1. Computer Applications
Types of Computers
Computer Applications

2. Introduction
There are many different types of computers available today.
They are categorized into different types depending on their size and processing power,
What are the categories?

3. Desktop / PC
A computer that is designed to meet the needs of one individual
Has a central processing unit housed in a metal case (often called a tower) along with a keyboard, mouse and monitor
Intended for use at one single location

4. Desktops are used for:
Desktops are used for running applications (full scale, complex software) including:
Office Software—Word processing, spreadsheets, presentations, and databases
Engineering designing software—CAD/CAM and other designing software for homes, kitchens, airplanes and more…
Photo and Video editing
Music—creating, playing and storing
Internet—Entertainment and information

5. Advantages and Disadvantages
Easy to upgrade
Vast range of software available
Easy to mix and match; customize to meet your needs.
Can be used continually for long periods of time
Not easily portable
Requires large amount of desk space
Needs a fan to prevent overheating
Must be plugged in to power outlet

6. Laptop Computer Also known as a notebook
A portable computer that integrates a monitor, keyboard, touchpad, pointing stick, and speakers into one single unit
Runs on a rechargeable battery
People choose to use a laptop because of it’s portability and the ability to run most of the same applications that are run on a desktop computer.

7. Netbook
Smaller portable computer that is more lightweight and has less processing power than a laptop
Can still run word processing and spreadsheet applications.
More netbooks are sold today than notebooks, however, sales of netbooks have declined since the introduction of tablets

8. Advantages and Disadvantages of Notebooks and Netbooks
More expensive than a comparable PC
Easily damaged if dropped
Difficult to repair/ upgrade
Portable
Lightweight
Runs on a rechargeable battery
Runs the same software as a Desktop PC

9. Tablets
Mini, flat mobile computer that uses a touch-sensitive screen for input and navigation.
Uses application software called an App: a small, specialized program downloaded onto mobile devices.
Uses: To access apps, , Internet, minor editing of documents, play games and more… without lugging around a larger computer.

10. Advantages and Disadvantages of Tablets
Small and lightweight
Long battery life
Powers up immediately (no boot process)
Tablets can run ‘lite’ versions of office software
With Internet access, it can access your data from anywhere
Small screen
Keyboard is small and difficult to use
Easily damaged, not easily upgraded
Expensive Internet Access plans

11. Mobile Device
A small, pocket-sized computing device with a touch screen and memory card for data storage.
Also known as a handheld.
There are many kinds of mobile devices.
They run apps
Uses:
Personal organization
Internet access
Phone
GPS
Camera
Media player for audio and videos.

12. Advantages and Disadvantages of Mobile Devices
Expensive monthly access plans
Reception is poor in some areas
Safety (use while driving or walking)
Social (limits association interactions)
Distraction at work/school
Easy to lose or damage
You can carry it with you (in your pocket)
Fingertip access to the Internet, and data
Use of phone to contact others
Helps with organization
GPS, phone, texting, face-time and more…