Fergana branch of tashken university of information technologies named after al

APPENDIX 5. POST- PRACTICE ACTIVITY 
Read part B of the text and decide if the sentences are True or False. If they are False correct them 
 
1.  1Gphones had a slower transmission speed that 2G. 
2.  2G phones introduced analogue technology. 
3.  GSM started to be used in the 80s. 
4.  Smart phones can be used for other purposes, e.g. as a personal digital assistant. 
5.  People won’t be able to watch live TV on 4G phones. 
6.  SIM cards enable users to keep important information. 
7.  UMTS, the standard used 3G phones, has made video phones a commercial reality.