dhoomrapaan ka itihaas bahut puraana 5000-3000 E.poo. ke pehle se raha hai jab dakshin America mein krushi utpaadon ki kheti shuroo hui thi; usaka baad mein prayog paudhe ke padaarth ko jalaakaar istemaal ya to durghatanaavash shuroo hua ya upabhog ke anya saadhan ki khoj ke iraade se viksit hua.[1] iska upayog jhaad-foonk ke anushthaanon mein apni tarah se hota raha.[16][page needed] kai praacheen sabhyataaon mein jaise kasadiyon, bhaarateeyon aur cheeniyon mein dhoop jalaana ek dhaarmik anushtaan ka ek bhaag hai, jaise isaraailiyon aur baad ke Catholic aur roodhivaadi krishchiyn church jalaate hain. America mein dhoomrapaan ka mool sanbhavat: jhaadfoonk ke samaarohon mein dhoop jalaane se hua hai lekin baad mein aanand ke liye ya fir ek saamaajik upakaran ke roop mein apnaaya gaya.[2] tambaakoo aur vibhinn helusinojenik (hallucinogenic) nasheele padaarthon ka prayog tanmayaavastha aur aatma ki duniya se sampark mein aane ke liye kiya jaata tha.
dubai mein, (sanyukt arab ameeraat) shekh jaayad road aur garahaud brij se gujarane vaale driver RFID taig ka upayog karte hue tol bhugataan karte hain jise saleek (pathakar) kaha jaata hai. dubai ne ek saarvajanik parivhan card bhi shuroo kiya hai jiska naam Nol [9] hai (jiska arth arabi mein kiraaya hai) jise metro, bas aur vaatarabas mein istemaal kiya jaata hai, ise dubai metro ke sarkaari prakshepan ke 9 September 2009 ke din seva mein pesh kiya gaya tha.
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. 

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