Compaq 1220 manual Installation of USB Function

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3.4Installation of USB Function

The following procedure permits your computer to recog- nize or "enumerate"(A USB term) the USB HUB.

1.Power on the display monitor and then the com- puter.

2.Start "Enumeration" from the Windows® Desktop.

During the enumeration of USB Hub, connect the key- board and mouse, to the computer and not to the down- stream ports on the display monitor. After the enumera- tion, the keyboard and mouse can be used by connecting to the downstream ports, if they are USB-compliant.

Do not unplug the USB cable during the enumerations.

(1)Connect the computer and the display monitor with the included USB cable. Figure 7 will appear.

(2)Click “Next” on Figure 7 to get Figure 8.

(3)Click “Finish” on Figure 8 to complete the enumeration of USB HUB.

Figure 7

Figure 8

You can confirm that the USB HUB is successfully enumer- ated with the following method.

Open “Device Manager” tab in “System” property under “Control Panel”. Confirm that “Generic USB HUB” is listed in “Universal Serial Bus Controller”. If you can’t confirm it, re-enumerate the USB HUB again by following (a) or (b).

(a)Disconnect and connect the USB cable to the upstream port of the display monitor.

(b)Cycle power of the display monitor off then on.

If the ! mark appears with “Generic USB HUB”, then enumeration was unsuccessful. Select “Generic USB HUB” marked with ! mark and click “Remove” and “Refresh”. After that, the enumeration is automatically started.

The enumeration of USB HUB may be necessary for each USB port on the computer.

Figure 9

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Contents Compaq P1220 Modifications JapaneseNotice EPAEnergyStarCompliance Contents Introduction FeaturesDDC Internal Preset Memory CapabilityPower Management Function Cleaning Your MonitorCD-ROM Quick Operation ChartScreen Position Adjustment UnpackingFunction Part NameControl Names Connection to VGA Compatible System Installation and ConnectionAC Power Connection Signal Cable ConnectionUSB System Basic Application Connecting to Two ComputersInstallation of USB Function Functions How to adjust the screenAdjustment Items Page Problem Self Diagno Specifications Mounted on the Rear Panel Monitor Signal Input Connector DB9-15PSignal Cable Appendix

1220 specifications

The Compaq 1220 is a notable entry in the realm of portable computing, representing a significant evolution in laptop design and functionality during its time. Launched in the early 1990s, this model stands out for its blend of portability, performance, and user-friendly features, which catered to both business professionals and everyday consumers.

One of the key features of the Compaq 1220 is its compact size, which distinguished it from bulkier contemporaries. Weighing in at approximately 5.6 pounds, it was designed to be easily transported, making it an attractive option for users who required computing power on the go. Its dimensions, along with its relatively lightweight chassis, facilitated easy handling and travel, aligning perfectly with the growing demand for mobile computing solutions.

Equipped with a high-resolution color LCD screen, the Compaq 1220 offered enhanced visual clarity, allowing users to engage with their applications and content with improved detail and vibrancy. The display technology was a significant advancement at the time and contributed to a more immersive user experience, whether for professional presentations or casual media consumption.

In terms of performance, the Compaq 1220 featured an Intel 486 processor, which provided the necessary computing power for running various applications, from word processing to spreadsheet management. It also included a sufficient amount of RAM, ensuring smooth multitasking capabilities. The inclusion of a hard drive offered ample storage space for documents and files, a crucial aspect for business users who relied on their laptops for storing important data.

Another noteworthy aspect of the Compaq 1220 was its battery life. The laptop was engineered to offer several hours of usage on a single charge, enabling users to work remotely without the constant worry of needing a power source. This feature was especially appreciated in an era where power outlets were not as prevalent in public spaces.

Connectivity was made possible through various ports and expansion slots, allowing for compatibility with printers, external drives, and other peripherals. This versatility made the Compaq 1220 a functional tool for various tasks, from office work to creative projects.

Overall, the Compaq 1220 exemplified the transition towards more portable and powerful computing, laying the groundwork for future innovations in laptop technology. Its combination of lightweight design, enhanced display, robust performance, and reliable battery life made it a memorable model in the evolution of personal computing.