Ronald & Lynn Marcuse

                                  DISKETTE LIBRARIAN

                                       APX-20056

                                        










                                       CONTENTS

INTRODUCTION..................................................  1
 
      Overview................................................  1
      Required accessories....................................  1 
      Optional accessories....................................  1 
      Terms used in this manual...............................  2

GETTING STARTED...............................................  3
 
      Setting up..............................................  3 
      Sample session..........................................  4
      Preliminary work........................................  5 

          Volume number.......................................  5
          Maximum lengths for other fields....................  5 

USING THE DISKETTE LIBRARIAN..................................  7
 
      Introduction............................................  7
      Entering data, selecting options, and answering prompts.  7 
      Diskette write protect feature..........................  7
      Option 1--AUTO-CATALOG..................................  8 
      Option 2--LIST DIRECTORY................................  9 
      Option 3--ADD DISK-NON DOS..............................  9 
      Option 4--INQUIRY/LIST.................................. 10 
      Option 5--UPDATE RECORD................................. 11 
      Option 6--SORT LIBRARY.................................. 12 
      Option 7--RUN PROGRAM................................... 12 
      Option 8--END SESSION................................... 12

ADVANCED TECHNICAL INFORMATION................................ 13 

      System elements and design.............................. 13
      Increasing file storage or volume of data............... 13
      Creating additional DISKETTE LIBRARIAN diskettes........ 13 
      Modifying the display screen margins.................... 14



















                              LIST OF FIGURES

Figure

1  CATALOG OPTIONS Menu.......................................  3
2  INQY/LIST Search Key Submenu...............................  4 
3  INQY/LIST LIST Output Submenu..............................  4
4  INQY/LIST LIST Display Screen..............................  5 
5  Insert Disk Prompt.........................................  8
6  Insert DISKETTE LIBRARIAN Diskette Prompt..................  8 
7  Option 1 (ADD) Data Entry Format...........................  8
8  UPDATE Search Key Prompt................................... 1l 
9  UPDATE Display Screen...................................... 11









































                                    


                                     INTRODUCTION

OVERVIEW

With the DISKETTE LIBRARIAN you can generate a detailed program library catalog You 
don't need programming experience to use this system.  You use the catalog through a 
series of menu selections and prompts for information.  Several key functions are 
automatic in that you need only insert a disk to perform the function.  These functions 
include posting additions or updates to the catalog for new or existing diskettes, 
creating a "label" to identify a diskette to the system and automatically running most of 
your cataloged programs from the library. Besides the standard data system functions of 
searching, adding, updating, and deleting information and records, other functions you 
can perform include sorting the library on any key, printing a program catalog, and 
browsing through the catalog.  DISKETTE LIBRARIAN keeps track of the following data! 

      1. Volume number of disk (or tape)
      2. Program or file name
      3. Description of program or file 
      4. Type of program or file
      5. Source 
      6. Date
      7. Number of disk sectors (or tape counter) 

REQUIRED ACCESSORIES
      24K RAM
      ATARI 810 Disk Drive
      ATARI BASIC Language Cartridge
 
OPTIONAL ACCESSORIES
      ATARI 825 8O-Column Printer or Epson MX-80 Printer 






















                                          -1-


                                             



TERMS USED IN THIS MANUAL

Before discussing in detail how to use the DISKETTE LIBRARIAN, let's go over several 
terms used in this manual.  The program library (or catalog) is a file composed of 
records. Each record is made up of a set of data fields.  Each field can also be a
search key, which you can use as part of a search statement to locate records. You may 
search with a complete or a partial key (field) value.  Your fields also have labels 
preceding field values in the displayed or printed records. In addition, the system 
assigns every field a number.

To illustrate each term, we'll use the sample program catalog already on your diskette. 
This file has seven fields (1) volume number, (Z) file name, (3) description, (4) type, 
(5) source of program, (6) date, and (7) number of sectors. One record holds the
following information: (1) D000 (2) PROGLIB.DB  (3) PROG LIBRARY FILE  (4) DATA  (5) PROGLIB  (6) 050181  (7) 003.

Working definitions of the underlined terms are as follows:

   FILE--a set of records having the same attributes. In our example, the file is the 
   program catalog itself.

   RECORD--one set of fields containing all the information about one entity. In the 
   library file, one record contains the information about the entry for the file names 
   PROGLIB.DB on volume number D000.

   FIELD--one kind of information within a record. In the library file, volume number 
   is one field, file name is another field, and so on.

