HP 1000 System DMA specifications, System interrupt specifications, Hardware DMA System function

Models: 1000

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System DMA specifications

Hardware DMA

System function

 

 

DMA0

Not applicable

 

 

DMA1*

Not applicable

 

 

DMA2*

Not applicable

 

 

DMA3

Not applicable

 

 

DMA4

Direct memory access controller

 

 

System interrupt specifications

Hardware IRQ

System function

 

 

IRQ0

System timer

 

 

IRQ1

Standard 101-/102-Key or Microsoft® Natural PS/2 Keyboard

 

 

IRQ8

System CMOS/real-time clock

 

 

IRQ9*

Microsoft ACPI-compliant system

 

 

IRQ12

Synaptics PS/2 TouchPad

 

 

IRQ13

Numeric data processor

 

 

IRQ14

Primary IDE channel

 

 

IRQ15

Intel® 82801G (ICH7 Family) SMBus Controller—27DA

 

 

IRQ16

Broadcom 802.11b/g WLAN no. 2

 

Intel 82801G (ICH7 Family) PCI Express Root Port—27D0

 

Intel 82801G (ICH7 Family) USB Universal Host Controller—27CB

 

Microsoft UAA Bus Driver for High Definition Audio

 

Mobile Intel 945 Express Chipset Family

 

 

IRQ17

Intel 82801G (ICH7 Family) PCI Express Root Port—27D2

 

 

IRQ18

Intel 82801G (ICH7 Family) USB Universal Host Controller—27CA

 

 

IRQ19

Intel 82801G (ICH7 Family) USB Universal Host Controller—27C9

 

 

IRQ23

Intel 82801G (ICH7 Family) USB Universal Host Controller—27C8

 

Intel 82801G (ICH7 Family) USB2 Enhanced Host Controller—27CC

 

 

*Default configuration

 

 

 

System DMA specifications 65

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HP 1000 manual System DMA specifications, System interrupt specifications, Hardware DMA System function

1000 specifications

The HP 1000 was a series of minicomputers produced by Hewlett-Packard from the early 1970s through the late 1980s. Originally introduced in 1973, the HP 1000 aimed to provide high-performance computing capabilities within the reach of small to medium-sized businesses and specialized industries. This machine was distinctive not only for its advanced technology but also for the versatility it offered in various applications.

One of the standout features of the HP 1000 was its architecture. The system utilized a 16-bit word size, which allowed for efficient processing and execution of instructions. The HP 1000 employed a unique architecture known as the "Hewlett-Packard 1000 Microprogrammed System," which enabled it to execute a broad range of instructions efficiently. This made the HP 1000 particularly well-suited for data processing applications, scientific calculations, and high-level computing tasks.

The HP 1000 series was fully modular, allowing users to customize and expand their systems as needed. It supported various input/output devices, memory sizes, and even offered options for solid-state disk drives, which were cutting-edge for that time. The system’s modularity not only provided flexibility but also enhanced maintainability, enabling users to swap out components without significant downtime.

Another key aspect of the HP 1000 was its support for a wide range of programming languages, including FORTRAN, COBOL, and BASIC. This made it appealing to a variety of users, from engineers who needed to perform complex calculations to business analysts focused on data management. Additionally, the HP 1000 was designed to run multiple jobs simultaneously, making it a precursor to modern multitasking operating systems.

Networking capabilities were also an essential characteristic of the HP 1000. The system could be connected to various peripherals and terminals, increasing its functionality in a networked environment. This helped businesses leverage the power of shared resources, facilitating collaborative projects and data sharing across departments.

In conclusion, the HP 1000 series played a significant role in the evolution of computing technology. Its modular design, robust architecture, support for multiple programming languages, and networking capabilities made it a versatile tool for a wide range of applications. For over a decade, the HP 1000 series marked an important chapter in the history of computing, laying the groundwork for advancements in minicomputer technology that would follow.