serial communication between several arduinos to pc
Not directly, no.  A PC's serial port - either a "real" one or a USB one, can only communicate with one device.

The Arduino, though, is a USB device, so you can just plug them all into a USB hub or a bunch of hubs - each one will get its own COM port.  Managing all those COM ports can be kind of tricky though, especially when you have a lot of devices.

Another option, one that is more widely used when you want to communicate with a lot of slave devices from one master device is to use a multidrop network.  RS-485 is the most popular of these.  It allows you to connect many slave devices to one set of serial wires and the master sends instructions to a slave, and the slave may respond with data and information on request.

RS-485 requires special hardware to interface normal TTL level RS-232 (UART) ports to the bus.

You can read more about RS-485 here: https://en.wikipedia.org/wiki/RS-485