英语翻译A bus generally contains a set of control lines and a se

英语翻译
A bus generally contains a set of control lines and a set of data lines,The
control lines are used to signal requests and acknowledgment,and to indicate
what type of information is on the data lines.THe data lines of the bus carry
information between the source and the desination.This information may
consist of data ,complex commands,or addresses.For example,if a disk want to
write some data into memory from a disk sector,the data lines will be used to
indicate.the address in memory in which to place the data as well as,to carry
the actual data from the disk .The control lines.will be used to indicate
what type of information is contained on the data lines of the bus at each
point in the transfer.Some buses have two sets of signal lines to separately
communicate both data and address in a single bus transmission.In either
case,the control lines are used to indicate what the bus contains and to
implement the bus protocol.