Basic computer architecture refers to the design and organization of a computer system. It includes the components and their interconnections that enable a computer to perform tasks and execute instructions.

The basic components of computer architecture are:
Central Processing Unit (CPU): The CPU is the brain of the computer and is responsible for executing instructions. It consists of an arithmetic

logic unit (ALU) that performs mathematical and logical operations, and a control unit that manages the flow of instructions and data.

Memory: Memory is used to store instructions and data that the CPU needs to access. It is divided into two main types: primary memory (RAM) and secondary memory (hard disk, solid-state drive, etc.). RAM provides fast access to data, but it is volatile and loses its contents when the computer is powered off. Secondary memory provides long-term storage but is slower to access.

Input/Output (I/O) devices: These devices allow the computer to interact with the external world. Examples include keyboards, mice, monitors, printers, and network interfaces. I/O devices send and receive data to and from the CPU and memory.

System Bus: The system bus is a communication pathway that connects the CPU, memory, and I/O devices. It allows the transfer of data and instructions between these components.

Instruction Set Architecture (ISA): The ISA defines the set of instructions that a computer can execute. It specifies the format of instructions, registers, memory addressing modes, and other architectural features. The ISA serves as an interface between the hardware and software.

Operating System (OS): The OS is a software layer that manages and controls the computer's resources. It provides services such as memory management, process scheduling, file management, and device drivers. The OS interacts with the hardware and enables the execution of user programs.

These are the fundamental components of computer architecture. More advanced architectures may include additional components or variations in design, but these basics form the foundation of any computer system.
Credit Gng
https://gng.com.ng/2023/10/02/top-6-basic-computer-architecture/