7. Output device

Task 1.

---

Tuning-in
a) this should be adjustable and provide good back support (5)
b) This should be more than a metre away from you and as quiet as possible. (7)
c) Keep this level with your eyes. Don't  have it level with the desk. Make sure it is flicker-free and that you can read everything easily. Avoid any glare from the windons (2)
d) Use this if your feet do not rest flat on the floor (6)
e) Make sure this lights your work and not the screen (3)
f) Don't get a stiff neck. Use this when you enter a lot of data (4)
g) Keep this directky in front of you and wuthin easy reach (1)


Task 2.

---

Type	Print quality	Speed	Running costs	Noise level	Prince	Colour
Inkjet	Lowerst	Slower than laser	Expensive	very nouse	Cheapters	Yes
Mono laser	High	Faster	last	quiet	expensive	no
Dye sublimation	more high	Slow	more expensive	very quiet	more expensive	yes

Task 3.

---

What's the print quality like?
print quality like laser
How fast is it?
The printer is faster mono laser
Does it cost a lot to run?
The run printer Dye sublimation
How noisy is it?
It is noise mono laser
It is expensive?
The expensive is dye sublimation

Task 4.

---

1. Twenty-two inches is a common monitor size F
2. A dot pitch of 0.31mm is better thah one of 0.25mm T
3. A maximum resolutions of 1600x 1200 is better than 1280x 1024 T
4. A refresh rate of 85Hz is better than one of 75Hz F
5. a 17-inch monitor is 17 inches wide F
6.



Task 5.

---

Now listen to part 2 of the description to check your answers.
Task 6

---

Reading: Storage device
There are many different kinds of storage device for computers, and developments are taking place all the time. List the storage device mentioned in this unit so far. List any other.

• Usb
• Floppy disk
• Cd-Rom

Task 7

---

Work in groups of three. Read two texts each and complete your sections of the table.

Medium	Advantage	Disadvabtages
Floppy disk Fixed hard disk Removable hard disk CD-ROM disk Magneto-optical disk Magnetic tape	They are also very cheap They are fast and can store much data They are almost fast as fixed hard disks They are removable They are removable, have large capacities and last for long time They it store very large amounts of data	They are slow and have a limited capacity They are fixed inside the computer and you cannot use them to transfer data They are relatively expensive They also slow compared to hard disks They are expensive and do not all conform to one standard They are drives are slow

Task 8

---

Now exchange information with the other students in your group to complete all the sections of the table. Ask questions like these.

What  are the advantages of floppy disks?
Advantages of floppy are very cheap, but are very slow.
What are the disadvantages of magnetic tape?
Disadvantages of magnetic tape are drives slow and not allow random access
Do CD-ROM conform to a  standard?
Cd-rom disks are very common.
 

Task 9

---

Fill in the gaps in this summary of storage devices using the correct word from this list.
but                    however                    because             so             therefore                        for this reason

Floppies are very cheap, but  they are slow and have a limited capacity. Hard disks are fast and can store large amounts of data because they are fixed inside the computer for this reason you cannot use them to transfer data. You can transfer data with removable hard disks but  they are expensive. CD-Rom disks can hold  quite large


Task 10

---

Now fill the gaps in this paragraph about computer uses.

Computers are now part of our everyday life. In shops, they calcule bill in factories, they control machine . In hospital , they look after patient records and medicine. When we have a bank account, a computer control our many . In our homes, computers provide entretanment and information.