What’s the hardware spec for Google Colaboratory? [closed]

You can see the disk information using a command like !df -h. To see CPU specs, !cat /proc/cpuinfo. For memory, !cat /proc/meminfo. Here’s an example notebook: https://colab.research.google.com/notebook#fileId=1_x67fw9y5aBW72a8aGePFLlkPvKLpnBl Edit: Colab now offers a Pro version which offers double the amount of disk available in the free version.

Can I write or modify data on an RFID tag? [closed]

RFID Standards: 125 Khz (low-frequency) tags are write-once/read-many, and usually only contain a small (permanent) unique identification number. 13.56 Mhz (high-frequency) tags are usually read/write, they can typically store about 1 to 2 kilbytes of data in addition to their preset (permanent) unique ID number. 860-960 Mhz (ultra-high-frequency) tags are typically read/write and can have … Read more

How does cpu communicate with peripherals?

In older architectures, peripherals were accessed via a separate mechanism to memory access with special I/O instructions. On x86, there were (and still are!) “in” and “out” instructions for transferring bytes between the CPU and a peripheral. Peripherals were given addresses, for example 0x80 for the keyboard. Simplifying a lot, doing “in 0x80” would read … Read more

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