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PRODUCT DETAILS 68040 Processor The 68040 is a fast and highly integrated microprocessor with clock speeds of 33 Mhz. The 68040 contains 1.2 million transistors, more than any other microprocessor in its class. This incredible number of transistors is required because the 68040 is actually four chips in one -- a central processing unit, a floating point unit, a paged memory management unit, and 8 kilobytes of cache memory. The system clock speed is identical to the CPU bus speed, providing an average execution time per instruction of 1.3 clock cycles. There are two 4-KB memory caches, one for data, the other for instructions, along with burst mode read and write-back caching for improved data transfers. 56001 DSP Built into the NeXTcube Turbo's design is the 56001 DSP, a 25 Mhz digital signal processor. With 24K of static RAM cache upgradable to 96 K, the DSP is dedicated to the task of handling digital signals--such as sound--at exceptional speeds. The DSP is capable of generating compact-dic-quality sound: 44.1 kHz sampling rate with 16-bit resolution and full stereo. Other uses for the DSP range from receiving still and video images to a variety of other data transmission and acquisition activities. Network Support Built-in networking, both thin and twisted-pair Ethernet ports are designed into all NeXT computers. Network software and administrative tools are preloaded on all hard drives to simplify connecting to virtually any network, with no additional cards to purchase, install, or configure. DMA Architecture NeXT computers were designed to handle the most complex tasks efficiently. Rather than emulating a traditional PC or workstation architecture, NeXT systems use a direct memory access (DMA) architecture similiar to that of mainframe computers for off- loading I/O functions from the CPU to the peripherial controller (PC) chip to maximize system throughput. NeXTbus Expansion Slots NeXTbus provides a multiplexed 32-bit address and data bus on a single Euro-DIN 96-pin connector. NeXTbus architecture runs at 16.5 Mhz and can support data transfer rates up to 66MB per second in burst mode. NeXTbus is self-configuring: cards can be plugged into any slot and the system will automatically identify and configure each card. RAM Configurations NeXTcube Turbos are currently available in 16, or 32 MB RAM configurations. To support the fast memory transfer capability of the Turbo Memory Controller (TMC), NeXTcube Turbos utilize very high speed (70-nanosecond) 72-pin DRAM SIMMS. RAM upgrades can be added incrementally in two-SIMM increments up to 32 MB of RAM. When denser chips (16 MB) become available, NeXTcube Turbos can be upgraded up to 128 MB. Parity memory is also an option, and can be ordered on a select number of 16 MB configurations. SCSI SCSI is an expandable high- performance interface for connecting NeXTcube Turbos to hard disks and other peripherials, such as the NeXT Color Printer, NeXT External CD-ROM Drive, scanners, and other devices. Up to seven SCSI peripherials (including the internal hard disk) can be connected. SCSI data transfer rates are up to 4.8 MB/sec (SCSI-I implementation). A SCSI-II--type connector was used on NeXTcube Turbos to provide high data reliability in CPU-to-peripherial connection. Sound I/O NeXT computers have been designed to accept and process sound. Using the built-in microphone in the MegaPixel Display or an external microphone, voice messages can be easily added to electronic mail or used to anotate applications. NeXTstep Based on the industry's first object- oriented system software, NeXTSTEP offers an elegant graphical user interface and one of the most productive development enivronments available today UNIX NeXT's operating system is based on the Mach UNIX kernel developed at Carnegie Mellon University, which features shared memory, fast interprocess communication, multitasking, and network support. NeXT's UNIX is compatible with UNIX 4.3 BSD (Berkeley Software Distribution). Display Postscript NeXT offers a unified imaging model Display PostScript®, for imaging on both the screen and printer. Bundled Software Each NeXTcube Turbo ships with an unprecedented amount of end-user and development software including: End-User Applications Workspace Manager™ NeXTmail™ Digital Webster™ (Webster's Ninth New Collegiate Dictionary™ and Collegiate® Thesaurus) Digital Librarian™ Edit Mathematica® -- for higher education customers only DataViz/Bridge™ FaxReader Preferences Preview for PostScript® PrintManager System Administration Applications VT100™ BuildDisk BuildDOS InstallTablet MailManager NetInfoManager NetManager PrintTester UserManager NeXTstep Release 2 Extended also Includes: End-User Applications Oxford® Dictionary of Quotations William Shakespeare: The Complete Works (for Digital Librarian) TEX™ Document Processing System (Radical Eye Software) Developer Tools Interface Builder™ NeXT Compiler for the Objective-C Language C++ Language Compiler Objective C Class Definitions 56001 DSP Tools GNU Emacs GNU Debugger BUG-56™ Debugger (Ariel) Malloc Debugger AppInspector™ PostScript Tools Application Kit™ Music Kit™ Sound Kit™ On-line technical documentation

Created by Stone Design's Create on 6/9/1998