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The USB mass storage device class (also known as USB MSC or UMS) is a set of computing communications protocols, specifically a USB Device Class, defined by the USB Implementers Forum that makes a USB device accessible to a host computing device and enables file transfers between the host and the USB device. To a host, the USB device acts as an ...
(-)MTP operations are not multiplexable – any ongoing operation must either complete or be aborted before another operation can begin. Unlike USB mass storage, where the host operating system is free to multiplex block transfers, and logical operations are an emergent phenomenon, the operations supported by MTP are more coarse-grained, such as transferring entire files. Neither protocol is ...
The USB standard always included power supply to peripheral devices; modern versions of the standard, defined by the dedicated USB Power Delivery-specifications (USB PD 1.0, since 2012), allow power delivery up to 60 Watts (USB PD 1.0), or up to 100 W (USB PD 2.0 ver. 1.2, 2013; together with USB 3.1), or up to 240 W (since USB PD 3.1, 2021 ...
USB drives with USB 2.0 support can store more data and transfer faster than much larger optical disc drives like CD-RW or DVD-RW drives and can be read by many other systems such as the Xbox One, PlayStation 4, DVD players, automobile entertainment systems, and in a number of handheld devices such as smartphones and tablet computers, though ...
The idle line state is when the device is connected to the host with a pull-up on either D+ (for full speed USB 1.x) or D− (for low speed USB 1.x), with transmitter output on both host and device is set to high impedance (hi-Z) (disconnected output). A USB device pulls one of the data lines high with a 1.5 kΩ resistor.
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Disk Drill is a data recovery utility for Windows and macOS developed by Cleverfiles. [1] It was introduced in 2010, [ 2 ] and is primarily designed to recover deleted or lost files from hard disk drives , USB flash drives and SSD drives with the help of Recovery Vault [ 3 ] technology.