Amateur conservationist and social media influencer Theerasak 'Pop' Saksritawee has a rare bond with Thailand’s critically endangered dugongs. With dugong fatalities increasing, Pop works alongside scientists at Phuket Marine Biological Centre to track the mammals with his drone and restore their disappearing seagrass habitat. Translating complex science for thousands online, Pop raises an urgent alarm about climate change, pollution and habitat loss — before Thailand’s dugongs vanish forever
“Small” CPUs such as those found in embedded SoCs have lacked this feature since their inception. I trace this convention back to the introduction of the ARM7TDMI core in the 1990s. Back then, transistors were scarce, memory even more so, and so virtual memory was not a great product/market fit for devices with just a couple kilobytes of RAM, not even enough to hold a page table. The ARM7TDMI core’s efficiency and low cost made it a runaway success, shipping over a billion units and establishing ARM as the dominant player in the embedded SoC space.
。viber对此有专业解读
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