   FIELD NUMBER--the order of a field within the set of fields comprising a record. In 
   the library file, volume number is field 1.

   SEARCH KEY--a field by which the system locates records in response to a search 
   statement. In the library file, we can search on any of the seven fields--volume 
   number, file name, description, and so on.
















                                          -2-


                                  GETTING STARTED

SETTING UP

1. Insert the ATARI BASIC Language Cartridge in the (Left Cartridge) slot of your 
computer.

2. Turn on your disk drive.

3. When the BUSY light goes out, open the disk drive door and insert the DISKETTE 
LIBRARIAN diskette with the label in the lower right-hand corner nearest to you. 
(Insert it in disk drive one if you have more than one drive.)

4. Turn on your computer and your TV set.

5. If you're planning to use your printer, turn it and the ATARI 850 Interface Module on.

6. At the READY prompt, type RUN "D:PROGLIB" and press the RETURN key. The system loads
in 10 to 12 seconds and the CATALOG OPTIONS menu then displays:

        ATARI PROGRAM LIBRARY 
     
           CATALOG OPTIONS

1 AUTO-CATALOG	 5 UPDATE RECORD 
2 LIST DIRECTORY   6 SORT LIBRARY
3 ADD (NON DOS)	 7 RUN PROGRAM
4 INQUIRY/LIST	 8 END SESSION 

SELECT OPTION ==>__

      Figure 1 Catalog Options 

You're now in the DISKETTE LIBRARIAN and ready to work.




















                                          -3-


SAMPLE SESSION

Let's go through a simple session of the DISKETTE LIBRARIAN to give you an idea of how 
easy it is to use.  We'll use the catalog file already on this diskette to inquire into
the catalog file and list all records located on volume number D000.

First, we select option 4,INQUIRY/LIST, of the CATALOG OPTIONS menu by pressing the 
numeric 2 key. The system displays the INQY/LIST submenu:

       ATARI PROGRAM LIBRARY - INQY/LIST

   KEY:
       1 VOL #
       2 FILE ID 
       3 DESCRIP 
       4 TYPE 
       5 SOURCE
       6 DATE 
       7 SECTORS 
       8 ALL RECORDS
       E END

   SELECT OPTION ==>__

   Figure 2 INQY/LIST Submenu

(Note. In this and other menus, the END option returns you to the next higher level of 
activity.  In this case, if we select option E, we return to the CATALOG OPTIONS menu.)  
We 
want to search the catalog to find all the programs on diskette number D000 (the 
recommended volume number structure is explained in the section titled "Preliminary 
Work").  Therefore, our search key is 1, VOL #, and we press key number 1 to specify this 
key for searching the file. The system then displays the following prompt:

   ENTER VALUE?

We enter the volume number (D000 in this case) and press the RETURN key. The system then 
displays the following submenu for us to select our preferred output mode:
   
OUTPUT:    1. INQUIRY 
           2. BROWSE 
           3. LISTING

   SELECT OPTION ==>__

   Figure 3 INQY/LIST Output Submenu

For the sample session, we'll select option 1, INQUIRY, by pressing the 1 key. The system 
then searches through the library file and displays the first record satisfying our
search criterion 0000 in this case).  The display looks as follows:




                                          -4-


      1 VOL 	D000
      2 FILE ID	AUTORUN.SYS
      3 DESCRIP	PROGLIB MACHINE SORT
      4 TYPE	PROCESS
      5 SOURCE	APX
      6 DATE      080181
      7 SECTORS	001
     
      (E=END) OR PRESS ANY KEY TO CONTINUE 

       Figure 4 INQY/LIST Display Screen 

We can continue the search based on volume number D000 by pressing any key other than E, 
or we can end our search by typing E.

This completes the sample session. After a brief discussion of some preliminary decisions 
you need to make before setting up your own catalog, we'll turn to examining the various 
activities possible in the DISKETTE LIBRARIAN.

PRELIMINARY WORK

The DISKETTE LIBRARIAN is very easy to use and the computer will do many things for you. 
But you do need to make a few decisions before setting up your library.

Volume number
The volume number is one of the principal fields in the records. Besides letting you file 
your diskettes in some logical order, it is also the basis for an internal label the 
program writes to the diskette. For the latter reason, any diskette you catalog must have 
a free sector (the label requires only one sector). If you have a diskette with no free 
sectors, move one of its files to a less crowded diskette. For purposes of cataloging, 
you must also remove the write protect tape from the notch before inserting the diskette 
into your disk drive.

