Doom needed 4mb of free memory. If you had 4mb total, you had to create a boot disk. 8mb machines worked fine without a boot disk. I also, amazingly, remember

Doom needed 4mb of free memory. If you had 4mb total, you had to create a boot disk. 8mb machines worked fine without a boot disk. I also, amazingly, remember running some early version of Pagemaker on that machine. When I went to link text, I would click the mouse to start the process, go get a sandwich, watch some TV and come back 10 minutes later when it finished.