Consider the bit stream $0101.$ Sketch the forms for each of the following data formats: $($a$)$ Consider the bit stream $0101.$ Sketch the forms for each of the following data formats: $($a$)$

NRZ$-$L$,$ b$)$ NRZ$-$M$,($c$)$ NRZ$-$S$,($d$)$ RZ$,$ e$)$ biphase$-$L$,($f$)$ biphase$-$M$,($g$)$ biphase$-$S$.$ For encoding

schemes in which the initial level is arbitrary, assume a zero level just before the first bit is

received.

NRZ$-$L$,$ b$)$ NRZ$-$M$,($c$)$ NRZ$-$S$,($d$)$ RZ$,$ e$)$ biphase$-$L$,($f$)$ biphase$-$M$,($g$)$ biphase$-$S$.$ For encoding

schemes in which the initial level is arbitrary, assume a zero level just before the first bit is

received.