1. Journey of Computer and Information Technology
Volume 1
2.2 Classification of Computers

2. Types of Computers 1. Palmtop
 It is a small mobile computer that literally fits in the user’s palm.
A smart phone has the function of a palmtop.
A palmtop

3. 3. Notebook Computer (Laptop)
2. Subnotebook Computer
 A portable computer that is smaller and lighter than full-sized notebook computer.
3. Notebook Computer (Laptop)
 Similar to a desktop computer, but is comparatively small, light-weighted and portable.

4. Advantages Disadvantages
Advantages and Disadvantages of the Notebook Computer
Advantages
Disadvantages
 Internal hardware components are easy to damage.
 Smaller and lighter than the desktop computer.
 Difficult to replace and update components.
 Fitted in briefcases and easy to carry.
 More expensive than the desktop computer.
 Relies heavily on power saving battery technology.

5. Very convenient!
My notebook computer is running out of battery.
More and more people use notebooks instead of desktops

6. 4. Desktop Computer A tower model A desktop model A slimline model
 It is designed to fit comfortably on top of a desk.
A tower model
A desktop model
A slimline model

7. 5. Mainframe 6. Supercomputer
 It is capable of supporting hundreds or even thousands of users working on different programs simultaneously.
6. Supercomputer
A computer that performs at the currently highest operational rate for computers.

8. Discussion
State the differences between a desktop computer and a notebook computer. Which would you prefer to have? Why?

9. END
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