Comment Re:Contemporary PC capabilites - not 1985 PCs (Score 1) 118
It's possible to do everything you mentioned, but reality was different in 1985. Minimum hardware requirements for most games was still an 8088 PC @ 4.77Mhz (mediocre performance, 8-bit bus), and the slower IBM PCjr (no DMA chip to do RAM refresh). 286 PCs weren't yet cheap, and the new 386 CPU was super expensive (it was a huge improvement over the 80286).
I think most PCjr games used stock 160x200x16 resolution (320x200x16 required extra RAM). Tandy 1000 users sadly got same PCjr graphics, 16-color CGA (TV/composite) effective resolution is still 160x200. On digital monitors, CGA was 320x200x4 (using ugliest color presets in the galaxy), 320x200x2 or 640x200x2.
EGA cards were initially expensive, hi-rez required VRAM upgrade and pricier monitors. Also, EGA 64-color palette made PC games look like NES, while Amiga games looked like Sega Genesis with their 4,096 color palette.
PC speaker digital audio: volume was too low, extremely distorted. Digger is the only pre-1986 game I can remember doing that.
And, the PC graphics capabilities were: No sprites (other than blinking text cursor), no hardware blitting, slow video I/O (latches), no copper chip (to change video settings at any horizontal interrupt), and no video interrupts (which would have avoided the infamous Turbo button and insane CGA snow).