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106

A mouse is a slow device (the old PS/2 standard was RS232C-based), so USB1 is more than adequate. USB3 ports have extra connectors for the high-speed transfers, but also have standard USB2 connectors for backwards compatibility. Unless your mouse has these connectors (and I cannot imagine that any mouse has) it will connect via USB2 in a USB3 connector. ...


101

Yes it can, it's about what happens if you remove the device when it's in use (reading or writing). When you plug in a USB drive, you give your PC free rein to write and read data from it; some of which is cached. Caching occurs by not writing information immediately to the USB device, and instead keeping it in your PC's memory (RAM). If you ...


45

A second reason is that flash drives need to have stable power for ~0.25 seconds after a write command. This is a fundamental physical problem, due random factors some writes may leave a logical 1 bit in a electrical 0.72 state. The fix is easy: just rewrite the bit, perhaps even a few times. Eventually it will stick. If you're really unlucky, the bit ...


30

Just because data rate of a mouse is very low and can be handled by USB 1.x does not mean it can't benefit from being plugging into a faster controller. There are a number of factors in play here: USB 3.0 controllers support backward compatibility by performing enumeration in a way that is compatible with USB 1.x and 2.0 devices, and exposing a logical ...


29

No. A wireless mouse/keyboard does not use regular WiFi (i.e. 802.11x) and can only bind with the receiver it came with. (An exception may be the Logitech Unifying receiver, which allows connecting every Logitech device that supports it, to a single receiver - but still, it will take one USB port.) If you do not want to use a receiver, consider using a ...


24

[First Question] "Does a USB Monitor require a VGA Card?" In response to your first question, no a VGA card[1] is not required to display to a USB monitor. However, a USB card or port is required in order to display to a USB monitor. "This 16-inch portable LED monitor is a must-have laptop accessory and receives both power and signal via a single ...


23

Why not? Firstly, not all USB ports are made the same. Front usb ports are notorious for not supplying enough power for many devices, especially with older/cheaper cases. USB 3.0 may not work for keyboards at boot time for many devices. You might have more than one controller on a system for USB, and that controller may be flakey. In short, it rules out an ...


22

Few people realize everything that goes on under the hood of a flash drive. Unlike hard drives in which a sector is erased and overwritten in a single step, flash drives can write data to a blank 528-byte page much faster than they can perform an erase cycle. Additionally, since each erase-control circuit would use up a fair amount of silicon, flash chips ...


18

We need to take a look at the mouse's polling rate and from that we can have a better idea of how much data is being transmitted. If a mouse has a 100hz polling rate, it is sending data to the computer 100 times a second. A standard mouse will send a 3 byte packet containing info on X/Y position information as well as button information. Considering that 3 ...


17

Yes: rm -rf * Be carefull where you are when you run this it will delete everything from the current directory and all subdirectories. If you only want to delete files, and no directories use: rm * As @DanielAndersson very correctly pointed out in the comments, this will not delete hidden files and directories (those beginning with a .). To delete ...


15

Yes, it would make a difference. USB 2 has a theoretical max of 480 Mbit per second. Actual available bandwidth is about 30-40MB/sec, depending on the chips and the drivers used. Part of this is due to 10% bandwidth reserved for USB1 communication, part of it is because the USB protocol has a lot of overhead. SATA is less flexible (e.g. you can only ...


14

USB devices start out as "low powered" (drawing a maximum of one unit load of power, which is 100 mA in USB 2.0, see 7.2.1 Classes of Devices, page 171), and can negotiate "high power" mode in which the device can draw up to 500 mA in plain USB 2.0. At USB's 5 V DC, 500 mA provides 2.5 W of power, plus or minus tolerances. The operative word here is ...


14

No you cannot - short direct answer. More of the technicality of why it cannot - Most wireless keyboards / mice use 2.4 GHz radio frequency for all their wireless communication. Though Wifi technically uses the same 2.4 GHz frequency but the signals confirm to one of the set IEEE standards such as 802.11b/g/n. So, while the wireless trans-receiver can ...


13

Sometimes, Windows will see the same device on a different port as a different device, and reload the drivers for it.


