The basic architecture of computers was developed by:

Question

Accepted Answer

The correct option is (1):
Jon Von Neuman is credited with developing the fundamental, **stored-program concept** which forms the basis of the modern computer architecture. His landmark 1945 paper, "First Draft of a Report on the EDVAC," detailed a design where both the program instructions and the data are stored in a single, shared memory space. This conceptual blueprint, now universally known as the **Von Neumann Architecture**, dictates the structure of virtually all modern computers, comprising the Central Processing Unit (CPU), the Arithmetic Logic Unit (ALU), the control unit, memory, and Input/Output components. The adoption of the stored-program model revolutionized computing by allowing programs to be modified and executed more flexibly and efficiently than previous hard-wired machines, making it the definitive "basic architecture."

The incorrect option is (2):
Blaise Pascal was a 17th-century French polymath whose contribution was the *Pascaline*, one of the world's first mechanical calculating machines. The Pascaline was an analog device designed primarily for addition and subtraction. While an important milestone in calculating history, it did not possess the memory and logic control of a general-purpose electronic computer, nor did it incorporate the stored-program concept defined in the question. His work is separated from the basic computer *architecture* by centuries of conceptual and technological evolution.

The incorrect option is (3):
Garden Moore (properly, Gordon Moore) is a contemporary figure, an engineer and co-founder of the Intel Corporation. He is famously known for enunciating *Moore's Law*, a prediction about the doubling of transistor density on integrated circuits. Moore's work pertains to the scale and advancement of microprocessors, which are implementations of the basic architecture, not its original design or fundamental conceptual development. His legacy is in microchip fabrication, not foundational computer organization.

The incorrect option is (4):
Charles Babbage is universally acknowledged as the "Father of the Computer" for his conceptualization of the *Analytical Engine* in the 19th century. This mechanical machine was the first to contain the logical components of a modern computer, such as a memory and a processing unit. However, his design lacked the key feature of a *shared* memory for both instructions and data, which is the defining characteristic of the modern "basic architecture" established by Jon Von Neuman. Babbage's work laid the groundwork, but Von Neuman provided the architectural model used today.