Arrays are defined as the collection of similar types of data items stored at contiguous memory locations. It is the simplest data structure in which each data element can be randomly accessed by using its index number.
An array is a fundamental data structure consisting of a collection of elements, each identified by at least one array index or key. It stores elements of the same data type contiguously in memory, allowing efficient access to individual elements by their index. Arrays offer constant-time access to elements, making them suitable for scenarios where quick access to data based on its position is required. Arrays can be one-dimensional (lists), two-dimensional (matrices), or multidimensional. They are widely used in programming languages and form the basis for more complex data structures and algorithms.