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USB Flash Drives
Universal Serial Bus (USB) flash drives are currently the most common form of portable data storage device. Questions about USB drives belong here.
1,651 Questions
How do you turn write protection of a sd card?
SD (Secure Digital) card readers go into 'write-protect' mode if there is a notch cut into the upper-left edge of the card. This is similar to the write-protect cutout on floppy disks, and audio or video tape.
Many SD cards provide reversible write-protection by means of a pre-cut notch, and a small sliding tab: Sliding the tab downwards (toward the position marked 'lock') exposesthe notch and activates write-protection. Conversely, sliding the tab upwards covers the notch, which deactivates write-protection.
But sometimes, even though set to the 'unlock' position, the sliding tab doesn't protrude enough to deactivate write-protection. In this case, placing a few layers of scotch tape over the tab can thicken it enough to allow writing to the SD card. Note: Care must be taken to ensure the gold contacts on the card aren't blocked by the tape!
Other cards that don't have a switch like this may use the default settings (configured by the device that it came with) to disable writing to the disk. Note: these other card types are probably set to be write protected by the device software that came with them (such as a digital camera and the accompanying software would figure that it is the only interface that will write to your memory card).
Virtually *all* USB devices that have onboard storage capacity will in raw form be seen by the computer as an added hard drive. You can check for this by going into My Computer or Explore (on IBM based pc's). If you can get to a file/folder view of the memory card you are asking about, try and set the (top level) folder properties and/or file properties to *not* be hidden or read-only. More information regarding file permissions can be clarified by researching file attributes.
How many pages will fit a 16gb flash?
The average document without graphics is about 20 kilobytes. Therefore, a 16 gigabyte flash drive would hold about 800 million pages.
What is a removable flash memory device?
A removable storage media is a device that can be used to store data but does not necessarily have to be permanently attached to the computer. Examples of removable storage media include flash disk, diskettes, and CD.
How many pictures in a 256MB SD card?
The correct answer to this question is, "It all depends." Every camera resolution saves photographs of a particular size, and depending on your camera's resolution you can calculate the image size. As an example, a 4 megapixel camera, saves a 300 kilobyte file. So you calculate the capacity of your memory card as (1024x256)/300 = 800 images 1024 kilobytes make 1MB. 1024 multiplied by 256 gives you the capacity of your memory card in kilobytes. Divide that, by the size of your photograph, to arrive at the number of pictures your memory card can store. In my 12 megapixel Nikon D300 camera, I get jpeg images that are about 2.5mb, which in kilobytes workes out to about 2560kilobytes.
This in turn means that a 256 mb card can hold (1024x256)/2560= 102 photographs or so...
Super Speed USB is faster and is usually identified by a blue port or wire.
Basically USB 2.0 is High Speed (480Mbps) and USB 3.0 Super Speed (5Gbps).
What is the highest memory flash drive?
There is no limit, it's just how much you want to spend to get a custom one. I spent £258 on my 4tb (tregabit) one, basically 4000 mb (megabits) but that is because I do a lot of pc work and I download a lot of stuff :).
What is an example of a USB flash drive?
Non-volatile storage ram. Ram which remains persistent even when removed from an active power source.
Hope this helps.
When was first usb flash drive?
The USB Flash Drive was introduced in 1996 and invented by Dov Moran while he was working for M-Systems.
What is the function of volatile and Non volatile memory?
non volatile memory is the computer memory that can retain stored information when not powered . examples flash memory . read only memory.(F) ram.
volatile memory is the computer memory that requires power to maintain stored information in other words it need power to reach the computer memory volatile memory retain the information as long as the power supply is on .
What is the name of the hole into which flash drives are inserted into the computer?
Most flash drives plug in to a USB port.
Why were flash drives invented?
Look around. You probably dont see very many floppy disks anymore, do you? All of the new computers are being made without them. Flash drives are like floppy disks, only sturdier, more compact, and they have a LOT more space on them. They plug into a USB port, which 98% of computers have.
The main reasons a technology becomes popular:
1. Increased/increasing storage capability
2. Decreasing cost
3. Compatibility with other [widespread] technologies
and maybe 4. portability
Click on the icon of the USB drive.
Press Command I
A window will open. You can see the present name of the drive.
Select the name and change it to what you want. There may be a requirement for a simple name, so try to keep it short and with no special characters. Spaces are allowed.
You can also paste an image to be used as the icon in this pane.
Find an image for the icon. Click on it and press Command I. You will see a little image in the upper left corner. Click it until there is a blue edge around the little image. Press Command C. Click the little image in the USB drive pane. Press Command V. Some images do not have a preview image that can be copied. If a standard JPEG image is shown, select a different image to copy.
Where can a Kingston flash drive be bought?
If you are looking for a Kingston USB stick you can buy one in any of your local supermarkets. Also they are not normally very expensive to buy either.
How many devices can a PC using an internal USB 2.0 interface support?
If you have 2.0 hubs and 2.0 hardware, then yes, they should work. You can use 1.1 hardware in a 2.0 hub. It's just slow, that's all.
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How much do flash drives cost?
The cost of the average flash drive will vary depending on the size. There are many novelty flash drives that cost less than $10 but are also small in terms of capacity. A good flash drive, however, will run about $20 to $40 for 8gb to 16gb.
Does formatting a drive erase the data?
Yes, Surely it will remove everything on hard drive. Formatting a hard drive means to remove everything on hard drive. If you are formatting only a specific drive like C:\ or D:\ then the data in only that drive will be removed.
How much can a pen drive store?
It depend upon its capacity, different storing capacity pen drives are avialable in the market ranging from 500 MB to some GBs
- USB1 - 1.5 Mbit/second and 12 Mbit/second
- USB2 - 1.5 Mbit/second, 12 Mbit/second and 480 Mbit/second (but bus overhead limited this to 280 Mbit/second in actual usage)
- USB3 - 1.5 Mbit/second, 12 Mbit/second, 480 Mbit/second and 5.0 Gbit/second (but bus overhead limited this to 4.0 Gbit/second in actual usage)
- USB3.1 - 1.5 Mbit/second, 12 Mbit/second, 480 Mbit/second, 5.0 Gbit/second and 10 Gbit/second (but bus overhead limited this to 7.2 Gbit/second in actual usage)
See: http://en.wikipedia.org/wiki/USB#Version_history
How do upload stuff on a flash drive?
Plug in the flash drive, generally done through a USB port
then open up your "My Computer" folder, look for the flash drive under all the drives, usually an F,G or H drive but not always, and open the drive
then drag and drop the files you want into the folder
How much storage has a USB have?
A USB memory stick usually has between 1GB and 32Gb of storage, but it goes all the way up to 128GB.
I suppose by flash drive you are referring to a USB stick. My answer is "yes and no". It depends on the program so to speak. You would probably have a hard time running a complete office install from a stick. I hesitate to discount it completely, because I have never tried. A single executable file can easily be stored on a stick and executed from the stick. You can even have a program auto-execute when you insert the stick into your computer. I believe there have been security issues in this regard on certain operating systems, and you will probably have to enable this feature in your operating system.
