In computer science, a $\_\_\_\_\_$ is a way of organizing and storing data in a computer so that it can be accessed and modified efficiently. Examples include arrays, linked lists, trees, and graphs. Algorithms, on the other hand, are step$-$by$-$step procedures or $\_\_\_\_\_$ for solving problems. They can be applied to manipulate data structures, perform calculations, and process information. Some common algorithms include sorting, searching, and $\_\_\_\_\_$ algorithms. Understanding both data structures and algorithms is crucial for developing $\_\_\_\_\_$ and efficient software.