What is
STD full form
ISD full form
PCO full form
Where are these terms used?
Answer
297.5k+ views
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.
Last updated date: 04th Oct 2023
•
Total views: 297.5k
•
Views today: 2.97k
Recently Updated Pages
10 Examples of Evaporation in Daily Life with Explanations

10 Examples of Diffusion in Everyday Life

10 Examples of Friction in Our Daily Life

What do you mean by public facilities

Please Write an Essay on Disaster Management

What is the Full Form of ICSE, CBSE and SSC

Trending doubts
How do you solve x2 11x + 28 0 using the quadratic class 10 maths CBSE

Fill the blanks with the suitable prepositions 1 The class 9 english CBSE

Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE

Difference Between Plant Cell and Animal Cell

The equation xxx + 2 is satisfied when x is equal to class 10 maths CBSE

Who had given the title of Mahatma to Gandhi Ji A Bal class 10 social science CBSE

Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE

How many millions make a billion class 6 maths CBSE

Find the value of the expression given below sin 30circ class 11 maths CBSE
