The ACS8600 family The new 16-bit micro system. Another first from Altos... Minicomputer performance at a price.

Why you should consider • Multibus Expansion Interface. the ACS8600 family. • Up to 1 MByte of 64 KByte MOS RAM Memory Chips. More power.The ACS8600 family is designed to perform larger. more i1LZO~ Powerful 16-bit processors. The complex tasks for more users. Larger CPU is the proven 8086 16-bit HMOS word size allows the use of more COMPUTER S EMS . The CPU operates at oowerful instructions and direct twice the clock speed of the Z8O—a ddressing of more memory. This More powerful processing capability. fast 8 MHz. It can directly address means the system requires fewer bigger memory, and special memory one megabyte of memory. It uses instructions and fewer computer management of the ACS8600 family assembly language compatible with cycles to accomplish the same job. It extend multi-user capabilities. Up to the 8080/8085. It performs 8- and also means that it can handle com eight users are served without long 16-bit signed and unsigned arith plex mathematical problems. large waits for service. metic in binary or decimal, including data base searches and other de 808616-bit multi-user features at multiply and divide. manding applications in far less time. an 8-bit system price. Multiple processors. The ACS8600 Serving more users. Altos has • Multiple Processors. family uses more than one processor. pioneered the development of micro • Direct Addressing to One Megabyte While the 8086 serves as the master computer-based multi-user systems. of Memory. CPU, other ‘slave” processors are Our 8-bit ACS8000 series systems • Error Correction On Memory. dedicated to special tasks. For can perform a wide range of tasks • Proprietary Memory Management example, a second processor handles for up to four users. As more users Design. (DMA). An are added to the system and the • Full Communications Support optional math processor handles tasks become more complex, a 16-bit • Integrated Winchester/Floppy math functions. While each processor computer may be required. Data Storage. is optimized for specific tasks, they

8 Users milim Networking

Software

cpu: ~LZO.~ 8O864~\ RAM:lZ8Kb-iMb

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Floppy Disks: lMb-2Mb Mag Tape: 17Mb

