NEC 128 manual Desktop PC, Also available with control software

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Application Configurations 2-5

Desktop PC

also available with control software

The VisuaLink Desktop PC application configuration provides a business solution for videoconferencing at the individual desktop. Desktop PC components install and work with a user’s desktop PC system. It includes everything necessary for high quality videoconferencing from the desktop.

Videoconferencing is no longer limited to fixed installations in a corner meeting room.The Desktop PC can easily be installed at a individual desktop PC or workstation. Quick connections and software make for ease of use.

VisuaLink Desktop PC could be installed on a key manager’s or selected personnel workstations for business unit, production control, quality, marketing/sales, and human resources as examples. This would allow these key managers and select personnel to participate easily in videoconferencing from their own desktop.

With the complexity of today’s projects, rising costs, remote subcontractor supervision, and global locations-- VisuaLink Desktop PC can save time, travel expense, and promote better business-to- business communication.

Desktop PC

CCD Desktop

Video Camera

Desktop Microphone

Video Capture Board

 

POWER

 

 

HEADSET

 

 

POWER

LINE

 

 

 

 

B1 B2-B6

 

 

 

 

 

 

 

VisuaLink 128/VisuaLink 384

Desktop Personal Computer (PC)

VisuaLink 128/384 General Description

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Contents VisuaLink 128/384 NDA-24229, IssueLiability Disclaimer Contents Specifications Overview IntroductionFeatures Phone-Like Dialing Echo CancellerCamera Control Videoconferencing CompliancePBX Connectivity Field UpgradableApplications Isdn BRI VisuaLink Documentation Introduction VisuaLink 128/384 General Description Roll-About Desktop PC Gateway Application ConfigurationsEasily moved, use in active locations Roll-AboutVideo Cabinet Roll-About ComponentsVisuaLink 128/384 Video MonitorMicrophone Motion Video CameraCable Kit OptionsAlso available with control software Desktop PCCCD Desktop Camera Desktop PC ComponentsVideo Capture Board NT1 Graphics Camera D30 Camera AT841/INT Microphone VisuaLink Director SoftwareLaptop PC option Personal Computer RequirementsVisuaLink & ViewPoint VBX Gateway GatewayVisuaLink Direct Connect Gateway System Control Technical DescriptionVideo & Audio Interfaces Echo CancellerCodec VideoLine Interface System ControlVideo Frame Rate Picture ResolutionMore on H.320 Videoconferencing Audio Video ProcessingData Transmission Rate For ExampleTechnical Description VisuaLink 128/384 General Description Installation Requirements Installation & MaintenanceMaintenance Requirements General Specifications SpecificationsPage General Parameters Parameter VisuaLinkUnit Size Line Interface External Interface ParametersSerial VisuaLink Unit Control Operating Modes & FeaturesCall Dialing Originating Modes Incoming Call Answer ModesLine Connect Modes Line Interface ControlVideo Display/Output Modes Audio Control ModesMulti-Point Conference Control MaintenanceSerial Port Modes VisuaLink 128/384 General Description

128 specifications

The NEC 128 is a remarkable microprocessor that represents a significant leap in technological innovation during its time. Introduced in the early 1980s, this processor was designed to meet the demands of increasingly sophisticated computing tasks, primarily aimed at the burgeoning field of personal computing and embedded systems.

One of the standout features of the NEC 128 is its 16-bit architecture, which was quite advanced for its era. This architecture allows for a greater data throughput, enabling the handling of larger data sets and providing improved performance over its predecessors. The NEC 128 operates on a clock speed that typically ranges from 4 to 8 MHz, making it capable of executing instructions efficiently and swiftly, which was crucial for running more complex applications.

The processor is built using CMOS technology, which offers significant advantages in terms of power consumption compared to earlier bipolar technology. This characteristic made the NEC 128 not only suitable for desktop computing but also an appealing choice for battery-operated devices, enhancing its versatility. The use of CMOS allowed for a reduced heat output, contributing to the reliability and longevity of devices powered by this microprocessor.

Another noteworthy aspect of the NEC 128 is its support for a variety of addressing modes. This flexibility enables programmers to write more efficient and compact code, optimizing the use of memory resources. By supporting both immediate and indirect addressing, the NEC 128 allows for more dynamic programming, which is essential for developing applications that require real-time processing.

The processor's architecture also includes a robust instruction set that facilitates arithmetic operations, logical operations, and control flow management. This comprehensive instruction set is instrumental for developers, as it provides the necessary tools for creating a wide range of applications, from simple utilities to more complex software systems.

In summary, the NEC 128 microprocessor is characterized by its 16-bit architecture, efficient CMOS technology, and a versatile instruction set, making it a compelling choice for its era. Its combination of performance, power efficiency, and flexibility positioned it as a formidable player in the personal computing market and laid the groundwork for future advancements in microprocessor technology. With its various applications and features, the NEC 128 remains a noteworthy chapter in the history of computing.