New Training Technologies (ILO - UNEVOC, 1995, 95 p.): Appendix A Compatibility: Graphic modes

New Training Technologies (ILO - UNEVOC, 1995, 95 p.)

(introduction...)

Introduction

Chapter 1 New Technologies and Training

Chapter 2 Delivery mechanisms and available NTTs

(introduction...)

Delivery mechanisms

1. Group learning

2. Individual learning

Available NTTs

1. NTTs and group learning

2. NTTs and individual learning

Soft technologies

Chapter 3 Selecting the appropriate NTTs

(introduction...)

Political or strategic decision

The teaching/learning environment analysis

Cost/benefit analysis

(introduction...)

1. Courseware analysis and development

2. Course distribution

3. Delivery costs

4. Update costs

5. Intangible costs and benefits

6. A simplified cost model

Chapter 4 Implementing NTTs in a training environment

(introduction...)

1. Demonstrations

2. Order and install equipment

3. Hands-on workshops

4. Train the trainers and developers

5. Prototypes

6. Develop titles

7. Organize help, support

Chapter 5 Trends in NTTs

Conclusion

Appendix A Compatibility

(introduction...)

PC buses (architecture)

Microprocessors

Operating systems

Graphic modes

Digital images, sound and video files

Colour standards

Videotape formats

Appendix B Suggested PC configurations

Appendix C Laser technology

Appendix D Digital versus analogue

Appendix E Digitizing

Appendix F Telecommunications and training

Appendix G More technologies for training

Appendix H Training the disabled

Glossary23

Graphic modes

The graphics adapter that equips a PC determines the quality of text and images one can show on the display screen:

· the CGA (Colour Graphics Adapter) adapter is cheap and offers a rather poor quality; 320x200 pixels and four colours, or 640x200 pixels in black and white; WINDOWS does not support this type of graphics adapter;
· the MCGA (Multi Colour Graphics Adapter) adapter is offered by IBM with 320x200 pixels and 256 colours out of 256,000; or 640x480 pixels and two colours (black and white);
· the EGA (Enhanced Graphics Adapter) adapter offers 640x350 pixels with 16 colours out of 64;
· the VGA (Video Graphics Array) adapter is offered by IBM with 640x480 pixels with 16 colours out of 256,000 (262,144), or 64 grey shades on a mono display;
· the VGA8 adapter is offered by IBM with 360x480 pixels and 256 colours out of 256,000; it works on VGA display screens;
· the 8514/A adapter if offered by IBM with 640x480 and 256 colours, or 1024x768 and 256 colours when the application supports it;
· the XGA (Extended Graphics Adapter) adapter is offered by IBM with 1024x768 pixels and 256 colours out of 256,000;
· the SVGA (Super VGA) adapter is offered by all other manufacturers and works with 1024x768 pixels, with 256 colours.

Quality images recorded with a certain resolution can be converted by certain software into a lower resolution; the reverse is unfortunately not possible. Compatibility always exists downwards: a SVGA screen may show a VGA image, but the reverse is not possible.