MAINTENANCE & SERVICE GUIDE

PROSIGNIA NOTEBOOK 190

INDEX PAGE

PRODUCT DESCRIPTION

LEGAL NOTICE

HOW TO USE THIS GUIDE

REMOVAL & REPLACEMENT

ILLUSTRATED PARTS CATALOG

TROUBLESHOOTING

SPECIFICATIONS

>Physical & Environmental

>Display >Hard Drives

>CD/DVD Drives

>Diskette Drive

>Battery Pack >Modem

>System Memory

>System Interrupts

>System DMA

>System I/O

>Pin Assignments

 

Specifications

 

System I/O Address

I/O

System Function

Address

(Shipping Configuration)

(Hex)

 

000 - 00F

DMA Controller no. 1

010 - 01F

Unused

020 - 021

Interrupt Controller no. 1

022 - 024

Chipset Configuration registers

025 - 03F

Unused

02E - 02F

87334 "Super IO" configuration for

040 - 043

CPU

044 - 05F

Counter/Timer Registers

060

Unused

061Keyboard Controller 062 - 063 Port B

064Unused

065 - 06F Keyboard Controller

070 - 071 Unused

072 - 07F NMI Enable/Real Time Clock

080 - 08F Unused

090 - 091 DMA Page Registers

092Unused 093 - 09F Port A

0A0 - 0A1 Unused

0A2 - 0BF Interrupt Controller no. 2

0C0 - 0DF Unused

0E0 - 0EF DMA Controller no. 2

0F0 - 0F1 Unused

0F2 - 0FF Coprocessor Busy Clear/Reset

100 - 16F Unused

170 - 177 Unused

178 - 1EF Secondary Fixed Disk Controller

1F0 - 1F7 Unused

1F8 - 200 Primary Fixed Disk Controller

201Unused

202 - 21F JoyStick (Decoded in ESS1688)

220 - 22F Unused

230 - 26D Entertainment Audio

26E - 26 Unused

National 87334 "Super IO" Controller

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Image 29
Compaq 190 manual System I/O Address, Shipping Configuration

190 specifications

The Compaq 190, a significant player in the evolution of portable computing, was unveiled in the early 1990s at a time when the demand for mobility in technology was surging. As a member of Compaq's renowned line of portable PCs, the Compaq 190 was a bridge between desktop power and laptop convenience, offering an impressive array of features and technologies that appealed to both business professionals and technology enthusiasts.

One of the main features of the Compaq 190 was its compact size. Weighing under 10 pounds, it was designed for easy transport, allowing users to work remotely without sacrificing performance. The device was equipped with a 10.4-inch LCD display, providing a balance between portability and screen real estate. This display was notable for its clarity, allowing users to engage with applications effectively, whether in an office setting or on the go.

Under the hood, the Compaq 190 was powered by an Intel CPU, commonly featuring early generations of the Intel 386 processor. This gave the laptop the capability to run various software applications efficiently, making it suitable for word processing, spreadsheets, and basic graphical tasks. Furthermore, the inclusion of a built-in hard drive, typically around 40 MB, provided ample storage for documents and applications of that era.

In terms of connectivity, the Compaq 190 was equipped with standard ports of the time, including serial and parallel ports, allowing users to connect external devices such as printers and modems. The addition of a PCMCIA slot supported expansion, enabling users to enhance functionality with network cards, additional storage, or even modems for internet connectivity.

Battery life was another essential characteristic of the Compaq 190, with options available for extended use. Users could expect several hours of operation away from an electrical outlet, a crucial feature for professionals frequently traveling for work.

Overall, the Compaq 190 represented a pivotal moment in portable computing technology. With its combination of portability, processing power, and essential features, it offered solutions for a generation that valued both functionality and mobility. The legacy of the Compaq 190 continues to influence the design and capabilities of modern laptops, reminding us of the early advancements that paved the way for today’s computing devices.