hum log har roz haraaron faisle karte hai jaise bahar jaane se pehle humaare paas ek IF Statement hoti hai jo kehti hai agar baarish ho rahi hai, toh mujhe apni jacket leni padhegi toh computr bahot ache hote hai jab aap us prakar ke faisle kar lete hai ve un cheezon ko tez gati se bharose se nishpaadit kar sakate hain aur isliye, ek computer program asal me thoda ganit hota hai aur thodi IF statements,jaha aese faisle kiye jate hai toh, is paheeli me jo IF khand hai, wo ek zombie (pret) ko ek faisle karne me maddad kar raha hai yeh kuch jaanchta hai udahran ke liye,ek khand lete he jo kehta "agar koi raasta baeen or jaa raha hai" aur isme "baeen or mudhne" ka aadesh daalte hai toh hum zombie ko bata rahe hai ki usse apni aas paas ki jaanch karni hai, aur dekhna hai ki agar baeen or koi raasta jaa raha hai, toh baeen mudho aur fir hum "aage badho" khand ka istemal karte hai "isse dohraao" khand ke andar jisse wo aage badhte rahe jab tak wo sirf seedha jaana chaahta hai aur fir uske baad jab ek modd aata hai tab "IF" khand usse batayega ki usse baeen mudhna,aur hum dekh sakte hai ki ye karne par, ki agar modd aaya toh baeen mudhna warna seedhe chalne par hum apne lakshya par pahuch jaayenge toh ye bas ek udahran tha "IF" khand ke istemaal ka jo ki asal me computer program me kaafi moolbhoot vichaar hai maine sabse pehle zero kaata khelne ka program banana seekha tha toh mere paas "IF" khand tha kehne ke liye ki agar doosra khilaadi jeetne wala hai toh aage jaao aur us jagah ko rok do toh mazze karna "IF" khand ko seekhne me ye kaafi zaroori vichar hai