A second feature of the volume number is that the system assumes different media for 
different initial letters. Those starting with the character "C" are tape files (i.e., 
D001 - D009).  The system takes this initial letter into account during option 7, RUN 
PROGRAM. Use the character "D" as the initial volume letter for your diskette-based files 
(D001 - D999).  (Don't use D000, since the DISKETTE LIBRARIAN diskette uses this value.) 
Use the character "X" as the initial letter for program cartridges you want to catalog. 

Maximum lengths for other fields
The other fields that you directly control--DESCRIPTION, TYPE, SOURCE and DATE--each have 
maximum lengths.  These are:

DESCRIPTION - 22 
TYPE - 7
SOURCE - 7 
DATA - 6
                                 





                                           -5-



The information you type in when prompted can be no longer than these maximum lengths. 

For the TYPE and SOURCE fields, analyze your requirements and assign values enabling you 
to construct an organized catalog. For TYPE, examples would be "GAME" for all of your 
games, "BATA" for your data files, and so on. For SOURCE you can assign "COMPUTE" for 
programs typed in from that magazine, "ATARI" for their software, and the program name 
for data files processed by a particular program (e.g., the Program Library file has for
its source "PROGLIB").













































                                          -6-


                              USING THE DISKETTE LIBRARIAN

INTRODUCTION

The CATALOG OPTIONS MENU illustrated in Figure I shows the eight major functions of the 
system. Option 1 (AUTO-CATALOG) lets you automatically catalog or update catalog entries 
for a DOS diskette. Option 2 (LIST DIRECTORY) displays the DOS directory of the diskette 
located in disk drive 1. Option 3 (ADD - NON DOS) lets you manually add any program or 
file not located on a diskette with a DOS directory, Option 4 (INQY/LIST) lets you search 
and/or print records from the library file. Option 5 (UPDATE) lets you update the various 
fields located in a record. Option 6 (SORT) lets you resequence the entire file on any of
the seven fields. Option 7 (RUN PROGRAM) lets you execute any program that has been 
stored in SAVE format. Option 8 (END SESSION) terminates your work in the DISKETTE 
LIBRARIAN and returns you to BASIC.

For system integrity, the BREAK key has been disabled, 

                              ****CAUTIONS****

AVOID USING THE SYSTEM RESET KEY. USING IT AT THE WRONG TIME MAY 
DESTROY YOUR CATALOG FILE.

DO NOT USE THE AUTO-CATALOG OPTIONS ON NON-DOS DISKS. 

ENTERING DATA, SELECTING OPTIONS, AND ANSWERING PROMPTS
When you enter letters in response to system prompts, use only uppercase letters. The 
computer doesn't interpret uppercase and lowercase variations of the same letter 
identically, When you enter field values for various activities (e.g., to add or update 
records or to enter a search value), you'll need to press the RETURN key to signal 
completion of your input. All other input consists of entering numbers or letters in 
response to prompts, For example, you enter a 1 through 8 to select an option from the 
CATALOG OPTIONS menu and you enter a Y in response to a prompt asking whether you want a 
record updated, In these cases, pressing the RETURN key isn't necessary.  In some cases, 
when you answer a prompt by simply pressing the RETURN key without first entering a
value, you automatically return to the next higher level of activity. In other cases, the 
system won't accept your pressing the RETURN key without first entering something else, 
In these instances, either you'll see an ERROR message in inverse video or the prompt
will display again, and the system will patiently wait for you to enter a value. 

DISKETTE WRITE PROTECT FEATURE
Because the DISKETTE LIBRARIAN uses both input and output record processing, you must 
leave uncovered the hardware write protect notch on the diskette.












                                           -7-


OPTION 1 -- AUTO-CATALOG

Use option 1 to add the file names for a new diskette to the library or to update the 
entries for a previously cataloged diskette. After you press the 1 key, the system 
displays the following prompt:
      
      INSERT DISK TO BE CATALOGED 
      PRESS ANY KEY TO CONTINUE 

      Figure 5  Insert Disk Prompt

Insert the diskette to be cataloged in drive 1 and press any key. If the diskette has not 
been cataloged before, the system displays this prompt:

ENTER DISK # (Dnnn)
where "Dnnn" represents a diskette volume number. Type in the volume number of the 
diskette (see the section "Preliminary Work" far a discussion of volume numbers) and 
press the RETURN key. If you press RETURN without entering a number, you'll return to the 
CATALOG OPTIONS menu.

