Nowadays, almost every mobile device, be it a mobile phone, laptop, camera or MP3 player, has the ability to expand its memory using special memory cards. This is a special removable device designed to store information. It requires no energy to store data and is rewritable. The information that you recorded on the memory card can be stored for a long time (from 20 to 100 years) and can withstand heavy mechanical stress. The main advantage of flash memory is that it is very compact (the usual size is 10-40 mm in length and 3 mm in thickness).
Instructions
Step 1
In order to choose the right memory card, you need to know its main characteristics.
Step 2
Memory card capacity. The larger the size, the more files can fit on the memory card. For example, a 256 Mb flash card can hold 100 high-quality photos, or about 30 minutes of video, or 3-4 hours of music. Part of the card is occupied by service information intended for storing data about files, as well as protecting the device from failures. Therefore, the real volume differs from the theoretical one, which is written on the package, by about 10%.
Step 3
Speed. The faster the memory card, the less time it will take to write data. For a camera, this indicator will increase the number of shots over a certain period of time.
Step 4
Reliability. The most reliable and secure cards are xD and Compact Flash cards. Currently, flash cards are designed for multiple rewriting cycles, which provides data storage for a period of at least 5 years.
Protection. Some cards have the ability to protect data from illegal use.
