. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.11 System I/O Address

 

 

Table 6-20

 

 

 

 

 

I/O Address (Hex)

System Function (Shipping Configuration)

 

 

 

 

000

- 00F

Master DMA Controller # 1

 

 

 

 

010

- 011

Force Software SMI

 

 

 

 

012

- 01F

Unused

 

 

 

 

020

- 021

Peripheral Interrupt Controller # 1

 

 

 

 

022

- 024

Opti Chipset Configuration Registers

 

 

 

 

025

- 03F

Unused

 

 

 

 

040

- 043

Counter/Timer Registers

 

 

 

 

044

- 05F

Unused

 

 

 

 

060

 

Keyboard Data

 

 

 

 

061

 

Port B

 

 

 

 

062

- 063

Unused

 

064

 

Keyboard Command/Status

 

 

 

 

065

- 06F

Unused

 

 

 

 

070

 

CMOS Index Address

 

 

 

 

071

 

CMOS Data

 

 

 

 

072

- 073

Unused

 

 

 

 

074

 

Reserved

 

 

 

 

075

 

Unused

 

 

 

 

076

 

Reserved

 

 

 

 

077

- 077F

Unused

 

 

 

 

080

- 08F

DMA Page Registers

 

 

 

 

084

- 085

POST Code Output Port

 

 

 

 

090

- 091

Unused

 

 

 

 

092

 

Fast Reset Register

 

 

 

 

093

- 09F

Unused

 

 

 

0A0 - 0A1

Interrupt Controller # 2

 

 

 

0A2 - 0BF

Unused

 

 

 

0C0 - 0DF

DMA Controller # 2

 

 

 

0E0 - 0E1

ESS Audio Configuration

 

 

 

0E2 - 0E5

Configuration Registers

 

 

 

0E6 - 0EF

Unused

 

 

 

0F0 - 0F1

NCP Numerics Register

 

 

 

 

0F9

 

ESS Configuration Lock

 

 

 

 

0FA

 

Unused

 

 

 

 

0FB

 

ESS Configuration Unlock

 

 

 

0FC - 0FF

Unused

 

 

 

 

100

- 101

Unused

 

 

 

 

103

- 16F

Unused

 

 

 

 

Continued

6-20 Specifications

Page 176
Image 176
Compaq 4160T SLIMLINE, 4130T, 4150T, 4140T, 4131T, 4200 System I/O Address, Address Hex System Function Shipping Configuration

4130T, 4200, 4115, 4150, 4131T specifications

The Compaq 4160T Slimline, along with its variants – 4125D, 4150, 4120T, and 4150T – represents a series of personal computers that were engineered during the early 1990s. These systems were particularly popular for their compact design and efficient performance, catering to both individual users and businesses seeking reliable computing solutions.

The Compaq 4160T Slimline was designed with portability in mind. It featured a slim form factor that allowed it to fit easily into limited spaces, making it an ideal choice for environments where desk space was at a premium. One of the standout characteristics of the 4160T was its lightweight design, which aided in ease of transport.

The 4125D variant was notable for its robust performance capabilities. It utilized an Intel 486 processor, which provided enhanced processing power for multitasking and running memory-intensive applications. The system came equipped with an array of RAM options and upgradable storage, making it adaptable to various user needs.

The Compaq 4150 and 4150T models built upon the strong foundation of their predecessors, offering improved specifications. These models supported a greater range of peripheral devices, including external drives, printers, and modems, thanks to their extensive connectivity options. The 4150T further featured advanced graphics capabilities, making it suitable for light gaming and multimedia tasks.

The 4120T targeted users who prioritized a balance between performance and cost. With its value-driven design, this model provided essential computing features and was often utilized in educational settings and small offices. Its reliability and ease of use made it a favored choice for individuals who required straightforward functionality.

All models in this series showcased Compaq's commitment to innovation, featuring technologies such as integrated memory management and support for DOS-based applications. Additionally, the systems were equipped with customizable options, allowing users to choose specific configurations that best suited their unique requirements.

In summary, the Compaq 4160T Slimline and its counterparts presented a solution that combined compact design with practical performance. Their legacy continues to remind us of the evolution of personal computing and the foundational role that systems like these played in the development of modern PCs. These models represented a bridge between earlier computing technology and the more sophisticated devices that followed, paving the way for advancements in the industry.