Once the program assigns a volume number to the diskette (note that it will be written to 
the diskette as an internal label) the system displays this prompt:

FILES FOUND= nnn, FREESPACE= nnn 
DISK IS # Dnnn,
INSERT D:PROGLIB.DB
PRESS ANY KEY TO CONTINUE

Figure 6 Insert DISKETTE LIBRARIAN Diskette Prompt 

where the first "nnn" in line one represent the number of files found, the second "nnn" 
represents the number of free sectors remaining on the diskette, and "Dnnn" in line two
represents a diskette volume number. Insert the DISKETTE LIBRARIAN diskette and press any 
key. The system then compares the diskette directory to the Program Library file based on
the volume number and program (file) name. For new files located on the diskette, the 
system prompts you for the DESCRIPTION, TYPE, SOURCE and DATE. The format of these 
displays looks like this (where "Mile name>" is the name you assign this file):

TO ADD   <file name>      ENTER: 
[ --------------------- ]  DESCRIP 
?
[-------]      TYPE
?
[-------]      SOURCE
?
[-------]      DATE 
?

Figure 7 Option 1 (ADD) Data Entry Format

For each field, type in the applicable data and press the RETURN key. The length of each 



                                        -8-


field is indicated graphically by the dashed line.  After you complete your data entry, 
the system displays the entire record (see Figure 4) followed by the prompt:

      TYPE Y IF OK?

Press the Y key to add the record to the catalog file, Press any other key to return to 
the beginning of the data entry prompts for a second try (and to abort the work you did 
to this point),

The system repeats this procedure for each new file or program on the diskette. The
system won't add the file names DOS.SYS, DUP.SYS, MEM.SAV and DISK.CAT to the program 
library file, This function works only for diskettes formatted by DOS I or DOS II, Don't 
use this option for other diskettes or for cassettes or cartridges (see option 3, ADD - 
NON DOS, for the proper way to add such files),

The system also deletes entries in the program catalog file when the diskette directory 
no longer contains the file name, The files being deleted will be accompanied by a 
deletion message appearing on the screen:
      <file name>, DELETED ON  Dnnn
where "<filename>" is the name of the removed file and "Dnnn" is the diskette volume
number on which it resided. The SECTOR field will be updated on the program library file 
for all directory entries that have been successfully matched to the file,

When the system completes the AUTO-CATALOG procedure, you return automatically to the 
CATALOG OPTIONS menu,

OPTION 2 -- LIST DIRECTORY

 	Use option 2 to query and display the directory for the diskette resident in drive 

1. The format of the display is similar to the DOS directory function, but the following 
information is appended:

      FILES FOUND= nnn,	 FREESPACE=nnn 
      PRESS ANY KEY TO CONTINUE

where "nnn" represents the number of files cataloged on the diskette and "nnn" represents 
the number of free sectors on the diskette. By pressing any key, you return to the
CATALOG OPTIONS menu (see Figure 1)

OPTION 3 -- ADD - NON DOS
Use this option to add non-DOS entries to the catalog file. Non-DOS entries can include 
cassette tapes and program cartridges as well as diskettes formatted with no DOS 
directory. Because these storage media have no provision for file names, the file name 
field is for your information only. In addition, the SECTOR field has meaning only for 
cassette files, where the DISKETTE LIBRARIAN lets you store' the starting position of the 
tape counter, This field is especially significant for option 7, RUN PROGRAM, Cassette 
files must have a volume number beginning with the character "C" (C001 - C999).






                                          -9-


The procedure for adding entries to the file is similar to option 1 above (see Figure
7), but with additional prompts far entering the VOLUME *, PROG/FILE ID and SECTOR 
fields, When you complete the data entry, you return automatically to the CATALOG OPTIONS 
MENU.

OPTION 4 -- INQUIRY/LIST

Use option 4 to locate entries in your program library and to print a library catalog.
Pressing the 4 key in response to the CATALOG OPTIONS menu causes the INQY/LIST search 
key submenu to display (see Figure 2). You can now search the catalog on any key (respond
to the submenu items by pressing the appropriate numeric key). Or, you can see the entire 
file by pressing the 8 key. Typing an E returns you to the CATALOG OPTIONS menu.
If you search the file on a key, for example, on TYPE, the system then prompts you to 
enter the value for your search key:

      ENTER VALUE?

