Career_Paths_Information_Technology_Answer Key Book 2 Unit4 Storage Devices.pdf

1. Storage Devices

2. Unit4 Storage devices
Vocabulary
1. Array (n) An array is a group of disk drives that are connected and used as a single unit.
2. CD-R (Compact Disc-Recordable)(n) A CD-R is a blank CD that can have information written on it only
once.
3. CD-RW (Compact Disc-Rewritable)(n) A CD-RW is a blank CD that can have information written on it
multiple times.
4. Data compression (n) Data compression is the process of storing information using less storage space by
reducing the number of bits it takes up.
5. Failure (n)A failure occurs when a disk drive malfunctions and the data stored on it cannot be accessed.
6. Floppy disk (n) A floppy disk is a flexible magnetic storage disk encased in a square plastic shell that is
used to transfer data.

3. Vocabulary
7. Magnetic tape (n) Magnetic tape is a long, narrow piece of magnetized plastic that is used for storing
information.
8. Memory storage density (n) Memory storage density is the amount of data that can be contained
within a given computer storage device.
9. RAID (redundant array of independent disks)(n) RAID is a method for combining multiple disk drives
into a single storage unit that can increase computer performance dramatically.
10. SATA (Serial AT Attachment)(n) SATA is an interface for connecting storage devices to a computer system.
11. USB flash drive (n) A USB flash drive is a portable flash memory system that uses a USB interface to
connect to a computer and transfer information.
12. Zip drive (n) A zip drive is a removable disk storage system that is typically used to transfer data.
Unit4 Storage devices

4. Task 1: Before Reading
Q.1. Which types of storage devices do people use?
A.1. People use two types of storage devices
HDD(hard disk drive)
SSD(solid state disk)
Q.2. What do people use USB flash drives for?
A.2. People use USB flash drive for storage, data backup, and transferring files between devices.
Unit4 Storage devices

5. Task 2: Reading
1. What is the main idea of the form?
A a request for new equipment
2. Which drive stores more data than magnetic tape?
D USB flash drive
3. It can be inferred the USB flash drives are…
B more efficient than floppy disks.
Unit4 Storage devices

6. Unit4 Storage devices
Task 3: Vocabulary
1. Set up a array to combine drives.
2. The old drive has low memory storage density and holds little data.
3. A CD-R can only be written on once.
4. A zip drive uses removable disks to transfer data.
5. Without data compression on more data will fit on that drive.
6. A CD-RW can be written again and again.
7. RAID software improves hard drive performance.

7. Unit4 Storage devices
Task 4: Check (v) the sentence that uses the underlined parts correctly.
1. v A. Save the file on the USB flash drive.
B. Arrays are made from a series of floppy disks.
2. A SATA drives are used to increase processing speeds.
v B. A drive failure means the data disk drive is inaccessible.
3. A. RAID arrays are made of magnetic tape.
v B. Floppy disks are an older technology.

8. Unit4 Storage devices
Task 5: Listening
Q. What do GENETech Systems use to back up their main data?
A. GENETech Systems use magnetic tapes to back up main data.
Task 6: Listening
1. T The company will purchase an array.
2. F All of the requests were approved.
3. F Management thinks a new main data back up device is too expensive.

9. Task 7: Listening
1. data loss
2. smaller devices
3. Too bad
4. come up with
5. detailed proposal
6. As soon as possible
Unit4 Storage devices

10. Task 8: Speaking
A: Good morning Simon, I just wanted to tell you that a few of the requests you sent in have been approved.
B: That’s great. Which ones?
A: Well, we’re getting a group of hard drives arranged in an array so that we don’t have any more data loss.
B: OK. What about some of the smaller devices?
A: No, they weren’t approved because management thought they seemed too expensive.
B: I see. What about the main data back up?
A: Yes, we were interested in the savings you mentioned. We just need you to come up with a more detailed
proposal.
B: Sure. When would you like that?
A: As soon as possible.
Unit4 Storage devices

11. Unit4 Storage devices
Task 9: Writing
Form: Simon Rogers
To: IT Employees
I am pleased to inform you that a few of our requests for new equipment have been approved. We are getting
of hard drives arranged in an array as management didn’t like hearing about the data loss. Also, if I can come up with
a more detailed proposal regarding the main data back up, management is very interested. Look forward to hearing
your comments and any further suggestions.

12. Finish