PCem

PCem is one of the most advanced classic computer emulators on the market. It's compatible with dozens of classic computers from the 80s and 90s.

To emulate these systems, it's necessary to have the appropriate ROMs for each one. These ROMs are not officially offered by the emulator developers, so you'll have to find them on your own. On the Internet, you can find complete packs that allow you to emulate all the systems that PCem is compatible with.

After adding the ROM you want to the corresponding folder, just go to the program. There, you can start the system emulation. You can adjust a wide range of parameters for the emulation, including the processor, RAM memory, graphics card, network card, mouse, sound card, and screen.

After starting it, you can install the appropriate operating system. This step is key, since the ROM only provides a virtual environment on which to run software, just like a fully assembled physical computer that's still without an operating system. After adding the required operating system, you can emulate all kinds of software without any problems, including old programs and games.

So, if you need to emulate software from decades ago, downloading PCem is an excellent option to do so.