System I/O address specifications

I/O address (hex)

System function (shipping configuration)

 

 

 

000

- 00F

DMA controller no. 1

 

 

 

010

- 01F

Unused

 

 

 

020

- 021

Interrupt controller no. 1

 

 

 

022

- 024

Opti chipset configuration registers

 

 

 

025

- 03F

Unused

 

 

02E - 02F

87334 “Super I/O” configuration for CPU

 

 

 

040

- 05F

Counter/timer registers

 

 

 

044

- 05F

Unused

 

 

 

060

 

Keyboard controller

 

 

 

061

 

Port B

 

 

 

062

- 063

Unused

 

 

 

064

 

Keyboard controller

 

 

 

065

- 06F

Unused

 

 

 

070

- 071

NMI enable/RTC

 

 

 

072

- 07F

Unused

 

 

 

080

- 08F

DMA page registers

 

 

 

090

- 091

Unused

 

 

 

092

 

Port A

 

 

 

093

- 09F

Unused

 

 

0A0 - 0A1

Interrupt controller no. 2

 

 

I/O Address (hex)

System Function (shipping configuration)

 

 

0A2 - 0BF

Unused

 

 

0C0 - 0DF

DMA controller no. 2

 

 

0E0 - 0EF

Unused

 

 

0F0 - 0F1

Coprocessor busy clear/reset

 

 

0F2 - 0FF

Unused

 

 

 

100

- 16F

Unused

 

 

 

170

- 177

Secondary fixed disk controller

 

 

 

178

- 1EF

Unused

 

 

1F0 - 1F7

Primary fixed disk controller

 

 

1F8 - 200

Unused

 

 

 

201

 

JoyStick (decoded in ESS1688)

 

 

 

202

- 21F

Unused

 

 

 

100 Chapter 6 Specifications

Page 108
Image 108
HP CQ50-113CA, CQ50-217CL, CQ50-225LA System I/O address specifications, Address hex System function shipping configuration

CQ50-107NR, CQ50-105AU, CQ50-108AU, CQ50-142US, CQ50-103AU specifications

The HP CQ50 series is a line of laptops designed to provide a balance of performance, features, and affordability. The models under this series, including the CQ50-210US, CQ50-116AU, CQ50-108NR, CQ50-139NR, and CQ50-117AU, are well-regarded for their dependable performance and user-friendly design, making them suitable for both everyday users and professionals.

One of the standout features of these laptops is their display quality. Most models are equipped with a 15.4-inch widescreen display, which is perfect for both multimedia consumption and productivity tasks. The resolution typically ranges from 1280x800 pixels, offering decent clarity for tasks such as browsing, watching videos, or working on presentations.

Performance-wise, the CQ50 series integrates various Intel processors, including options from the Pentium and Core 2 Duo families, providing sufficient power for daily computing needs. These processors ensure that users can run multiple applications without significant lag, making multitasking more efficient. Furthermore, the laptops come with a standard RAM configuration of up to 4GB, supporting smoother performance for general applications, web browsing, and light gaming.

In terms of storage, the CQ50 series offers hard drive configurations typically ranging from 160GB to 250GB, allowing ample space for users to store their files, media, and applications. This capacity is adequate for users who do not require extensive storage or operate with cloud solutions.

Connectivity is another key aspect of these laptops. The CQ50 series includes multiple USB ports, a built-in card reader, and options for HDMI output, ensuring users can connect various peripherals with ease. The inclusion of Wi-Fi and Ethernet capabilities enhances the laptops’ utility for internet connectivity, catering to both home and office environments.

Design-wise, the CQ50 series features a comfortable keyboard and a responsive touchpad, making it easy for users to navigate and type for extended periods. The overall build quality strikes a balance between portability and sturdiness, allowing for daily use without fear of damage.

With battery life typically lasting around 3 to 4 hours, these laptops are suitable for users on-the-go, although they may require access to power outlets for extended usage. The HP CQ50 series is a reliable choice for those seeking an entry-level laptop for basic computing tasks, offering a solid mix of performance, connectivity, and usability.