13

On my HP laptop, USB 3.0 ports logo/symbol have an "SS" (for Super Speed). USB 2.0 ports only have the typical USB symbol with no "SS". See the following image: http://www.usr.com/education/periphimg/USB-connectors-edu.png


12

You are confused here on what the problem is. USB doesn't care if the operating system is 32 bit. 64 bit, 16 bit or 256 bit. What the problem is: there are no 64 bit drivers for your device. You might be able to use a VM, like Windows 7s XP mode to load the 32 bit drivers and OS.


11

Does a portable USB monitor require a VGA Card? No. The USB monitor does not require any other video hardware resources. Some may take advantage of GPUs available, but they do not require them. If I buy a PC without any GPU capability (processor without integrated GPU + motherboard without D-Sub/DVI/HDMI ports and without any discrete graphics ...


10

You can use dd to do a disk dump, i.e. dumping the disk byte-by-byte. Feed it to md5sum afterwards to compute the checksum. dd if=/dev/sdb1 bs=1M count=950 | md5sum where if means where to read from; /dev/sdb1 is your USB device; bs indicates Block Size or how much dd is going to read at a time and 1M means 1024*1024 bytes; count means how many blocks to ...


9

Why not check yourself? Many computer motherboards are able to tell you the power consumption of a usb port via the control panel. Go into the control panel, system > device manager and find the USB port or hub in question in the list. You'll then see power consumption figures like this:


9

As stated in Wikipedia The USB 1.x and 2.0 specifications provide a 5 V supply on a single wire to power connected USB devices. A unit load is defined as 100 mA in USB 2.0, and 150 mA in USB 3.0. A device may draw a maximum of 5 unit loads (500 mA) from a port in USB 2.0; 6 (900 mA) in USB 3.0. As power is equal to current times voltage, all you ...


9

You would have to find Windows 2000 drivers for the USB to Ethernet adapter you are trying to use. You probably won't find any. If this was "updated" to Windows 2000, I'm guessing it's around a 350Mhz-450Mhz system with about 64MBytes to 128Mbytes of RAM. If your son has a smartphone, it's probably at least three times as powerful. To be honest, this is ...


9

The difference is huge: USBv2 has a speed of 480 Mbit/s SATA2 has a speed of 3072 Mbit/s SATA 2 is almost 6.5 times as fast.


8

The thing you're looking for is a KVM switch. Both computers are plugged into the switch, from there it's plugged into the monitor. You literally switch between the 2 PC's by a switch on the box.


8

You can get an HDMI KVM. This will let you plug one monitor/mouse/keyboard into two computers.


7

Use Android File Transfer If you install Android File Transfer (http://www.android.com/filetransfer/), you can use it to access the phone's memory and copy off files. To quote Android.com from the linked page: Android File Transfer is an application for Macintosh computers (running Mac OS X 10.5 or later) you can use to view and transfer files between ...


7

You can use Mac's Image Capture after setting your Nexus 5 USB connection to Camera Mode. To do it do the following: Swipe your screen from top to bottom. click on the little avatar icon on the top right. Click Settings. Go to Device > Storage Click on the Options icon (the 3 dots, on the very top right). Choose USB connection and change it to Camera ...


7

If you don't want to plug it directly to your motherboard, you will need to buy a SATA to USB adapter (or IDE to USB, depends on the HDD's interface). Regarding the power supply, these adapters come with it built in, like this one (just a quick product example, I'm not suggesting this adapter in particular). As you can see, there's a USB cable and a power ...


7

Yes and no. Yes, this is possible. No, it doesn’t work with WiFi (802.11). Instead, this can be accomplished with Bluetooth, another wireless technology built into most modern notebooks. If yours is equipped with it, you can use Bluetooth mice and keyboards. There’s plenty available.


7

Shutdown command on Start screen in Windows 8 does not perform the "real" shutdown: It logs off the current user, closing all the running applications, and then It puts your computer into hibernate mode. It's called Hybrid Shutdown. It is done for quicker startup time: the system does not need to perform full boot process. When you use shutdown command, ...



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