Suman Murmu is a student with code BWU/BTA/21/252 studying Computer Organization and Architecture with subject code PCC-CSM301. The document discusses the Von Neumann architecture, which was developed in 1947 by John von Neumann and features a central processing unit, arithmetic logic unit, control unit, memory to hold both data and programs, and input/output for user interaction.

1. NAME – SUMAN MURMU
STUDENT CODE – BWU/BTA/21/252
SUBJECT- COMPUTER
ORGANIZATION AND
ARCHITECTURE
SUBJECT CODE – PCC-CSM301

2.  VON NEUMANN ARCHITECTURE
INTRODUCTION
The Von neumann architecture is a design model
for a stored-program digital computer.
The Most important features is Memory that can
holds both Data and Program.

3. HISTORY OF VON-NEUMANN MODEL
 In 1947, John von-neumann at princeton
laboratories, developed the first computer
system with a computer architecture called
Von-Neumann architecture.

4. VON NEUMANN BASIC STRUCTURE:

5. ►Central Processing Unit
The part of the Computer that performs the bulk of data
processing operations is called the Central Processing Unit
and is referred to as the CPU.
►Arithmetic and Logic Unit (ALU)
The Arithmetic and Logic Unit (ALU) performs the required
micro operations for executing the instructions. In simple
words, ALU allows arithmetic (add, subtract, etc.) and logic
(AND, OR, NOT, etc.) operations to be carried out.

6. The Control Unit of a computer system controls the
operations of components like ALU, memory and
input/output devices. The Control Unit consists of a
program counter that contains the address of the
instructions to be fetched and an instruction register
into which instructions are fetched from memory for
execution.
► Control
Unit :

7.  Memory:
In this Architecture , Memory can hold both Data and also
the program processing that data. In modern computers
this memory is called RAM.
 Input – Output:
This architecture allows the users to interact with
computer.