Q$.($a$)$ Explain what is meant by the term "Logistics". Distinguish between the

two categories of logistics and name the five traditional modes of

transportation used for external logistics$.$

$($b$)$ Define the purpose and the role of an AGV.

$($c$)$ Describe the $3$ main technologies used to guide AGV's.

$($d$)$ Explain the benefits of RFID Tags over barcodes.