Manuals / HP / Computer Equipment / Laptop

HP 1242, 1234 manual System Interrupts, Hardware IRQ System Function

Models: 1242 1234

1 88
Download 88 pages 41.18 Kb
Page 82
Image 82

Nonoperating

1.5 G

NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. Compaq Presario 1200 Series Portable Computers operate well within this range of temperatures.

System Interrupts

 

System Interrupts

Hardware IRQ

System Function

IRQ0

Timer Interrupt

IRQ1

Standard 101/102-Key or Microsoft Natural

 

Keyboard

IRQ2

Programmable interrupt controller

IRQ3

Compaq Presario 56K-DF

IRQ4

Communications Port (COM1)

IRQ5

ES1869 Plug and Play AudioDrive

IRQ6

Standard Floppy Disk Controller

IRQ7

Printer Port (LPT1)

IRQ8

System CMOS/real time clock

IRQ9

(free)

IRQ10

OPTi 82C861 PCI to USB Open Host Controller

IRQ10

IRQ Holder for PCI Steering

IRQ11

IRQ Holder for PCI Steering

IRQ11

IRQ Holder for PCI Steering

IRQ11

NeoMagic MagicGraph 128XD

IRQ11

Texas Instruments PCI-1131 CardBus Controller

IRQ11

Texas Instruments PCI-1131 CardBus Controller

IRQ12

Synaptics PS/2 TouchPad

IRQ13

Numeric data processor

IRQ14

Primary IDE controller (dual fifo)

IRQ14

Opti Viper Max Dual PCI IDE Controller

IRQ15

Secondary IDE controller (dual fifo)

IRQ15

Opti Viper Max Dual PCI IDE Controller

System DMA

Page 81 Page 83
Page 82
Image 82
HP 1242, 1234 manual System Interrupts, Hardware IRQ System Function
Page 81 Page 83

1242, 1234 specifications

The HP 1234 and HP 1242 are two impressive devices from Hewlett-Packard, designed primarily for home and small office users who need reliable printing solutions that combine efficiency with high-quality performance. Both models are tailored to meet modern printing demands, offering a variety of features and technologies that enhance usability and productivity.

One of the standout features of the HP 1234 is its compact design, making it an excellent choice for users with limited workspace. Despite its small footprint, this printer boasts a robust set of functionalities. It supports wireless connectivity, allowing users to print from their smartphones, tablets, and laptops without the hassle of tangled cables. The setup is straightforward, making it easy for even the most tech-challenged individuals to get started.

The HP 1242 expands upon this by incorporating additional features suited for higher volume printing tasks. It includes automatic duplex printing, enabling users to print double-sided documents effortlessly, which helps save both paper and costs. Both models support a range of media types, including glossy photo paper and envelopes, making them versatile for various printing needs.

In terms of print quality, the HP 1234 and 1242 employ advanced inkjet technology that produces sharp text and vibrant images. The color accuracy and detail provided by these printers make them suitable for printing everything from professional documents to high-resolution photos. With print speeds of up to 20 pages per minute for black and white documents, both models are designed for efficiency, helping users complete their tasks quickly.

Moreover, the HP Smart App enhances the printing experience, offering users the ability to manage print jobs, scan documents, and even order supplies directly from their devices. This innovation simplifies the entire printing process, adding to the overall user-friendliness of both models.

Energy efficiency is another characteristic that sets the HP 1234 and 1242 apart. They are designed to minimize power consumption, making them environmentally friendly options for consumers who wish to reduce their carbon footprint.

In summary, the HP 1234 and 1242 printers exemplify HP's commitment to providing efficient, high-quality printing solutions. With their compact designs, wireless capabilities, advanced inkjet technology, and user-friendly features, they are ideal choices for home and small office use, effectively meeting a variety of printing needs while remaining economically and environmentally efficient.