Sound and pictures can be broadcast through
newspaper
radio
television
fax
Which one of the following is a disadvantage caused by the development of technology?
Technology saves time
Work can be easily done by technology
Technology improves quality of life
Technology has resulted in increasing atmospheric pollution
ISD means:
International Subscriber Dialing
Interstate Subscriber Dialing
Indian Subscriber Dialing
Internet Subscriber Dialing
STD means:
Standard Trunk Dialing
State level Trunk Dialing
Subscriber Trunk Dialing
Specific Trunk Dialing
Which one of the following order of development of technology in the communication is correct?
Telephone → Telegraph → Smoke Signal
Telegraph → Telephone → Smoke Signal
Smoke Signal → Telegraph → Telephone
Smoke Signal → Telephone → Telegraph
E - Mails are sent through
post covers/cards
telephone
computer
Which one of the following helps us to send and receive instant messages?
Postal letters
Radio
Pager
Television
Who invented aeroplane?
The Aeroplane brothers
The Wright brothers
Alexander Fleming
Thomas Alva Edison
Telephones across the countries are connected by:
STD
Local
ISD
ATM
Written message can be communicated instantly by
a pager
a fax machine
a mobile phone
both first and second
