Across
- 2. pictorial input device used for video conferencing
- 3. used for online communication
- 5. earliest language used by ancient man
- 6. written messages on twitter are called
- 8. means to convey messages to large number of people at the same time
- 9. most popular, instant, convenient and cheapest form of communication through phones
Down
- 1. communication between the sender and the receiver
- 2. process of sending and receiving messages through a medium
- 4. makes tele conferencing and video conferencing possible
- 7. it replaced letters and postcards