Published Book on Amazon
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All of IOT Starting with the Latest Raspberry Pi from Beginner to Advanced – Volume 1 |
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All of IOT Starting with the Latest Raspberry Pi from Beginner to Advanced – Volume 2 |
출판된 한글판 도서
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최신 라즈베리파이(Raspberry Pi)로 시작하는 사물인터넷(IOT)의 모든 것 – 초보에서 고급까지 (상) |
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최신 라즈베리파이(Raspberry Pi)로 시작하는 사물인터넷(IOT)의 모든 것 – 초보에서 고급까지 (하) |
Original Book Contents
2.3 SD Card Slot
Raspberry Pi supports SD card which is a type of flash memory for a storage device for installing operating system or storing necessary data. The SD card has less capacity and performance than a hard disk, but it has the advantage that it consumes less power than a normal hard disk.
In Raspberry Pi, an SD card has a special meaning, unlike in other computer systems. When Raspberry Pi is powered up and started for the first time, a special program called Boot Loader is supposed to read the operating system installed on Raspberry Pi from the SD card. If you do not have an SD card or you do not have the proper operating system installed on your SD card, you can not start the Raspberry Pi system.
Depending on the Raspberry Pi model, the SD card slot has changed slightly. The early models, Raspberry Pi 1 model A and B were equipped with a miniSD card slot and the MicroSD card could be used through the adapter. The latest models, Raspberry Pi 1 model B+ and Raspberry Pi 2 model B, are equipped with MicroSD card slots.