3.1 Look at A opposite. Which type of computer do these descriptions refer to?

1.       A hand-held computer which can be used as a telephone, a web explorer and a personal organizer. ?

                 - jawaban : PDA

2.       A typical computer found in many businesses and popular for home use ?

- jawaban : Desktop PC

3.        A large computer  used for intensive data processing and often linkend to many terminals?

- jawaban : Mainframes

4.       A  small computer that fist into items of clothing?

- jawaban : wearable computer

5.       A portable computer that can be closed up like a briefcase, but it can be as powerful as a dekstop PC ?

- jawaban : Laptop

6.       A full-function PC,though it only weighs  1.2kg – you can go to a meeting and write you notes on it,like a paper noteped;its screen mode can be changed from portrait to landscape?

- jawaban : tablet PC

3.2 Look at the computer advertisement and find this information.

              1. what type of computer is advertised ? laptop

              2. what kind of screen does it have?  Widescreen

              3. which pointing device replacass the mouse ? Touch

              4. what type of ports does it have for connecting cameras and music players ? USB

             5. what sort of power supply does it use ? lithium – ion baterypac

             3.3 Read this interview with Adam Hawkins, an IT manager, and complete it with words from the PDA section opposite.

  Interviewer :  what are the basic features of a PDA ?

Adam           : well, a typical PDA is a (1) Hand held  device that runs on batteries and combines              

                       computing  ,phone and net capabilities.

Interviewer : and how do you enter information ?

Adam            : for input, you use a (2) small keyboard or pen to write and make selection on a (3) touch

                         Screen; they also have buttons for launching  programs .some  models have a small

                         keyboard they may have a (4)voice recognition software system that reacts to the user’s

                   voice.

Interviewer : Do they need special software ?

Adam :   yes, most of them run on windows mobile.palmtops supported by palm inc.use palms   OS.pen-

              based system include (5) hand writing recornition so you write on the screen and the computer           

               recognizes your handwriting and inserts the appropriate letters.

Interviewer:what sort of things can you do with a PDA?

Adam: you can store personal information, take notes, draw diagrams and make calculations. Many

            PDAs can access the. Net via (6)wirelless technology.