You'll need to upgrade the VRAM to 512K to see more than 16 colors at the
highest resolution.
With 256K you can have 8 bit (256 colors) on a 12" 512x384 monitor or 4 bit (16
colors) on a 13" 640x480 monitor.
Upgrading to 512K allows 16 bit (65K colors) at 512x384 and 8 bit (256 colors
at 640x480.
512x384 is an odd resolution and many programs either will not run or will have
some things off screen so you either have to move the windows around or they're
unreachable to click because the window can't be moved. Mostly it's games that
have issues with this resolution. The DayStar 601 upgrades' control panel isn't
usable with it because it was designed for 640x480 and the window position is
locked.
If you have nothing in the PDS, there were a few LC PDS video cards made that
will provide higher resolutions and/or colors, but it'd be a waste to install
one in anything less than an LC III.
The LC was designed to be the least expensive Macintosh, thus Apple hacked it
off at the knees with no support for highcolor (16 bit) or truecolor (24 or 32
bit) modes at 640x480, no resolutions higher than 640x480, a 32 bit 68020 CPU
on a 16 bit bus, a maximum of 10 meg RAM and no support for virtual memory to
keep it from taking sales from the IIsi. The major goal of the LC II was to
stuff the apple //e cards in to sell to schools, to wean them off their old
apple ][ series computers. It did succeed well at that, but wasn't so great at
getting people interested in a Mac for home use, especially not when placed
next to faster PCs at Wal-Mart. :P
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