$$

Q$4.$ T$1$ and T$2$ jobs, which are completed in $80ns$ and $90ns,$ respectively, are performed on different virtual cores at the same time. After the jobs are finished, a new T$3$ job is processed in another virtual core as $T3=T1+T2.$ If $T1$ and $T2$ jobs can be divided into at least $2$ and at most $6$ segments, in how many ns can the T$3$ job be obtained in the fastest? After how many seconds will the first output of the T$3$ job be obtained according to the segmentation you have made? Make the necessary explanations by drawing the SpaceTime diagram. $($T$3$ job will be done in single segment and register delay is $5$ns for each segment$)(30$P$)$