What is Memory capacity ?
Amount of data in binary or digital form which can be stored inside the memory constitutes memory capacity. Digital data is always one of the following state 0 or 1.
How do define unit of memory capacity? As an example explain 1 GB (Giga Byte) of memory?
In decimal systems :
1GB = 10^9 bytes = 8 X 1 000 000 000 = 8 000 000 000 bits
Total capacity of 1 GB in bits = 1024 X 1024 X 1024 X 8 bits = 8589934592 bits
Tip to memorize :- This memory is a permanent storage and all your music, pictures, games, applications etc are stored in this memory.
SD can go upto max 2 GB (Giga Bytes)
SDHC can go upto max 32 GB.