Optical break through

Answer these questions
Warm up
1. CD-ROM is stands for Compact Dics - Read Only Memory
2. Laser technology
3. Compact disk: Đĩa compact
Laser technology: Công nghệ laze
CD-ROM disk drive: ổ đĩa CD rom
Erasable optical disk: Đĩa quang có thể xoá
A. Read the text and find out the advantages and disadvantages of optical disks
Reading
1. The advantages of optical disks
Storing information at high densities, being ideal for multimedia applications, being secure and stable
2. The disadvantages of optical disks
Being slower than hard drives
B. Read the text again and summerise in the table
Reading
Hold 650 MB, replace 300.000 pages of text
Saving material, corporating databases
Being erased and re-used, creating and duplicating CDs
Baking up hard disks, distributing and archiving information
Hold 17KB
Storing a large of multimedia software and movie
5.2 cartridges hold than 5.2 GB, 3.5 floptical diks have a capacity of 230 MB to 1.3 GB,
Recording information, being ideal for back-up and portable mass storage
A. Read these sentences and clauses and look back at the text in Task 3 to find out what the words in bold refer to
Discourse cohesion
1. They refers to optical disk
2. Which refers to CD-ROM disk
3. You refer to user
4. It refers to CD-ROM
5. Both refers to technology
B. Look at the expressions in italics in these sentences and clauses. Put each expressions (1 to 6) into the right category a, b, or c
Discourse cohesion
1. b
2. c
3. a
4. c
5. a
6. b
Which of the products in the box on page 57 would be most suitable for the purposes below
Speaking
1. CD-ROM drive
2. DAT Data tape drive
3. CD-Recordable drive
4. Hard disk drive
5. Digital Video Disk-ROM drive