C. Match these words (1-5) with the definitions (a-e)

B. Read the text again and decide whether these sentences are true or false. Correct the false ones.

A. Read the text and then identify a sector and a track in Fig. 1.

Magnetic storage

B. Listen again and answer these questions.

Buying a portable hard drive

B. Complete these sentences with words from the box.

A. Look at the pictures and descriptions below and find the following.

Types of magnetic drive

UNIT 9 MAGNETIC STORAGE

B. A friend has emailed you asking for advice about which printer to buy, the Canon SELPHY CP750 or the Brother HL Network Colour Laser Printer. Write an email to your friend comparing the two printers. Use the Help box on page 40 to help you.

1. The name of the hard drive on a PC platform

2. The type of hard drive that plugs into a socket at the back of a computer

3. The system that works in sequential format

4. The size and storage capacity of a floppy disk

capacity storage archiving hold secondary

1. There are basically three types of magnetic ____ device available to the computer user – hard drives, diskettes and tapes.

2. The ____ of a 3.5* floppy disk is only 1.44 MB.

3. Hard drives can ____ hundreds of times more data than floppy disks.

4. A portable hard drive is a good choice for ____ storage.

5. Magnetic tapes are used for ____ information that you no longer need to use regularly.

A.Sue (see Unit 4) wants to buy a new drive. Listen to her conversation with the sales assistant. Does she buy anything?

The lomega eGo portable hard drive

1. What is the storage capacity of the lomega eGo

portable hard drive?

2. How much information can be stored on the Edge DiskGo model?

3. Which hard drive is good for mobile professionals?

4. How much does the lomega eGo drive cost?

5. How much does the Edge DiskGo cost?

1. A hard drive spins at the same speed as a floppy disk drive.

2. If you format a hard drive that has files on it, the files will be deleted.

3. Hard drives cannot be partitioned to run separate operating systems on the same disk.

4. Seek time and transfer rate mean the same thing.

5. Disk drives are not shock resistant, especially in operating mode.

1. formatted	a. a file system that defines the structure for keeping track of the files
2. directory	b. the part of a drive that reads and records data on a disk
3. read/write head	c. to make a copy of data or software in case the original disk is damaged
4. head cash	d. initialized; when the tracks and sectors on magnetic disks are set
5. back up	e. a serious disk malfunction; when the read/write head touches the rotating disk

D. In pairs, discuss what you should or shouldn’t do to protect your data. Use the suggestions below.

Example: discs on top of each other (stack)

1. Your anti-virus program regularly, since new viruses are created everyday (update)

2. Discs in a protective case (store)

3. Passwords and security devices to protect confidential information (use)

4. On discs with permanent marker pens (write)

5. The disc into the disc drive carefully (insert)

6. Floppies or hard drives near magnets; they can damage the data stored on them (leave)

Note: dis c (optional media); dis k (magnetic storage media)

Дата добавления: 2014-10-15