If electoral register is created by the EMB, what type of technology used for collecting registration data?

Elections in Iran: 2017 Presidential and Municipal Elections

“Iran does not have a voter registration system and voters can vote anywhere as long as they present their national identification card, or shenasnameh.”

Summary Report: Iran’s June 14, 2013 Presidential and City and Village Elections

“Iran does not employ a voters list nor does it assign voters to particular polling stations, removing  a  critical  check  on  illegal  and  multiple  voting  and  creating  opportunities  for ballot  box  stuffing  and  fraud  because  of  excess  ballot  papers.  Authorities should discourage opportunities for fraud by establishing an official voter registry linking voters to designated polling stations.”

Iran does not maintain voter register. Voter can anywhere by presenting their ID cards.