Question: What does SM and SD mean?

Is SD card RAM or ROM?

Both are memory, but the speed of RAM is much higher than the speed of ROM. ROM is an external storage. For example, we can often buy an SD card into the mobile phone, which is the mobile phone ROM. The mobile phone ROM is the memory card we usually say, and it can also be simply understood as a mobile phone hard disk.

Write us

Find us at the office

Kortz- Clang street no. 12, 89735 Prague, Czech Republic

Give us a ring

Alexie Halama
+68 599 734 157
Mon - Fri, 8:00-19:00

Say hello