In respect to this, is a charger the same as a USB?
Not all USB connectors, cables and chargers are equal. For example, some wall chargers can supply more power than others and one particular USB socket on a laptop may vary in power from the others, or PCs with some able to charge whilst in sleep mode. You will also need to consider Amperage.
One may also ask, can you charge with USB type A? Even desktop motherboards and PC cases have multiple built-in USB Type-A to cater to your every need. But despite being the most widely used, USB Type-A is not capable of delivering enough juice to your laptop, so, therefore, it cannot be used for charging your laptop.
Then, can a USB a charge a device?
Yes. USB power modules are designed to be able to charge multiple devices at the same time. While voltage will be standard across the different USB ports, some modules 'share' their current across ports.
Which is faster USB A or C?
With the right data standard (see below), the USB-C connection is much faster and more versatile than USB-A. In time, you can expect USB-C connections to replace all older USB-A connections and other ports. This switchover will, however, probably take years.
