The wireless device a manager most likely have before being offered the upgrade by her supervisor is a PDA. The wireless device the supervisor most likely offering to the manager as an upgrade would be a smartphone. Laptop and computer would prove cumbersome if the manager needs to have her hands free to move about the sales floor.
This is because a smartphone has various software installed in it that makes the work assigned more easier compared to other gadgets. A laptop and computer can perform the same works as well but the feasibility related to portability will be a reason for the choice on smartphones over PDA, laptops and computer in an organization.
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