Why are memory cards not in 3GB?

Why are memory cards and other flash drives not in 3GB, 7GB and 11GB?

ANKITBSB115 pointsBadges:

How to deal with this memory card error

The SD card has been used on my cellphone. It is 64GB Kingston card. Maybe it infects virus when I browse webpages. Anyway, it can’t be opened or even be formatted. This “Windows was unable to complete the format” error is annoying and kills my card. How to fix this and repair my memory card?...

YamagaMoura5 pointsBadges:

Memory card capacity

Most memory card buyers do not understand what to buy? 16-32-64 and now 132gb.  I would like to express capacity in number of average books they would hold etc. or some easy way to explain the quantity they think they need....etc.

RICHZIT15 pointsBadges:

Can you trick an old MP3 player that understands only FAT formatted memory cards to read FAT32?

I have an old apacer audio steno av230 mp3 player but it understands only memory cards that are formatted in FAT type, is there any way to trick it into reading FAT32 type memory card?

justanotherguy5 pointsBadges:

How to delete zoz file

How can I delete a zoz file in a memory card?

sadhnaxerox5 pointsBadges:

Does more memory will help

One of the desktop system shows CPU utilization 100%,It has installed with fabric editor application,this application used for transfer designs to weaving machines through network.If i close this application CPU utilization will come down to 1%.IT has installed with 256 MB memory If i add memory...

ITdump20 pointsBadges:

transfer of contacts and email from device to removable storage card

Is it possible to transfer all contacts and e-mail etc to the (a) media card so that it can be removed to that it is onot available on the device itself?

Paul and his Black Berry5 pointsBadges: