DESCRIPTION Apollo Computer's DN300 Desktop Computational Node places mid-ran ge 32-bit supermini performance on every user's desk. In a single, package, it delivers virtual memory capability, up to 1.5 Mbytes of main memory, high-performance graphics (1024 x 800 pixels), and access to the 12 Mbit per second DOMAIN local-area network. The DOMAIN system is a high-performance local-area network of dedicated computers operating in a distributed environment. Computational Nodes are connected together using commonly available, high-bandwidth coaxial cable organized in a ring topology. This network is the mechanism that allows system-level hardware and software resources to be shared throughout the DOMAIN system. By itself, the DN300 is a powerful workstation designed to expand the productivity and creativity of an individual technical professional. The DN300 can also become part of a larger, shared- resource computing environment as one of many Computational Nodes connected together by the DOMAIN network. DN300 FEATURES * Complete virtual memory computer system on every technical professional's desk. * Dedicated 32-bit VLSI processor. * 16 Mbytes virtual address space per process, up to 15 concurrent processes per node. * .5 to 1.5 Mbytes main memory. * 12 Mbit per second local-area network. * Network-wide virtual memory operating system. * Compatibility with all members of the DOMAIN processing family. * 1024 x 800 pixel, high-resolution, bit-mapped graphics display. * Detachable, low-profile keyboard. * Two asynchronous serial I/O parts. NETWORK-LEVEL COMPATIBILITY The DN300 provides network-level compatibility with all existing DN660, and DN460 Computational Nodes. Network-level comp atibility ensures that programs written and stored anywhere in a DOMAIN network may be directly executed on any Node connected to that network via demand paging - without recompilation, rebinding, *r file copying. An extension beyond the processor-level compat ibility offered by conventional timesharing systems, network-level compatibility means that new Nodes become part of an existing DOMAIN system by simply plugging them into the network. DOMAIN SYSTEM COMPATIBILITY Like all DOMAIN Computational Nodes, the DN300 accesses resources such as high-speed printers, communictions gateways, magnetic tape units, and online mass storage devices that are distributed across the network. In addition, the DN300 communicates with users' peri pheral equipment attached to the network by the DSP80 DOMAIN Server Processor. And the DN300 supports the same multi-programming envir onment, large virtual address space, network communications, multi- window display management, and extensive command library as other DOMAIN family members. Every DOMAIN computational node runs under Apollo's AEGIS, the network-wide virtual memory operating system. DOMAIN processing under AEGIS extends demand paging across the network so that users have easy access to information located anywhere in the network, at a rate comparable to that of locally attached disk access. AEGIS compatibility also extends to optional software, such as FORTRAN-77, PASCAL, and C programming languages, D3M (DOMAIN Distributed Data Mangement), the DOMAIN X.25 communications gateway, the SIGGRAPH Core graphics library and AUX, a software environment based on UNIX* System III. PROFESSIONAL PRODUCTIVITY NETWORK The DN300 and the other user-dedicated DOMAIN nodes put technical professionals in complete control of their time, resources, and design options. The DN660 Color Node is ideally suited to solids modelling, VLSI CAD, finite element analysis pre and post-processing, high-quality presentation graphics, 3-D drafting, and image analysis, and can serve as a full-function CAE workstation. Where color is not a requirement, the DN460 supports the same applications with its monochrome display. The DN300 economically extends DOMAIN processing to applications such as computer-aided software engineering (CASE), design documentation, engineering and manufacturing database management, drafting, and electrical design capture. What ever the task - electrical/electronic engineering, mechanical engineering, architectural/engineering/construction, or CASE - the DOMAIN network lets each user select the right tool for the job, let's all users work as a team. SYSTEM ARCHITECTURE CPU AND MEMORY MANAGEMENT UNIT * Based on an advanced 32-bit VLSI processor with integral page fault hardware. * 16 Mbyte virtual process address space. * 15 concurrent processes per DN300. * MMU dynamically maps 24-bit virtual addresses into a 22-bit physical memory address space. * MMU maintains protection and usage statistics for each page of memory. * Page size is 1024 bytes. MAIN MEMORY * Expandable from .5 to 1.5 Mbytes in .5 Mbyte increments. * Based on 64 Kbut RAMs. * Parity protected. DISPLAY * Landscape-oriented, 17" diagonal, black & white monitor. * Raster-scanned bit map technology. * Interlaced refresh at 80HZ using a dedicated, 128 Kbyte, dual- ported display memory. * Resolution of 1024 x 800 pixels. * 12 Mbit per second bit block transfer hardware. DOMAIN NETWORK INTERFACE * 12 Mbit per second baseband data rate using self-synchronizing, hardware bit-stuffing techniques. * Ring topology with token-passing aarbitration. * Two-address packets, plus broadcast capability. * Up to 3280 feet (1000 meters) separation between active Nodes; inactive Nodes bypassed to maintain network continuity. * Uses commonly available RG6/U 75-ohm coaxial cable with BNC-style twist-lock connectors. SERIAL I/O PORTS * Two separate RS-232C ports. * Independent, software-selectable speeds from 50 through 19.2K baud. * X-ON/X-OFF transmission control capability. * Software support for personal peripherals, such as graphic tablets and letter-quality printers. KEYBOARD * Low-profile, lightweight enclosure. * 32 software programmable keys. * Optional touchpad or mouse locating device allows easy cursor positioning. * Integral microprocessor provides shiftlock, auto-repeat, and n-key rollover. * Serial interface operates at 1200 baud. * Detachable coiled cord stretchs up to 3.3 feet (1 meter). DN300 LOCAL STORAGE OPTIONS Local Winchester and floppy disk drives can be directly connected to the DN300. Or, the DN300 can operate without local disks, by sharing the pool of mass storage available on the DOMAIN network. WINCHESTER DISK * 34, or 70 Mbyte capacity, unformatted * One Mbyte per second DMA transfer rate * Non-removable, 8-inch media * Average latency: 8 milliseconds * Average seek: 42 milliseconds * 1024 byte sectors * 32-byte software header * 32-bit ECC code FLOPPY DISK * 1.2 Mbyte, double-sided/double density, 8-inch slimline package * Media compatibility with all DOMAIN Nodes * 500 Kbyte/second DMA transfer rate * Track-to-track access time: 3 milliseconds * Average latency: 91 milliseconds * 1024 byte sectors DSP80 PROVIDES NETWORK-WIDE PERIPHERAL SERVICE The DSP80 DOMAIN Server Processor can connect a wide variety of shared peripheral devices to the DOMAIN system. The DSP80 is network-compatible with the DN300, DN460, and DN660 Computational Nodes and controls peripherals supported by Apollo Computer, such as storage module disk subsystems, communication gateways, magnetic tape subsystems, line printers and plotters, plus a host of low speed serial devices. DOMAIN users also have the option of connecting their own special ized devices or peripherals via the DSP80's IEEE-P796 Multibus or serial I/O interfaces. SOFTWARE FEATURES - AEGIS OPERATING SYSTEM AEGIS is DOMAIN's object-oriented, virtual memory operating system that supports up to 15 concurrent processes, each of 16 Mbytes, on each Computational Node. Objects of size up to four gigabytes are emand-paged from local disk storage and remotely across the DOMAIN network. AEGIS COMPONENTS * Interactive display manager presents output from multiple concurrent processes; includes a comprehensive screen-oriented editor; supports display of high-resolution garphics and multi font text. * Graphic primitives library provides device-independent, low-level access to DOMAIN display hardware. * Interprocess communication, process creation, and event synchron ization coordinate the execution of separate programs. * Network-wide hierarchical directory structure with access control list protection mechanism for security. * Shell command line interpreter for application control: an inter active programming language whose "verbs" are user and utility programs. * Redirectable stream I/O for network-wide process/device/file interconnection. * Comprehensive online HELP facility. SOFTWARE OPTIONS * FORTRAN-77 compiler conforms to ANSI standard plus extensions. * Pascal compiler conforms to proposed ISO standard plus extensions. * C language compiler. * Common code generator. * Common high-level language debugging tool. * D3M: DOMAIN Distributed Data Management. * AUX: a software environment based on UNIX System III. * DOMAIN X.25 communications gateway. * SIGGRAPH Core graphics library. ENVIRONMENTAL SPECIFICATIONS * Field-configurable for any voltage supply of 100, 120, 220, or 240 VAC at 50 or 60 Hz. * Operates within 60 degrees F (15C) to 90 degrees F (32C). * Altitude rated from sea level to 7000 feet (2.1 Km). DIMENSIONS CPU & Optional Display Keyboard Disk Unit ------- -------- --------- Height 19.7(50) 2.4 (6) 12.7(32) Width 22.4(57) 22.4(57) 11.1(28) Depth 16.5(42) 7.5(19) 19.2(49) All dimensions are in inches (cm).