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What is a Microprocessor in Computer? The Structure of Microprocessor- Graphics processing units (GPUs)

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What is Microprocessor in Computer? The Structure of Microprocessor- Graphics processing units (GPUs) What is Microprocessor in Computer? The Structure of Microprocessor- Graphics processing units (GPUs)

What is a Microprocessor in Computer? The Structure of Microprocessor- Graphics processing units (GPUs)

What is a Microprocessor in Computer

What is a Microprocessor in Computer?

A microprocessor is a computer processor which incorporates the functions of a computer's central processing unit (CPU) on a single integrated circuit (IC), or at most a few integrated circuits.

The microprocessor is a multipurpose, clock driven, register-based, programmable electronic device which accepts digital or binary data as input, processes it according to instructions stored in its memory, and provides results as output.

Microprocessors contain both combinational logic and sequential digital logic. Microprocessors operate on numbers and symbols represented in the binary numeral system.

The integration of a whole CPU onto a single chip or on a few chips greatly reduced the cost of processing power.

Integrated circuit processors are produced in large numbers by highly automated processes resulting in a low per unit cost. 

Single-chip processors increase reliability as there are many fewer electrical connections to fail.

As microprocessor designs get faster, the cost of manufacturing a chip (with smaller components built on a semiconductor chip the same size) generally stays the same.

Before microprocessors, small computers had been built using racks of circuit boards with many medium- and small-scale integrated circuits. Microprocessors combined this into one or a few large-scale ICs.

Continued increases in microprocessor capacity have since rendered other forms of computers almost completely obsolete (see history of computing hardware),

with one or more microprocessors used in everything from the smallest embedded systems and handheld devices to the largest mainframes and supercomputers.

The Structure of Microprocessor 

What is Microprocessor in Computer

The internal arrangement of a microprocessor varies depending on the age of the design and the intended purposes of the microprocessor.

The complexity of an integrated circuit is bounded by physical limitations of the number of transistors that can be put onto one chip, the number of package terminations that can connect the processor to other parts of the system,

the number of interconnections it is possible to make on the chip, and the heat that the chip can dissipate. Advancing technology makes more complex and powerful chips feasible to manufacture.


A microprocessor is a general purpose system. Several specialized processing devices have followed from the technology:-


A digital signal processor (DSP) is specialized for signal processing.

Graphics processing units (GPUs) are processors designed primarily for real-time rendering of 3D images.

They may be fixed function (as was more common in the 1990s), or support programmable Shaders. With the continuing rise of GPGPU, GPUs are evolving into increasingly general purpose stream processors (running compute shaders),

whilst retaining hardware assist for rasterizing, but still differ from CPUs in that they are optimized for throughput over latency, and are not suitable for running application or OS code.

What is Microprocessor in Computer

Other specialized units exist for video processing and machine vision.

Microcontrollers integrate a microprocessor with peripheral devices in embedded systems. These tend to have different tradeoffs compared to CPUs.

32-bit processors have more digital logic than narrower processors, so 32-bit (and wider) processors produce more digital noise and have higher static consumption than narrower processors. Reducing digital noise improves ADC conversion results.

So, 8-bit or 16-bit processors are better than 32-bit processors for system on a chip and microcontrollers that require extremely low-power electronics

or are part of a mixed-signal integrated circuit with noise-sensitive on-chip analog electronics such as high-resolution analog to digital converters, or both.

Nevertheless, trade-offs apply: running 32-bit arithmetic on an 8-bit chip could end up using more power, as the chip must execute software with multiple instructions.

Modern microprocessors go into low power states when possible, and an 8-bit chip running 32-bit software is active most of the time. This creates a delicate balance between software, hardware, and use patterns, plus costs.

When manufactured on a similar process, 8-bit microprocessors use less power when operating and less power when sleeping than 32-bit microprocessors.

However, some people say a 32-bit microprocessor may use less average power than an 8-bit microprocessor when the application requires certain operations such as floating-point math that

take many more clock cycles on an 8-bit microprocessor than a 32-bit microprocessor so the 8-bit microprocessor spends more time in high-power operating mode.

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NEtechy: What is a Microprocessor in Computer? The Structure of Microprocessor- Graphics processing units (GPUs)
What is a Microprocessor in Computer? The Structure of Microprocessor- Graphics processing units (GPUs)
What is Microprocessor in Computer? The Structure of Microprocessor- Graphics processing units (GPUs) What is Microprocessor in Computer? The Structure of Microprocessor- Graphics processing units (GPUs)
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