Apple MacBook Air Pro 820-3115 Intel Motherboard Schematic Circuit Diagram (BoardView)

 Apple MacBook Air Pro 820-3115 Intel Motherboard Schematic Circuit Diagram (BoardView)

Apple MacBook Air Pro 820-3115 Intel Motherboard

PC Processor Evolution

Intel switched from utilizing numbers (386/486) to names (Pentium/Pentium Pro) for its processors since it couldn't get a registered trademark on a number and therefore couldn't stop clone chip designers from using the same numbers.

The Pentium Pro CPU, the first member of the P6 (686) series, was introduced in 1995. It was the first to be packed with a second die having a high-speed L2 memory cache to accelerate performance, with 5.5 million transistors.

In May 1997, Intel updated the P6 (686/Pentium Pro) CPU and released the Pentium II. The L2 cache chips could be added directly to the module since the Pentium II processors had 7.5 million transistors packed into a cartridge rather than a traditional chip. In April 1998, the Pentium II family was expanded to include the low-cost Celeron processor for basic PCs as well as the high-end Pentium II Xeon processor for servers and workstations. In 1999, Intel released the Pentium III, which was essentially a Pentium II with the addition of Streaming SIMD Extensions (SSE).

AMD purchased NexGen, which had been working on the Nx686 CPU, about the time the Pentium was establishing its supremacy. AMD used the concept with a Pentium interface to create the AMD K6. The K6 was hardware and software compatible with the Pentium, meaning it could plug into the same Socket 7 and execute the same applications as the Pentium. AMD continued to make faster variants of the K6 when Intel shelved the Pentium in favor of the more costly Pentium II and III and made major inroads into the low-end PC market. 

Apple MacBook Air Pro 820-3115 Intel Motherboard Schematic Circuit Diagram (BoardView)

Free Download Apple MacBook Air Pro 820-3115 Intel Motherboard Schematic Circuit Diagram (BoardView)



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