You can connect the Sharp UP-700 with PC Poll software to program and report on your computer or lap top. The drawback of course is the UP-700 is no longer being made. Depending on your circumstances however it may be worth the cost to interface it. Let's say you have hundreds or thousands of items programmed into the register already and you wish to transfer that data to another system rather than recreate by hand. In that case it would make sense to invest the money in the software and support to connect it.
If you are looking to upgrade your Sharp UP-700 you may want to take a look at one of the many SAM4s cash registers. It is true that the UP-700 was one of the most sophisticated cash registers ever made it pales to todays leading models made by SAM4s.
Take a look at the SAM4s models to select the right replacement machine for the UP-700. Give us a call at 800-863-2274 and we would be happy to consult with you on which would be the best fit. We were experts in the UP-700 when it was a current model so I'm positive we can help you make the right choice.