Capability
Although 256 words of memory seems extraordinarily small by contemporary IT standards, when "toggling in" programs by hand it seemed quite adequate. There was ample space to create programs that played music, sent and received morse code, operated data storage to media such as a cassette player and even offered game experiences (though these required significant imagination by the user).
Expanded with additional memory, the 77-68 was quite capable of running software such as the TSC BASIC interpreter and users wrote software that offered a wide range of applications at a time when even word processors were a novelty and spreadsheets were largely unknown.
Read more about this topic: Newbear 77-68