UD2 Componentes fundamentales de los sistemas microinformáticos 5

Understanding Microprocessors

Introduction to Microprocessors

• The discussion begins with an introduction to microprocessors, also referred to as CPUs or microcontrollers, highlighting their fundamental role in computer systems.

• The processor is described as the core component that drives the entire system, executing tasks as instructed by programs.

Execution of Instructions

• Programs are executed sequentially by the processor, which reads and processes instructions line by line until completion.

• Internal components of the processor, such as control units and registers, play a crucial role in this execution process.

Major Manufacturers

• Intel is identified as the largest global producer of microprocessors, while AMD is noted for its unique architecture known as "RM."

• Many manufacturers utilize RM architecture for mobile devices and tablets, indicating its widespread adoption across various platforms.

Characteristics of Microprocessors

Performance Metrics

• Two key parameters for evaluating microprocessor performance are introduced: performance (measured in operations per second) and efficiency (related to energy consumption).

• Benchmark tests are commonly used to assess performance across different processors based on their ability to execute applications quickly.

Efficiency Considerations

• A trade-off often exists between high performance and low efficiency; powerful processors may consume more energy and generate more heat.

• Efficiency is defined in terms of electrical consumption relative to operational output—lower power usage with high operational capacity is ideal.

Design and Manufacturing Aspects

Technological Innovations

• Manufacturers strive for improvements in both performance and efficiency through advancements in manufacturing technology.

• Smaller component sizes allow for greater integration within chips, enabling more transistors on a single silicon wafer.

Internal Design Strategies

• The internal design of processors involves strategic placement and function allocation of transistors to optimize processing capabilities.

Technology and Design in Semiconductor Manufacturing

Overview of Technology in Semiconductor Manufacturing

• The discussion begins with an emphasis on the importance of technology and design in semiconductor manufacturing, particularly focusing on mobile devices.

• The minimum size for integration is measured in nanometers (10^-9 meters), highlighting the significance of this measurement in processor fabrication.

• Over the years, there has been a trend towards smaller transistor sizes, evolving from 90 nanometers 15 years ago to current technologies reaching as small as 7 nanometers.

Evolution of Transistor Sizes

• Intel currently operates around 10 nanometers but primarily uses 14-nanometer technology commercially. This reflects ongoing advancements in manufacturing processes.

• Smaller transistor sizes allow for greater integration capacity within processors, leading to more efficient designs and improved performance.

• Intel's product naming conventions include terms like Core i3 and Core i5, which correspond to different generations based on their internal project names.

Current Trends and Future Projections

• AMD is noted for its use of 7-nanometer technology while Intel continues with its 14-nanometer offerings. This indicates a competitive landscape among manufacturers regarding technological advancements.