Lesson 1 Grammar

Digital transmission.
Analog transmission has been used for many years as the basis of telephone technology and can be very effective for this purpose, but it is not so suitable for high-speed transmission of information. Digital transmission consists of electrical pulses representing data in binary code as a series of on/off pulses. A number of different codes exist. The codes represent characters, transmission control signals, information separators, and device control. Digital technology has a number of advantages compared to analog, including higher transmission speed, lower incidence of errors, and the facility for mixing data consisting of voice, image, and text on the same circuit. It is for this reason that data transmissions will be to use in the future. A network structure known as Integrated Services Digital Network (ISDN) facilitates these aspects.


Exercise 2. Matndan har-xil turdagi olmosh, sifat, modal fe’llarini toping va qo‘llanilishini tushuntiring
Lesson 6.

Grammar: Present Indefinite и Present Continuous zamonlarini solishtiring Text: What is a computer?

Step 1. Gaplarni o‘qing.

1. 
   Every morning Mr. Blake drinks coffee but he is drinking tea now.
   
2. 
   My parents live in London. And I’ m living with some my friends in New York until I find a flat.
   
3. 
   Don’t touch these shoes, they belong to me.
   
4. 
   When are you leaving? Well, the train leaves at 10.30 so I must leave home at about 9 a.m.
   

Step 2. Grammatika:

Present Continuous (I am doing) 1. ish-harakatni hozir, shu vaqtda bajarilayotganini bildiradi..