Tool Man

A summary of the what john could use the following technology for:

PDA, GPS, Laptop, software, Mobile Phone, the internet;

John could use a PDA to act as his diary and address book, so he would not need to carry so many paper based sources of information, as a PDA is lightweight, stylish, can store than a diary can, endless capabilities with ad-ons, etc. This is what he should really choose to replace the diary and address book.

John would mainly use a GPS system to navigate to and from clients, replacing all his maps and A-Z's. It would mean he could still enjoy his personal time in his car just without the major stress of getting lost or stuck in traffic.

John would obviously use his laptop for replacing his bulky sales catalogue's' everywhere. There would be a version of them on screen where it can be edited, unlike the catalogue, he only ever needs to have one copy of the catalogue on his laptop. He could also use it as a calculator or for him to make sure all the administration and sales data are handled properly, as he can take his time over it. 

The latest software like iTunes, will allow him to download the latest music, or an older song, onto his mobile phone or laptop, for this though he needs to have access to the internet. 

The possible disadvantages of all this technology is that he becomes too reliant on it, and if any of it were to crash hours of work or lots of money could be lost, so therefore, i would alsoo suggest still keeping a paper copy in the boot or back at his office, to make sure he would still be able to work if a piece of this hardware were to fail.