This is the simplest method of searching .In this method the element to befound is sequentially searched in the list.This method can be applied to a sorted or an un-sorted list.Searching iscase of sorted list starts from 0th element and continues until the elementis found or an element whose value is greater (Assuming the list is sortedin ascending order) than the value being searched is reached.As against this,searching in case of unsorted list starts from 0th elementand continues until the element is found or the end of list is reached.