Grade 11AET Digital Communication Lessons 1& 2

a telegram is

• is a message sent by a telegrap

• is a message sent by a telegrafe

• is a message sent by a telegraph

• is a message sent by a telegramy

A network is

• is a system of sending short messages

• a computer

• a connection of computers or phones used to sen information

code

• is secret

• is short and secret

• a system of sending short or secret messages

limited means

• very few available

• sacred

• only one copy

another word for allow is

• give a result

• permit

• show

background is

• the history of where someone comes from

• the back of a picture

• the area in front of a person