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### 2.1 Before Installation : Requirements

#### System requirements

The compiler needs at least the following hardware:

1. An Intel 80386 or higher processor (for the intel version). A coprocessor is not required, although it will slow down your program’s performance if you do floating point calculations without a coprocessor, since emulation will be used.
2. 4 Megabytes of free memory.
3. At least 3 Megabytes free disk space.

#### Software requirements

##### Under DOS

The D O S distribution contains all the files you need to run the compiler and compile pascal programs.

##### Under UNIX

Under U N I X systems (such as L I N U X) you need to have the following programs installed :

1. G N U as, the G N U assembler.
2. G N U ld, the G N U linker.
3. Optionally (but highly recommended) : G N U make. For easy recompiling of the compiler and Run-Time Library, this is needed.

##### Under Windows

The WI N D O W S distribution contains all the files you need to run the compiler and compile pascal programs. However, it may be a good idea to install the mingw32 tools or the cygwin development tools. Links to both of these tools can be found on http://www.freepascal.org

##### Under OS/2

While the Free Pascal distribution comes with all necessary tools, it is a good idea to install the EMX extender in order to compile and run programs with the Free Pascal compiler. The EMX extender can be found on:
http://www.leo.org/pub/comp/os/os2/leo/gnu/emx+gcc/index.htm

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