Prabhakar married Nirmala Sitaraman in 1986. They have a daughter. His mother was Congress MLA in Andhra Pradesh, while his father Parakala Seshavatharam was a long time Legislator and served in three successive Cabinets in the state of Andhra Pradesh in the 1970s and early 1980s. Parakala took his doctorate from London School of Economics. He did his Master of Arts (M.A.) and Master of Philosophy (M.Phil) from Jawaharlal Nehru University (JNU), New Delhi.
prativedan ke liye engineer digital system ke prakaaron par vichaar karte hain. adhikaansh digital system "sanyojan system" aur "anukramik system" mein vibhaajit ho jaate hain. sanyojan pranaali mein hamesha jo input diya jaata hai vahi aautaput vah deta hai. yeh mool roop se laujik prakriya ke set ka pratinidhitv karta hai aur jiski charcha pehle hi ki ja chuki hai.