DU$15$ Aha nke oru ngo: Nr$$m$$r$$ gbadoro anya na mmezu nke osisi B $$r$$ nd$$ a g$$nyere: $1.$ Mep$$ta osisi B efu nke otu ogo. $(2)2.$tinye n'ime osisi B $($nke ah$$ ga$-$ag$$nye $$r$$ nkewa nkewa iji nyere aka, dee ya iche$).(2)3.$ch$$ osisi B$.(2)4.$ Oge CPU b$0($th$)$ ma $$ b$$ O$$t logen$)$ iji ch$$ igodo. Gosi $$n$$g$$g$$ ugboro ugboro ka $$ch$$ igodo. $(4)[$Nd$$m$$d$$: t b$$ ogo, h b$$d$$ elu na n b$$n$$g$$ igodo d$$ na osisi B$]$ Ak$$k$$ ah$$ ga$-$ag$$nye: $1.$ Koodu zuru oke $($n$\text{'}$as$$s$$ mmemme $$ b$$la mas$$r$$ g$).2.$ The mmep$$ta nseta ihuenyo. a$.$ Ogo nke osisi B $($t$).$ b$.$ Ogologo osisi B mgbe $$tinyechara $$n$$g$$ igodo $($h$).$ C$.$ Ng$$k$$ta $$n$$g$$ igodo d$$ na $$n$$ nwere igodo $$ch$$ch$($n$).$ d$.$ Ng$$k$$ta $$n$$g$$ ng$$ghar$$ iji ch$$ igodo. $3.$ Nkwubi okwu