Chinsinsi cha maulalo ambiri omwe ndimagawana nawo komanso zolemba zomwe ndimalemba pabulogu iyi ndizongopanga zokha. Chifukwa chake ndi chosavuta… nthawi ina, otsatsa amatha kukopa ogula mosavuta ndi mtundu, chizindikiro, phokoso komanso zoyika zabwino (ndikuvomereza kuti Apple ikadali yabwino pa izi). Zapakati zinali za uni-directional. Mwanjira ina, Otsatsa amatha kuuza…