CHAPTER 4 - OUTPUT

Introduction

      • Output is processed data from computer.

      • Output device is a hardware that enable user to send out the processed data out of computer.

      • It can take a form of Image, Text, Sound, Graphics and Video

Example of Output device

• Monitor

• Printer

• Speaker  

• Projector  

Factor Of Quality

• Resolution

  -Is controlled by the number of pixels displayed on the screen

  -The higher resolution, the sharper and the clearer of the image

• Dot pitch

  -Is the diagonal distance between pixels of the same color on the screen

  -The smaller dot pitch (less blank space) the clearer of image

Choosing a Printer

• Speed

  - Determine by Pages Per Minute (ppm)

• Resolution

  - Is measured in Dots Per Inch (Dpi)

• Use and Cost

Types of Printer:

1. Ink-jet printer (cheaper compared to laser printer)

2. Laser printer (can print faster compared to ink-jet)

3. Thermal printer (to print receipt)