I see you don’t have a mostek with the Apple logo marking, I have a Mostek chip dated 1978,and it has what looks to be factory marks , says Mostek MK34200N. Malaysia. 141001306. Apple 1978. 7909. (24 pin)
That would be a Mask ROM, factory programmed with whatever Apple wanted (fairly common back in the day)
not generally something I collect, but a nice relic
September 13th, 2019 at 12:15 am
I see you don’t have a mostek with the Apple logo marking, I have a Mostek chip dated 1978,and it has what looks to be factory marks , says Mostek MK34200N. Malaysia. 141001306. Apple 1978. 7909. (24 pin)
September 13th, 2019 at 12:33 am
That would be a Mask ROM, factory programmed with whatever Apple wanted (fairly common back in the day)
not generally something I collect, but a nice relic