Different Types of USB Port| Different Type of cables and Connectors| What is USB

Hello world, my name is Amritesh CEO of the Trakin Tech website. I'm currently studying computer science part-time and today, we are going to talk about the USB port, cables and connectors.

》Content or Highlights:

• Definition of USB

• History and Evolution of USB

• Different Type of USB

》USB (Universal Serial Bus)

• Now USB stands for Universal Serial Bus. USB is the standard for connecting peripheral devices to a computer and is by far the most widely used connector. The reason it is used so often is because, as the name suggests, it is universal. Many different types of devices such as keyboards, mice, cameras, printers, scanners, external hard drives, flash drives and even networks and much more can be connected via the USB port. And it's also used to charge devices like cell phones. And desktop and laptop computers have multiple USB ports. 

• The goal of USB development has now been to make connecting devices to a computer much easier, and this is achieved firstly by making a standard connector, which eliminates all other different types of connectors, and secondly, by having attached devices are easier to configure to provide fast transfer rates. The USB port is also hot-swappable, so devices can be connected or disconnected without turning off the computer or device.

• USB is also self-configuring, so no extensive or no setup is required. In addition to being connected to a computer, certain smaller devices can be supplied with power via the USB port without additional power cables.

》Evolution and History of USB:

• The USB version was released in 1996, starting with USB 1.0 with later versions released over the years. Now USB 1.0 had a transfer rate of 1.5 megabits per second. 

• Then two years later, in 1998, USB 1.1 was released and it had a pass-through. Speed ​​of 12 megabits per second. 

• Then in 2000, USB 2.0, also known as Hi-Speed ​​USB, was released, and it had a significant speed improvement over USB 1.1 with speeds of 480 megabits per second. And then in 2008 USB 3.0 was released, known as SuperSpeed ​​USB. 

• USB 3.0 has speeds of 5 gigabits per second. The high speed increase should transfer large amounts. Data, such as backing up to external hard drives. Later versions of USB 3.0 have now been released.

• USB 3.1, which was released in 2013 and is also known as Superspeed plus USB 3.1 with a transfer rate of 10 gigabits per second, which corresponds to double USB 3.Then shortly after the release of USB 3.2, which had a transfer rate of 20 gigabits per second, and in 2019, USB 4 was announced, which has a transfer rate of 40 gigabits per second.

》Different Type of USB Cables:

In addition to the different USB speeds, there are now different types of USB cables, connectors, and ports that you can use. Well, USB cables usually have two different connectors on each end of a cable. Write a Type B or Type C, with the Type A plug on one end and Type B and C plugs on the other end. 

Type A:

• The type A connector is now the host connector. This is a standard rectangular connector that a computer should be plugged into, and computers have multiple Type A USB ports. While this is the oldest type of connector, it is still in use today. 

Type B: Mini B & Micro B

• At the other end of the USB cable you will now find different types of connectors, such as the Type B. The Type B connector has a square design with beveled corners at the top. Now it's an older connector too, but it's still in use today. This type of connector is attached to most printers today, but is also used in other devices such as external hard drives, USB microphones, etc. 

• And another version of a Type B connector is the Mini B. And as the name suggests, it is smaller than a type B plug. The mini B is used in smaller devices such as older smartphones and digital cameras, but is being phased out in favor of even smaller plugs to the micro USB-B port.

• The micro B is about the same width as the mini B, but about half as thick, so it can be connected to even smaller and thinner devices. It is for the connection with modern smartphones, modern digital cameras, MP3 players etc. The micro B came on the market in 2007 and should replace the mini B. There is also the USB 3.0 connection type B. 

• The type B 3.0 has nine pins compared to the four pins of the previous versions. This enables higher transmission speeds and the power supply to a peripheral device. In order to create space for the pins, type B 3.0 is larger and has a different shape than 1 and 2.0 Therefore, due to its size, the 3.0 Type B connector will not fit devices made for USB 1 and 2.0. There's also the USB 3.0 micro B, and this port is just as thin as version 2.0, but wider.

• It's basically a USB 2.0 Micro B connector, but with five additional pins stacked on the side of the connector, which is twice as wide as a 2.0 Micro B.This connector is used to transfer data and power devices such as modern external hard drives. And in 2014, USB C was developed and it was developed using the USB 3.1 standard. This is now a slim connector with rounded edges and 24 pins, and it plugs into a port easily because it doesn't face up and down.

Type C:

• Today, USB C can be found in modern smartphones, external hard drives, tablets, and modern desktops and laptops. In fact, it is even used to charge larger devices such as modern laptops. They have different connectors on each end, with type A on one end and a different type on the other. However, a standard USB Type-C cable has the same connector on each end because Type-C can be connected to a host. i.e. connected to a computer at one end and another device at the other end. This makes a Type-C cable handy as you don't have to figure out which end goes where because it doesn't matter, both ends are the same. But even though that's the typical USB Type-C cable, you can still find USB cables with Type A on one end and Type C on the other. 

The USB ports are now color-coded, which determines which version it is. As I mentioned earlier, a computer has multiple USB ports and they usually have different versions and this is determined by the computer's motherboard. So here is an example of the rear input and output panel on a desktop motherboard, and as you can see it has multiple USB ports with different colors. Now USB 1.0 and 1.1 will be white in color. Now these ports are old, slow, and out of date and you won't find them on modern motherboards anymore. 

• The USB 2.0 ports will be black, and although they came out in 2000, you can still find them on motherboards today. USB 3.0 ports are blue, USB 3.1 ports are teal, and USB 3.2 ports are red.Now there are also ports known as suspend and charge ports, which means that they will continue to deliver power even if the computer goes into sleep mode, which means that it is using a device such as a computer. B. a mobile phone, can continuously charge when the computer goes to sleep, which is convenient. And these ports are red, orange, or yellow in color.

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