ROM, and Hard Drive space began to expand astronomically with the switch I had to abandon the current versions of software I was using. Along with my Printer. 2) with the switch to RISC from CISC processors the need for Memory RAM, This was first machine that ran what was the forerunner of OSX (started out as OX.7.5. That looked like an office desk with a window to view the Monitor. It used System RAM up to 4 MB. My next system was a Mac 7100/66 using a Motorola RISC Processor whose processor originated in those Computer work stations.Also was the first series to use a Hard drive 10 MB at the time. Cost me Several Thousand Dollars even with education discount. Patch that cleaned up the ROM's and allowed the use of 2MB of system RAM. I started off with a Mac SE/30 which used cutting edge version of the Motorola 68030 Processor came with 1 MB of Memory and used what the was called Dirty ROMS which limited system RAM to a Maximum of 1 MB of system RAM.You know That they tend to write software for the age they are in at the moment. But apple needs some shared blame as well. As they change OS Apple is more cutting edge and if you've been a long time Mac user.