Singapore mein, saarvajanik parivhan ki bason aur trainon mein nishkriya RFID ko laagoo kiya gaya hai jise EZ-Link card ke roop mein jaana jaata hai. bheed bhare shahar ke aatanrik kshetron mein yaataayaat ko char tol dvaara niyantrit kiya jaata hai jise stord vailyoo card (kaishakaard ke roop mein gyaat) ke upayog ko ek sakriya taiging pranaali ke saath upayog dvaara laagoo kiya jaata hai.
In 2006 Parakala contested the for the Graduates constituency of East and West Godavari Districts of the newly constituted Legislative Council of the state. He polled about 12,000 first preference votes but narrowly missed to make it to the second round in the single transferable preferential voting system. That was the fourth electoral defeat of Parakala. That election also led to Parakala breaking away from BJP. Parakala claimed that there was an informal understanding between him and the party leadership that he would contest as an independent candidate as the election was not fought on party symbols. This was a tactical move necessary to attract voters who were antagonistic to BJP among the educated sections. He claimed that the party reneged on the agreement and put up an official candidate. Parakala resigned from BJP and went ahead with the campaign. In the event the official BJP candidate did not poll more than 200 votes while Parakala polled over 12,000 first preference votes.
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.