Unit II. Computer systems lesson Theme: Living with computers

APPENDIX 3. LANGUAGE.
Classifying from general to specific

HELP BOX. Classifying from general to specific

‘Classifying’ means putting things into groups. We can classify types of music,parts of a computer, classes of software,etc.

Typical expressions Examples
-are classifies into X categories Storage media are often classifies into three categories:
-can be devided into X categories magnetic, optical and flash memory

-include A hard disk consists of several disks(Platters) and their

-consists of read-write heads.
-is made up of
-is composed of Magnetic storage media include tape catrifges, hard disks.
-comprise

types
There are X types of… There are two basic types of flash memory: flash memory cards-
categories used in digital cameras and USBflash drives, also called pen drives.

Make up sentences with the new words in Appendix 2 using Help Box expressions

1.___________________________________________________________________________

2.___________________________________________________________________________
3.___________________________________________________________________________
4.___________________________________________________________________________
5.___________________________________________________________________________
6.___________________________________________________________________________

APPENDIX 4. (1) VIDEO (2) TEXT

Watch a video and make notes about storage devices

Earlier version of storage devices_______________________________________________

Magnetic__________________________________________________________________
Optical____________________________________________________________________
Flash_____________________________________________________________________
Primary___________________________________________________________________
Secondary_________________________________________________________________