Enter a search value the system can use to locate matching records, To extract all your 
files of the type "game", for example, you could enter

      GAME

for the search value, Press the RETURN key after entering the value. You can use a 
truncated search key to locate records fitting a general class, such as D02 to extract 
all volume numbers between D020 and D029,

Next, you select the output format for your records. The system displays the OUTPUT 
submenu (see Figure 3), In this submenu, INQUIRY displays one complete record at a time 
on your TV screen, Press any key to page through the records or press E to return to the 
CATALOG OPTIONS menu. BROWSE displays the volume numbers, program/file names, and 
descriptions of the first 19 records meeting your search statement. After your TV screen 
has filled, the system prompts you to press any key to continue the display. LISTING 
causes the system to print the complete record(s) on your 80-column printer. Make sure 
your printer is attached to your interface module, the printer and module are turned on, 
and the printer is in ONLINE mode, If the system can't send output to the printer, it 
displays a CHECK PRINTER ERROR 138 message,

After the system displays all records meeting your search statement, it returns you to 
the CATALOG OPTIONS menu.

 













                                          -10-


OPTION 5 -- UPDATE

Use option 5 to modify fields in a catalog record or to delete whole records (Note.
Option 1, AUTO-CATALOG, does these functions automatically if your added or-deleted files 
are on a diskette). When you press the 5 key, the RECORD UPDATE prompt displays to 
formulate your search key requirement:

ATARI PROGRAM LIBRARY - RECORD UPDATE
   KEY:
      1 VOL #
      2 FILE ID 
      3 DESCRIP 
      4 TYPE
      5 SOURCE 
      6 DATE
      7 SECTORS
      8 ALL RECORDS 
      E END
   SELECT OPTION ==>

Figure 8  UPDATE SEARCH KEY Prompt

Create your search statement by working through the same prompts as in option 4. The	 
system then displays a record meeting your search criteria and prompts you for 
updating/deleting:

      1 VOL	      D000
      2 FILE ID	PROGLIB
      3 DESCRIP	ATARI PROGRAM LIBRARY
      4 TYPE	PROCESS
      5 SOURCE	APX
      6 DATE	080181
      7 SECTORS	062

   TYPE FIELD # TO UPDATE, D TO DELETE 
   PRESS ANY KEY TO CONTINUE

Figure 9 UPDATE Display Screen

Enter the number of the field for which you want to change the value. For example, to
change TYPE from PROCESS to DATA, press the 4 key. The system displays the field name and 
maximum length reminder, You then enter the revised value and press the RETURN key. The 
system redisplays the record with the same prompt, allowing you to make further
revisions. When you're satisfied with the updated record, press any key but D or a field 
number.

The system then displays the next record meeting your search statement, if any. 
Otherwise, it displays the number of records it located that met your search statement 
and returns you to the CATALOG OPTIONS menu.

To remove a record from the program library, type D when the record is displayed. 



                                          -11-


OPTION 6 -- SORT

Use option 6 to reorder the records in your catalog before searching and displaying--that 
is, if you prefer an order different from the records' current one. (Note, If you
didn't turn on your disk drive and the computer with the DISKETTE LIBRARIAN diskette 
inserted in drive one, the computer will lock during this operation. At this point,
you'll need to turn the computer off and then on again to proceed. Records added before 
executing the sort option will already be saved on the diskette.)

When you press the 6 key, the system prompts you for the sort key (i.e., the field) in 
the same way it prompts for a search key in options 4 and 3. You then type a Y in 
response to the system prompt:
      
   TYPE Y TO SORT ON FIELD #n

where "n" is the field number you typed in. Several messages display as the system loads 
the sort program, compresses, sorts and saves your library on the diskette. The system 
automatically reloads the main DISKETTE LIBRARIAN program. (Technical note. The sort 
program deletes records that the system flagged for deletion in the record delimiter 
byte.)

If you press any other key in response to the prompt, you'll abort the sort and return to 
the CATALOG OPTIONS menu.

OPTION 7 -- RUN PROGRAM

Use the RUN PROGRAM option to RUN any program that you have stored in SAVE format 
(rather than in LIST format). The system prompts you for the file name:

   ENTER PROG/FILE ID ==> ?

Type in your file ID and press the RETURN key. The system will locate the program in the 
catalog and prompt you to insert a particular diskette into drive one or insert a
cassette tape into the program recorder. Press ADVANCE on the tape recorder to position 
the tape at the counter number the system requests. Then type Y in response to the prompt 
displayed on your TV screen to RUN this program, If you don't type a Y or if you didn't 
enter a program ID in response to the first prompt, you return to the CATALOG OPTIONS 
menu. If the program isn't on the disk you insert or if an error occurs on the recorder,
an appropriate error message displays. For recorder errors, the DISKETTE LIBRARIAN 
attempts to reload itself from drive one.

