Chapter 2. System board features

The PC 300GL supports the following video subsystem modes:

Figure 3.

Supported VGA video modes

 

 

 

 

 

 

 

 

 

 

 

 

 

Mode (hex)

 

Display Mode

Screen

 

Resolution

Colors

Refresh Rate

 

 

 

 

 

 

 

 

 

 

(Hz)

 

 

 

 

 

 

 

 

 

 

00

 

Text

40

x

25

 

characters

B/W

70

 

 

 

 

 

 

 

 

 

 

01

 

Text

40

x

25

 

characters

16

70

 

 

 

 

 

 

 

 

 

02

 

Text

80

x

25

characters

B/W

70

 

 

 

 

 

 

 

 

 

03

 

Text

80

x

25

characters

16

70

 

 

 

 

 

 

 

 

 

04

 

Graphics

320

x

200

pixels

4

70

 

 

 

 

 

 

 

 

 

05

 

Graphics

320

x

200

pixels

4

70

 

 

 

 

 

 

 

 

 

 

 

06

 

Text

640

 

x

200

 

pixels

2

70

 

 

 

 

 

 

 

 

 

07

 

Text

80

x

25

characters

Mono

70

 

 

 

 

 

 

 

 

 

0D

 

Graphics

320

x

200

pixels

16

70

 

 

 

 

 

 

 

 

 

 

 

0E

 

Graphics

640

 

x

200

 

pixels

16

70

 

 

 

 

 

 

 

 

 

 

 

0F

 

Graphics

640

 

x

350

 

pixels

Mono

70

 

 

 

 

 

 

 

 

 

 

 

10

 

Graphics

640

 

x

350

 

pixels

16

70

 

 

 

 

 

 

 

 

 

 

 

11

 

Graphics

640

 

x

480

 

pixels

2

60

 

 

 

 

 

 

 

 

 

 

 

12

 

Graphics

640

 

x

480

 

pixels

16

60

 

 

 

 

 

 

 

 

 

13

 

Graphics

320

x

200

pixels

256

70

 

 

 

 

 

 

 

 

 

 

 

Figure 4

(Page 1

of

3). Supported Enhanced VGA video modes

 

 

 

 

 

 

 

 

 

Mode (hex)

 

Display

Mode

 

Screen Resolution

Colors

Refresh Rate

 

 

 

 

 

 

 

(Hz)

 

 

 

 

 

 

 

100

 

Graphics

 

640x400

8

70

 

 

 

 

 

 

 

101

 

Graphics

 

640x480

8

60

 

 

 

 

 

 

 

101

 

Graphics

 

640x480

8

70

 

 

 

 

 

 

 

101

 

Graphics

 

640x480

8

72

 

 

 

 

 

 

 

101

 

Graphics

 

640x480

8

75

 

 

 

 

 

 

 

101

 

Graphics

 

640x480

8

85

 

 

 

 

 

 

 

102

 

Graphics

 

800x600

4

60

 

 

 

 

 

 

 

102

 

Graphics

 

800x600

4

72

 

 

 

 

 

 

 

102

 

Graphics

 

800x600

4

75

 

 

 

 

 

 

 

102

 

Graphics

 

800x600

4

85

 

 

 

 

 

 

 

103

 

Graphics

 

800x600

8

60

 

 

 

 

 

 

 

103

 

Graphics

 

800x600

8

70

 

 

 

 

 

 

 

103

 

Graphics

 

800x600

8

75

 

 

 

 

 

 

 

103

 

Graphics

 

800x600

8

85

 

 

 

 

 

 

 

105

 

Graphics

 

1024x768

8

60

 

 

 

 

 

 

 

105

 

Graphics

 

1024x768

8

70

 

 

 

 

 

 

 

105

 

Graphics

 

1024x768

8

75

 

 

 

 

 

 

 

105

 

Graphics

 

1024x768

8

85

 

 

 

 

 

 

 

107

 

Graphics

 

1280x1024

8

60

 

 

 

 

 

 

 

107

 

Graphics

 

1280x1024

8

70

 

 

 

 

 

 

 

107

 

Graphics

 

1280x1024

8

72

 

 

 

 

 

 

 

 

Chapter 2. System board features7

Page 15
Image 15
IBM 6288, 6268, 6278 manual PC 300GL supports the following video subsystem modes, Supported VGA video modes

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.