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Chapter 3

USING THE SATURN 64K AND 128K BOARDS

Procedures for using the Saturn 64K and 128K RAM boards are

described in this chapter, with particular emphasis being given

to the operation of the card with APPLESOFT and INTEGER BASIC

under DOS DOS 3.3.

As indicated in the introduction to this manual, the Saturn

64K and 128K RAM boards have been designed to be compatible with

existing software which runs on Apple’s Language card and other

manufacturers 16K memory boards. Compatibility is maintained

because the first bank of 16K on each of these cards is accessed

in the same manner as the language card, and therefore appears as

such to the software.

In most instances, the operation of the memory boards is

transparent to the user, i.e., when the particular software

system being used is booted, this software recognizes the first

16K of the memory board and uses it automatically.(Provided that

the memory board is in slot 0.) Much of this software is only

provided on 16 sector disk (DOS 3.3), for example Apple FORTRAN,

PASCAL, CPM56 (for upgrading CP/M systems to take advantage of

the memory board), and thus requires a 16 sector system (DOS 3.3)

for operation. Where use of this software is required, upgrading

to a 16 sector system is recommended.

Examples of software which will use this first 16K of the

Saturn 64K and 128K RAM Boards, when in slot 0, are given below:

Personal Software’s VisiCalc CP/M

Apple’s PASCAL Microsoft’s FORTRAN—80

Apple’s FORTRAN Microsoft’s COBOL—80

Integer BASIC etc.

Applesoft BASIC

For further details concerning booting these systems and

operating them, consult the respective instruction manuals.

I. USE WITH APPLESOFT AND INTEGER BASIC

One of the features which is available with the Saturn 64K

and 128K RAM Boards is the ability to have Applesoft or Integer

BASIC present in the Ram Board and access these in a similar

manner as one does using an Apple Firmware card (Integer card or

Applesoft card).

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Apple Logic Board Informations techniques Page 10