OPTION 8 -- END SESSION

Use this option to terminate your session in the DISKETTE LIBRARIAN and return to BASIC. 










                                          -12-


                           ADVANCED TECHNICAL INFORMATION 

SYSTEM ELEMENTS AND DESIGN
The DISKETTE LIBRARIAN comprises three programs'# PROGLIB, PROGSORT
and AUTORUN.SYS.  PROGLIB is the main library program.  PROGSORT is a short BASIC program 
used to read the entire file into RAM.  Control then passes to AUTORUN.SYS, a high-speed 
machine language "bubble sort".

The program library or catalog file consists of 62-byte records (the 62nd character is a 
"delimiter" or "delete" byte) and is named PROGLIB.DB. Two key concepts drive the system. 
The first involves the DOS directory and its treatment as a file to be matched to the 
program library file. Additions and deletions to the catalog are noted during the
process. The second involves the assignment of a volume number to each diskette cataloged 
by the system. The volume number is written to the diskette for future use as an
"internal label". When a cataloged diskette is reintroduced, the system locates this 
volume number and proceeds from there.

The sort program, called by the main program, is not normally resident in RAM. This 
technique allows the dimensioning of the large string necessary to sort the file. The 
variables controlling the sort program are poked into safe locations while still under 
control of the main program.

INCREASING FILE STORAGE OR VOLUME OF DATA
The number of records and/or the volume of data you can store on one diskette depends on 
several factors. After subtracting the space used by the Disk Operating System (DOS) and
the DISKETTE LIBRARIAN, more than 550 unused sectors remain for the DISKETTE LIBRARIAN 
file. This amount of space can a accommodate more than 1100 catalog records. You can also 
delete the DUP.SYS filespec from this diskette, effectively increasing the number of
sectors available to 590. But remember that you won't be able load the full version of 
DOS with these diskettes.

CREATING ADDITIONAL DISKETTE LIBRARIAN DISKETTES
You can create other DISKETTE LIBRARIAN diskettes by following this procedure:
      1. Load the DISKETTE LIBRARIAN diskette into RAM as described in the GETTING 
STARTED 
      section under the subsection "Setting Up".
      2. When the READY prompt displays, type DOS and press the RETURN key. This version 
      of ATARI'S DOS (DOS II) loads in about 20 seconds.
      3. When the DOS menu displays, insert the new diskette and type I for option I 
      (FORMAT DISKETTE) to erase any previous data on the diskette and format it.
      4. When the DOS menu redisplays, type H for option H (WRITE DOS FILE) to write the 
      DOS files to this blank, formatted diskette.

  










                                          -13-


Because DOS I (9/24/79) and DOS II are not compatible, you must follow this 
procedure with DOS II loaded in your computer, not DOS I.  In addition, make sure you 
don't format the DISKETTE LIBRARIAN diskette (if you do, DOS will erase all of the 
DISKETTE LIBRARIAN files).

5. Finally, use option 0 (DUPLICATE FILE) to copy the files needed to run DISKETTE 
LIBRARIAN. The files are: AUTORUN.SYS, PROGSORT, and PROGLIB.
You can also follow these steps to create backup copies of your library file. Just 
substitute the file name PROGLIB.DB during the copy process. Because no computer or 
storage mechanism is foolproof, backing up your files is strongly recommended. 

MODIFYING THE DISPLAY SCREEN MARGINS

The DISKETTE LIBRARIAN uses a full 40-column line on your TV screen.  This length
presents no problem if your screen is correctly balanced. If it isn't, however, the system will use a standard 38-column line if you delete the first line of the program code, which contains a POKE statement adjusting the margins to 40 columns.  You need do this once and the program will thereafter use a 38-column display line (the extra two character maximum lines will "wrap" to the next line).

To make this modification, load the program into computer memory (RAM) as follows. First, 
clear out RAM by typing the direct mode NEW command. Then, type the command:

LOAD "D:PROGLIB"

and press the RETURN key. When the program has loaded and the READY prompt displays, type 
a 1 and press the RETURN key.  This erases line one from the program code.  You'll then
want to store this revised version back on diskette by typing the command' 

SAVE "D:PROGLIB"























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