IBM 5110 User Manual page 82

After the command:
File Size
/
Number of Files to Format
/
/rtin g File Number
) MAR 1< :I.
~j
: 1 .
l~
is successfully completed, the tape is formatted as follows:
II
4
/
File 4 now contains
15K bytes of tape storage.
This file header now indicates the end of
the marked tape, and any data following
this file header is lost.
A formatted tape has the following characteristics:
• The files are of variable length from 1 K to 200K, in 1 K increments.
• The files can be randomly accessed; that is, you can read a file
without having to read the previous file. However, the data in the
files must be accessed sequentially.
• It can contain both workspace and data files.
• It can contain both APL and BASIC files.
Tape Concepts 77