Can you explain what is meant by the concept of an array in programming?

An array in programming is a data structure that stores a fixed number of elements of the same type in a contiguous block of memory. Each element of the array is accessible by an index, usually starting from zero. Arrays allow quick access to elements by index, but their size is typically fixed after creation.

Example of an array in Swift (iOS):

var numbers: [Int] = [1, 2, 3, 4, 5]
print(numbers[0]) // Outputs 1

In Swift, arrays can be mutable and dynamic, but in low-level languages, arrays often have a fixed size.