The memory card is a storage device used for saving data. In its most common form, it is a small, plastic card that can be easily attached to objects. It is reminiscent of the storage film from the first Nintendo gaming consoles or a floppy disk from a computer. Today, this kind of memory card singapore is used in many devices where saving information is required, such as mobile phones and digital cameras.
Different kinds of memory cards
Memory cards are small storage disks. They are different from hard drives, which store all your files. With hard drives, you have to copy your files from one hard drive to another or from one computer to another. With memory cards, you just insert them into one device and go.
Memory cards are tiny, about the size of a postage stamp, and come in various sizes: SD, SDHC, SDXC, and so on. They have different capacities: 2 GB, 4 GB, 8 GB, 16 GB, and so on. Some cards have slots for more than one card, so you can expand the capacity of your device. Different cards have different speeds, measured in megabytes per second. A card with a speed of 10 MB/s is faster than a card with a speed of 5 MB/s. The first card costs less than the second.
The cards have various connections. The most common is USB, for Universal Serial Bus, which means you can connect them to the USB port of a computer. Some memory card singapore have connections with mini-USB connectors, which stick out of the computer.
Memory cards are versatile. They are not optimized for one thing, such as storing video or audio. Many cards can handle digital video, and almost all cards can handle audio. What a card is best for depends on what it is storing. Some cards use a proprietary connector.
Some are only magnetic. Some can read files stored on other devices, such as iPods and smartphones. You can write data to cards as well as read them. Memory cards have limitations. They cost more per gigabyte than hard drives do, even after you factor in the cost of the computer. And they wear out, Like hard drives.
How to pick a memory card
Memory cards have different kinds of memory, and not all memory cards are equal.
Memory cards have two kinds of memory: volatile and non-volatile. Volatile means that the memory becomes unavailable whenever you turn off the computer. It does not survive a power interruption, and when you turn the computer back on, your programs may be gone. Most memory cards are volatile.
Memory cards also come in two kinds: removable and non-removable. A removable memory card is a card you can plug into your computer. Most removable memory cards are volatile, though not all. A non-removable memory card is not plugged into the computer. It is normally built into the computer. The memory on the card is non-volatile.