VON NEUMANN MODEL

                                         THE VON NEUMANN MODEL

 -WHAT IS IT?

the Von Neumann model is a type of pc architecture built and developed by Von Neumann in 1945, it's used in almost all computers nowadays. The alternative for this model is the Harvard model which is only used for small embedded computers and signal processing.

-COMPONENTS

It basically consists of a single, shared memory for programs and data, a bus for memory access, an arithmetic unit, and a program control unit.

COMPONENTS AND FUNCTIONS:

-CPU:

The cpu mostly receives instructions and data from an input or memory and it is responsible for executing the instructions of a computer program.

-BUS:

Buses are the high-speed internal connection means by which information is shared between the registers they are used to send control signals and data between the processor and other components.

There are three types of buses:

-adress bus: carries the address of data .

-data bus:carries data between the processor, the memory unit and the input/output device.

-control bus: carries signals/commands from the CPU.

-RAM (MEMORY UNIT)

It collects data that has been previously used with associated circuits that transfer information in and out of the storage.

-HARD DRIVE

Storage device that keeps all the information in the device

-INPUT/OUTPUT

Means of getting information in and out of the computer