dismissed via a specific means, in this case, a device called a recorder

रिकॉर्डर द्वारा निकाला गया

English Usage: The employee was fired by recorder without any prior notice.

Hindi Usage: कर्मचारी को बिना किसी पूर्व सूचना के रिकॉर्डर द्वारा निकाल दिया गया।