Natharinee Kannala

               Computer in everyday life

          Computers are part of our everyday lives. They have an effect on almost everything you do. When you buy groceries at a supermarket, a computer is used with laser and barcode technology to scan the price of each item and present a total. Bar coding items (clothes, food, and books) requires a computer to generate the barcode labels and maintain the inventory. Most television advertisements and many films use graphics produced by a computer. In hospitals, beside terminals connected to the hospital’s main computer allow doctors to type in orders for blood tests and to schedule operations. Banks use computers to look after their customers’ money. In libraries and bookshops, computer can help you to find the book you want as quickly as possible.

Exercise

Direction :Tick ( / )    the  computer uses  mentioned  in the following article.

.....home                                   .....art

.....hospitals                               .....banking

.....engineering                           .....libraries

.....shopping                               .....film-making

.....television  advertising         .....schools

LANGUAGE WORK : Articles

Study these nouns.

     a supermarket      technology     a computer     money

    Supermaket and computer are countable nouns.

    We say a supermaket and supermarkets.

    Technology and money are countable nouns.

They have no plural and you cannot use them with a or an.

 

Study this paragraph.

     Computers have many uses. In shops a computer scans the price of each item. Then    the computer calculates the total cost of all the items.

We use a plural noun with no article, or an uncoutable noun, when we talk about things in general.

     Computers have many uses.

     Information technology is popular.

We use a / an when we mention a countable noun for the first time.

     In shops a computer scans the price of each item.

When we mention the same noun again, we use the.

     The computer calculates the total cost.

We use the with countable and uncountable nouns to refer to specific things.

     The price of each item.

     The total cost of all the items.

     The speed of this computer.