The correct answer is option 'D', John Von Neumann.

- John Von Neumann, a Hungarian-American mathematician, physicist, and computer scientist, is widely credited with developing the basic architecture of the computer.
- Von Neumann's work on computer architecture was mainly focused on the concept of a stored-program computer, which is the foundation of modern computer design.
- In the 1940s, Von Neumann worked on the development of the Electronic Numerical Integrator and Computer (ENIAC), which was one of the earliest general-purpose electronic computers.
- During this time, he proposed a new design concept that included storing both instructions and data in the computer's memory.
- This concept, known as the von Neumann architecture, became a fundamental principle in computer design and is still widely used today.
- The von Neumann architecture consists of four main components: the central processing unit (CPU), memory, input/output devices, and the control unit.
- The CPU performs arithmetic and logical operations on data stored in memory, and the control unit manages the flow of instructions and data between the different components.
- Von Neumann's architecture also introduced the concept of a stored-program computer, where instructions are stored in memory as binary code and can be executed in a sequential manner.
- This allowed for greater flexibility and efficiency in programming and made it possible to create more complex and versatile computers.
- Von Neumann's work on computer architecture laid the foundation for the development of modern computers and revolutionized the field of computing.
- His ideas and concepts continue to influence computer design and have shaped the way computers are built and used today.