Question

A computers memory is composed of 16k words of 8 bits each how many bits are required

Answer 1

16×8=128bits
maybe it is wrong

Answer 2

Most of the computers the smallest addressable unit is an 8 bit byte.

Considering thhis is not a universal characteristic there are some cases where the smallest addressable unit is a 4 byte word (32 bits), and there have been computers whose memories were composed of words of size 60.