To connect a TI-83 to a computer one would usually use an original TI USB to jack cable. However there are 2 problems with this solution:
1. they are harder and harder to get;
2. even if you buy one there is a high risk it won't work or will stop working soon - there are reports of firmware failures caused by aging memory chips; this is pretty much irreparable
Fortunately you can use Arduino to achieve the same result. Here is how: https://github.com/jw0k/serial2ti83
After connecting the TI-83 to a computer you can exchange data and programs using TiLP.
1. they are harder and harder to get;
2. even if you buy one there is a high risk it won't work or will stop working soon - there are reports of firmware failures caused by aging memory chips; this is pretty much irreparable
Fortunately you can use Arduino to achieve the same result. Here is how: https://github.com/jw0k/serial2ti83
After connecting the TI-83 to a computer you can exchange data and programs using TiLP.