IoT involves a lot of different technologies $-$ also known as $9$ pillars of IoT. Please identify the major technologies being used in each one of the following cases, with justification:

a$)$ Manufacturing information is captured and used for improving the quality of a product.

b$)$ Amazon provides tools for warehouse workers to quickly locate products.

c$)$ Maruti is able to anticipate inventory demand from their dealers.

d$)$ Weather forecasting

e$)$ A spare parts company quickly manages many small orders from several manufacturing companies