Arrays in Data Structure Declaration Initialization Memory representation Jenny s Lectures CS IT In this video we ll discuss how data is represented in memory and the need for arrays Faerie explains the need for arrays as we often have to process large amounts of data and arrays allow us to store multiple values under one variable name We ll cover how arrays can be declared and how data can be stored in memory The declaration of arrays is language specific and in this video we ll consider the syntax in the C language The elements of the array are stored in consecutive or continuous locations with their index starting from zero The size of the array cannot be changed at runtime We ll discuss how data is stored in memory with the binary form of the data being converted and then stored The formula to calculate the address of an element is the base address plus the index value multiplied by the size of the data type We ll cover how to initialize the array at runtime using loops or predefined functions and how to take data from the user and store it in an array In the next video we ll discuss how to insert data traverse arrays and perform different operations on 1D arrays We ll also cover 2D arrays and how to access their values