Commodore PET: 40K RAM with SoftROM

The Commodore PET was one of the first true PCs. The entry model PET 2001 in 1977 came with 8K of RAM. My own PET 3016 from 1979 came with 16K, which I upgraded a while ago to 32K of RAM. This lets us run a lot of software, even interactive fiction games, for example Planetfall and Zork by Infocom. However we can do better! Using the SoftROM expansion we can add an additional 8K of SRAM to our system, that can be used by the Infocom interpreter, or any other software that knows about it and is changed accordingly.

Black Amiga 500

Many a computer from the 1980s is today yellowed and brittle. The plastics age considerably over the decades. You can do some mitigation by retrobrighting with hydrogen peroxide. However for some machines you can even get replacement cases, and in some cases even brand new key caps for the keyboard. Today we will transform a beige Commodore A500 into a black beauty!