●A data（72）is a file that contains metadata － that is, data about datA. （72）A.structure B.

The maximum number of data that Can be expressed by 8 bits iS（72).A．64B．128C．255D．256

● A group of related fields is called a （75) . （75）A. data B. file C. record D. database

● The maximum number of data that can be expressed by 8 bits is （72） . （72）A. 64 B. 128 C

●In computer science ,a data （72) is a way of storing data in acomputer so that it can be

●A （74) is a named collection of information.（74) A． data B． bus C．CPU D．file

●A （72) is a file that contains metadata—that is，data about data.（72)A．documentB．Excel tab