Serial-to-Parallel Conversion

Parallel data can be taken from a register by reading the Q output of each flip-flop.
Serial data can be applied to a shift register by applying one bit at a time to the MSB input for a shift right register.
For a shift left register, data must be entered one bit at a time at the LSB.
A strobe line is used to enable the clock so that the register is shifted only once for each data bit.