0

Guest

Courses New

What is STD full form ISD full form PCO full form Where are these terms used?

What is

STD full form

ISD full form

PCO full form

Where are these terms used?

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60785 Points
one year ago
STD full form is Subscriber Trunk Dialling ISD full form is International Subscriber Dialling PCO full form is Public Call Office The terms STD ISD PCO are used in the telephone system. They allow subscribers to dial trunk calls without operator assistance through trunk lines.

Think You Can Provide A Better Answer ?

Other Related Questions on 8 grade science

View all Questions »

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More