB/EX:IBMBLD
Execute the command file;
@IBMBLD.
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