That you can do with the same implant
I do
Basically, the business card stuff would the data payload of the chip… called NDEF it’s data formated for phones to read and understand
The computer you can use a reader like the KBR1 or what I use (more spendy but more compact) the WAVE ID NANO
Both of these work the same and read the serial number of the implant and type it like a virtual keyboard and hit enter automatically