*+ (Disk I/O)

*+ (DISK I/O)

This disk I/O control turns on space compression using the operating system standard technique for compressing blank-filled records (insuring accessibility to the data by other operating system compatible programs and utilities). This control affects all variables remaining in the list. In the examples below (both MS-DOS and Linux compliant tabbing), the difference between compressed and non-compressed data is shown:

Space compression turned off:

	1 2 3 4 5
Pos	12345678901234567890123456789012345678901234567890
ASCII	9743 Mary J. Smith 14 First St
HEX	3333222222246772422566762222222222233246777257
	97430000000E1290AE03D9480000000000014069234034

Space compression turned on:

	1 2 3 4 5
Pos	12345678901234567890123456789012345678901234567890
ASCII	9743_ Mary J. Smith_ 14 First St
HEX	333302224677242256676022233246777257
	97439000E1290AE03D948900014069234034

The second example only occupied 38 positions instead of 48 due to the use of space compression through the MS-DOS and Linux compliant `tab' character.