Podcast
Questions and Answers
What is the maximum number of devices that can be connected using a Universal Serial Bus (USB)?
What is the maximum number of devices that can be connected using a Universal Serial Bus (USB)?
What is the name of the USB standard with a speed of 12Mbps?
What is the name of the USB standard with a speed of 12Mbps?
What is the maximum speed of a serial cable?
What is the maximum speed of a serial cable?
What is the name of the USB standard with a speed of 20Gbps?
What is the name of the USB standard with a speed of 20Gbps?
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What type of connector is typically found at the back of a computer for serial cables?
What type of connector is typically found at the back of a computer for serial cables?
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What is the main advantage of a Host Controller in a Universal Serial Bus (USB)?
What is the main advantage of a Host Controller in a Universal Serial Bus (USB)?
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What is the maximum power provided by a Powered Device port?
What is the maximum power provided by a Powered Device port?
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What is the primary difference between USB 2.0 and USB 3.2?
What is the primary difference between USB 2.0 and USB 3.2?
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What is the name of the USB standard with a speed of 5Gbps?
What is the name of the USB standard with a speed of 5Gbps?
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What is the minimum speed required for a device to be classified as Hi-Speed?
What is the minimum speed required for a device to be classified as Hi-Speed?
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Study Notes
USB Standards and Specifications
- A maximum of 127 devices can be connected to a single USB host controller.
- USB 1.1 is the standard that operates at a speed of 12Mbps.
- The maximum speed of a serial cable typically reaches up to 115.2 Kbps, depending on the specific implementations.
- USB 4 is the standard that boasts a speed of 20Gbps.
- The DB9 connector is commonly found at the back of computers for serial cable connections.
USB Power and Controllers
- The main advantage of a Host Controller in USB is the ability to manage multiple connections and maintain device communication through a single interface.
- A Powered Device port can provide a maximum power output of 100 watts, depending on the specific USB standard in use.
USB Performance Differences
- USB 2.0 operates at a maximum speed of 480Mbps, whereas USB 3.2 can achieve speeds of up to 20Gbps with enhancements in data transfer capabilities.
- A device must meet a minimum speed of 480Mbps to be classified as Hi-Speed.
- USB 3.0 is the standard associated with a speed of 5Gbps.
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Description
Test your knowledge of old and new computer peripherals, including serial cables and USB. Learn about the speeds, connectors, and capabilities of each technology.
