Introduction
Understanding how the RPD-95 memory is organized will help you use the partitioning information in this chapter.
Divisions of Memory
The RPD-95 memory can be thought of as having two main divisions: system memory and user memory.| System Memory |
| User Memory |
In typical calculator operations, you do not work directly with system memory.
Organization of User Memory
User memory consists of 7200 bytes and is divided (partitioned) into file space, program memory, and data registers. Each of the three divisions of user memory has a specific purpose.| File Space | Stores by programs and data in the form of named files (File operations are discussedd in the next chapter.) |
| Program Memory | Stores programs that you write |
| Data Registers | Stores numeric values and alpha messages |
The Default Partition
The first time you turn the calculator on, user memory is partitioned as 5200 bytes of file space, 1000 steps (1000 bytes) of program memory, and 125 data registers (1000 bytes).Although the default partitions are suitable for most situations, you may have applications that require changing the amount of memory allocated for each purpose.
Actions That Affect the Partitions
When you change the partitions, the newly selected partitions remain in effect and are changed only if you:- Repartition the memory.
- Use [ HELP ] as a keyboard command to set calculator defaults
- Execute [ HELP ] as a program instruction.
☚ Back