Winchester Disk: lOMb-8OMb later with our MTU-1—a stand-alone Multi-Processor Organization magnetic tape cartridge back-up that can be added to any Altos hard disk system. All mag tape systems include complete mag tape back-up ACS8600 System software. Additional storage. If you need more data storage. you can plug in Central Processors one of three add-on storage modules 8086, 8087, 8089 —8-inch Winchester/mag tape cartridge, 8-inch Winchester/floppy, or mag tape cartridge/floppy. If you need still more, you can add a Multibus compatible expansion enclosure that permits interface to a Storage Module Drive (SMD) of up to Disk 300 MBytes, or a 9-track tape for Drives work together to share the workload board computer and disk drive con unlimited archival storage. Random for faster execution and response time. troller with Winchester disks to give Multibus”' expansion interface. ThL a Access Error correction. While even many you a powerful system that can Multibus compatible expansion port Memory mid-sized minicomputer memories handle big data bases and serve four also allows expansion beyond stan lack Error Correction Code (ECC), the or more users. The faster speed and dard peripherals to tailor the system Diskette ACS8600 family improves operational bigger capacity of Winchester allows to special requirements. For example, Drives reliability with its own ECC.The you to take full advantage of high the user can add array processors, memory has full error detection for CPU speed. A-to-D or D-to-A converters, IEEE- Bootstrap Memory single and double bit errors and Eight-inch Winchester hard disk 488 bus interface, digitizer or digital (Shadow Overlay) correction of single bit errors. This systems. Our multi-user eight-inch relay boards. reduces system errors that can lock hard disk systems give you from 128 Memory expansion. The basic Thpe — — — — — — — — — — up a system, because memory KBytes up to a full megabyte of ACS8600 family configuration includes Drives contents have changed. RAM memory and ten megabytes of 128 KBytes of RAM. Memory is Unique memory management. The ultra-reliable storage on Winchester expandable in 128 KByte increments ACS8600 family uses a proprietary hard disks with a choice of floppy to one megabyte. memory management system. It (single or double-sided) or magnetic Software. Although the ACS8600 ‘Terminals subdivides up to one megabyte of tape cartridge. family uses a 16-bit processor, it uses Printers High Speed memory into 4 KByte blocks. It software compatible with the Z80. Line Printer In addition, you can use up to two Network assigns a logical-to-physical address 8-inch Winchester hard disks to Most 8-bit application packages can translation and various access attri double your capacity. be recompiled to run on the 16-bit butes to each block so that non Magnetic tape cartridge back-up. configuration. The popularity of the contiguous physical memory can Many users like transportable mag 8086 processor has encouraged the be assigned to any given task. This tape to provide back-up copies from development of more advanced oper . capability reduces the need to swap the hard disk. It’s low-cost insurance ating systems, languages and applica users or tasks out to disk. The result for important files. Altos gives you tion programs that make full use of is that data base sorting and other mag tape back-up with an faster speed and longer tasks requiring large memory are 8-inch Winchester. Or word length. performed faster. The system also you can add tape provides write and access protection to increase reliability and Multibus Compatible performance. Expansion Full communications support. The ACS8600 family supports asynch ronous and synchronous protocols, Altos Software provides networking facilities, and a Compatibility high speed (800 KBits) communica tions port. Integral data storage. The system accommodates 8-inch floppy disks (double density, single or double Z80 8086 sided) as well as 8-inch Winchester MP/M MP/M-86 hard disk drives for large capacity CP/M® CP/M-86 storage, I/O and backup. We’ve OASIS OASIS- 86 integrated our proprietary single ” (”) CPU—Intel 808616-bit Multi-user 16-bit systems H MOS Microprocessor Floppy Disk Hard Disk • Direct addressing capability to Model ACS8600-15 ACS8600-1O Family 1 MByte of memory CPU 8086 (8 MHz) 8086 (8 MHz) • Assembly language compatible with 8080/8085 RAM Memory 128 KByte-i Mbyte 128 KByte-i MByte • 8- and 16-bit signed and unsigned Users 1-8 1-8 arithmetic in binary or decimal, including multiply and divide Floppy controller • 8 MHz clock rate density Double Double Floppy drive type Single/Double Sided Single/Double Sided Unique Altos Design I/O ports Characteristics Serial 2-12 2-12 • Multiple processor strategy: Parallel 24 Programmable Lines 24 Programmable Lines —8086 CPU Number of drives —8087 (Optional) Floating Point Winchester (upgradable to up to Up to 2 hard disk drives Math Processor (5 MHz only) 2 hard disk drives) —8089 DMA-I/O Processor for Floppy 2 1-2 rapid movement of large data blocks ibtal storage • Supports up to 8 terminals Winchester (upgradable to 10 MBytes-8O MBytes • ECC—Error Correction Code 10 MBytes-80 MBytes) —Single bit correction Floppy 1 MByte-2 MBytes 1 MByte-2 MBytes —Double bit detection NOTE: Stand-alone magnetic tape cartridge back-up can be added to any hard disk based —Accomplished via LSI circuitry system (Model MTU-1). —Self diagnostics capability Winchester disk capacities are specified unformatted. • Proprietary Memory Management MP M and MP M 86 are trademarks of Digital Design Research. Inc. —Memory mapping in 4 KByte •cp M is a registered trademark of Digital Research. Inc. •OASIS and OASIS 86 are products of Phase One. Inc. blocks Z80 is a trademark of Zilog. Inc. 8086. 8087 and 8089 are products of Intel corporation. —Write protection ‘Multibus is a trademark of Intel corporation. —Access protection XENIX is a trademark of and is a microcomputer • Full communications support implementation of UNIX~ a trademark of Bell Laboratories. —Asynchronous (Async) — Synchronous (Bisync) —Networking —High speed (800 KBits) Communications Ports Multibus Compatible Expansion Port • Array processors • AID, D/A • Thpe interface (9 track) • Hard disk controllers (SMD interface included) • Bubble memory • IEEE-488 bus interface • Digitizer • Digital relay boards

COMPUTER SYSTEMS 2360 Bering Drive San Jose, California 95131 (408) 946-6700 Telex: 171562 ALTOS SNJ East Coast Sales Office: (201) 228-5748

1981 Altos computer Systems Printed in U.S.A. 4 81 047-1-25