Upgrade

[sje]

Originally Posted by Grant Stockly

After the 680s go out I will start processing orders for 8800 kits. I think all of them are spoken for. There are a few add on options for them. The 2SIO (2 port serial card), PMC (1k ROM), 4MCS (4k ram), and the 18 slot motherboard. I'd been trying to ship Geoff that motherboard since December.

Sounds good to me. Do you have any pricing information for the optional cards available?

[sje]

Perhaps this has been posted before, but here it is again:

http://www.virtualaltair.com/virtual...vac_boards.asp

It's a fairly comprehensive list of Altair brand boards, and many entries have links to original Altair advertising copy. There are some Altair 680 boards, too.

A wish list:

88-PMC8 (8 KB PROM board using 2708 EPROMs; need a programmer as well)
88-16MCS x3 (16 KB static RAM board; three for a total of 48 KB RAM)
88-2SIO (Dual port serial I/O)
88-VI/RTC (Vectored interrupt/real time clock; may need hacking to work with modern power supply)

[Grant Stockly]

Originally Posted by sje

Perhaps this has been posted before, but here it is again:

http://www.virtualaltair.com/virtual...vac_boards.asp

It's a fairly comprehensive list of Altair brand boards, and many entries have links to original Altair advertising copy. There are some Altair 680 boards, too.

A wish list:

88-PMC8 (8 KB PROM board using 2708 EPROMs; need a programmer as well)
88-16MCS x3 (16 KB static RAM board; three for a total of 48 KB RAM)
88-2SIO (Dual port serial I/O)
88-VI/RTC (Vectored interrupt/real time clock; may need hacking to work with modern power supply)

I've thought about making a 16MCS kit, but no one would ever buy it. It requires 32 $4.50 memory chips... I am making a modern memory upgrade which works along with vintage memory cards. Basically it can ignore requests to memory under 1k, 4k, 5k, 8k, 9k, etc. That would allow for a 1k, 4k, 1+4k, 1+4+4k vintage card.

An 88-VI/RTC card is probably going to happen for sure, but unlike the other expansion cards on the website.

I am toying with the idea of running Space Invaders on the Altair 8800. Making an I/O card for the controllers and a special LED display. This project would require an 88-VI/RTC card.