Chapter

2. System

board features

 

 

 

 

 

 

 

 

 

Figure 4

(Page 3

of

3). Supported Enhanced VGA video modes

 

 

 

 

 

 

 

 

 

 

 

 

Mode (hex)

 

Display

Mode

 

Screen Resolution

 

Colors

 

Refresh Rate

 

 

 

 

 

 

 

 

 

(Hz)

 

 

 

 

 

 

 

 

 

117

 

Graphics

 

1024x768

 

16

 

60

 

 

 

 

 

 

 

 

 

117

 

Graphics

 

1024x768

 

16

 

70

 

 

 

 

 

 

 

 

 

117

 

Graphics

 

1024x768

 

16

 

72

 

 

 

 

 

 

 

 

 

117

 

Graphics

 

1024x768

 

16

 

75

 

 

 

 

 

 

 

 

 

117

 

Graphics

 

1024x768

 

16

 

85

 

 

 

 

 

 

 

 

 

118

 

Graphics

 

1024x768

 

24

 

60

 

 

 

 

 

 

 

 

 

118

 

Graphics

 

1024x768

 

24

 

70

 

 

 

 

 

 

 

 

 

118

 

Graphics

 

1024x768

 

24

 

72

 

 

 

 

 

 

 

 

 

118

 

Graphics

 

1024x768

 

24

 

75

 

 

 

 

 

 

 

 

 

118

 

Graphics

 

1024x768

 

24

 

85

 

 

 

 

 

 

 

 

 

119

 

Graphics

 

1280x1024

 

15

 

60

 

 

 

 

 

 

 

 

 

119

 

Graphics

 

1280x1024

 

15

 

75

 

 

 

 

 

 

 

 

 

119

 

Graphics

 

NS

 

 

 

85

 

 

 

 

 

 

 

 

 

11A

 

Graphics

 

1280x1024

 

16

 

60

 

 

 

 

 

 

 

 

 

11A

 

Graphics

 

1280x1024

 

16

 

70

 

 

 

 

 

 

 

 

 

11A

 

Graphics

 

1280x1024

 

16

 

72

 

 

 

 

 

 

 

 

 

11A

 

Graphics

 

1280x1024

 

16

 

75

 

 

 

 

 

 

 

 

 

11A

 

Graphics

 

1280x1024

 

16

 

85

 

 

 

 

 

 

 

 

 

11B

 

Graphics

 

1280x1024

 

24

 

60

 

 

 

 

 

 

 

 

 

11B

 

Graphics

 

1280x1024

 

24

 

70

 

 

 

 

 

 

 

 

 

11B

 

Graphics

 

1280x1024

 

24

 

72

 

 

 

 

 

 

 

 

 

11B

 

Graphics

 

1280x1024

 

24

 

75

 

 

 

 

 

 

 

 

 

11B

 

Graphics

 

1280x1024

 

24

 

85

 

 

 

 

 

 

 

 

 

 

 

Graphics

 

600X1200

 

8

 

60

 

 

 

 

 

 

 

 

 

 

 

Graphics

 

1600X1200

 

8

 

70

 

 

 

 

 

 

 

 

 

 

 

Graphics

 

1600X1200

 

8

 

72

 

 

 

 

 

 

 

 

 

 

 

Graphics

 

1600X1200

 

8

 

75

 

 

 

 

 

 

 

 

 

 

 

Graphics

 

1600X1200

 

8

 

85

 

 

 

 

 

 

 

 

 

 

 

Graphics

 

1600X1200

 

15

 

NS

 

 

 

 

 

 

 

 

 

 

 

Graphics

 

1600X1200

 

16

 

NS

 

 

 

 

 

 

 

 

 

 

Monitor support

The video subsystem provides a 15-pin monitor connector on the system board. For inform connector pin assignments, see Appendix A, “Connector pin assignments” on page 25.

Video memory

The video subsystem has 4MB of 100MHz SDRAM on the system board for 2D and 3D grap cache.

Chapter 2. System board features9

Page 17
Image 17
IBM 6278, 6288, 6268 manual Monitor support, Video memory

6278, 6268, 6288 specifications

The IBM 6278, 6288, and 6268 are part of IBM's extensive lineup of mid-range computers, specifically tailored for business environments in the late 1980s and early 1990s. These systems were designed to handle substantial data processing tasks, facilitating efficient business operations with robust performance and reliability.

The IBM 6278 was notable for its high-performance capabilities, making it suitable for a variety of applications ranging from transaction processing to complex computations. One of the main features of the 6278 was its multiprocessing capability, which allowed it to run multiple tasks concurrently. This was achieved through a combination of advanced hardware and software that optimized performance and resource allocation.

Similarly, the IBM 6288 was recognized for its versatility and scalability. This system incorporated enhanced memory management and was capable of handling larger workloads than its predecessors. The 6288 was designed with user-friendly interfaces and supported various input/output devices, making it easier for organizations to integrate into existing IT infrastructures. Additionally, it provided improved connectivity options, essential for modern networking needs at the time.

The IBM 6268, on the other hand, offered a balance between cost and performance, appealing to smaller businesses or those with less intensive data processing requirements. Despite being less powerful than the 6278 and 6288, the 6268 still managed to include essential features such as reliable data storage, effective processing speed, and compatibility with IBM's extensive software ecosystem.

All three models utilized IBM's proprietary operating systems, which were well-known for their robustness and security features. They were built with technologies such as error detection and correction, ensuring the integrity of data processing tasks. The architecture of these systems also allowed for easy upgrades, enabling businesses to expand their capabilities without a complete overhaul of their IT infrastructure.

In summary, the IBM 6278, 6288, and 6268 represented a significant advancement in mid-range computing technology during their era. Their main features encompassed multiprocessing, scalability, and user-friendly interfaces, making them valuable assets for businesses seeking reliable and efficient computing solutions. These systems laid the groundwork for future innovations in business computing, and despite their age, they remain a significant part of IBM's legacy in the computing industry.