This minimum level of software and hardware is called the computer requirement. An information window will display the version number of the Operating System and the amount of RAM that your Macintosh possesses. The RAM will be listed as Built-in and Total Memory memory. Built-in memory is the physical amount of memory the computer possesses. When virtual memory is turned on the computer will be slower but will be able to run more programs or larger programs.
Some programs require that Virtual memory is always turned on.
Total Memory is the amount of Built-in plus Virtual memory. In the Memory window look for the Virtual Memory option it will be either On or Off. Do not rely upon the modem programs Open Transport PPP, RemoteAccess and FreePPP to tell you the speed of the modem. Refer to your computer and modem manuals for this information. The Data transmission speed is used for network connections through your modem.