website/content/museum/extensis-ex3000.md

title, categories, types, origins, years, cpus, params

title	categories	types	origins	years	cpus	params
EXTENSIS EX3000	Computers	Home Computer	U.S.A.	1977	8085	name image company company_name specs tabs links oc_id source EX3000 /media/museum/photos/extensis.jpg /companies/extensis EXTENSIS label value NAME EX3000 label value MANUFACTURER Extensis label value TYPE Home Computer label value ORIGIN U.S.A. label value YEAR 1977 label value BUILT IN LANGUAGE Unknown label value KEYBOARD Unknown label value CPU 8085 label value SPEED Unknown label value RAM 16 KB (up to 64 KB) label value ROM 16 KB label value TEXT MODES 80 x 24 label value GRAPHIC MODES Unknown label value COLORS Unknown label value SOUND Unknown label value SIZE / WEIGHT Unknown label value I/O PORTS Several cards (see lower) label value BUILT IN MEDIA None (in standard) label value OS EMOS label value POWER SUPPLY Unknown label value PERIPHERALS Unknown label value PRICE Unknown links title url text More information about the Extensis 3000 http://www.tomshardware.com/2007/02/23/weird_and_wonderful_pcs_and_pc_mods/page5.html The Real World's 1st Multi-User/Multi-Tasking Micro 48 url date https://web.archive.org/web/20230208062406/http://www.old-computers.com/museum/computer.asp?c=48 2023-02-08

The EX3000 Computer, a typical success(?) saga of the early personal computer days.

The Extensis Corp. EX3000 computer pulled together four emerging technologies; multiprocessor supercomputers, 8 bit microprocessors, the S100 bus standard and multiprocessor, multitasking multiuser operating systems.

The hardware of the EX3000 system consists of subsystems and boards. Three subsystems were provided :

FOS100 > Floppy disk subsystem (from one to four MB)
MTS100 > Multiple terminal system with 8 or more independant RS232c serial interfaces
TPS100 > Terminal / Operator Processor Subsystem with keyboard, CRT, RS232c and expanded video attributes.

And the following boards were included in the EX3000 :

RM64A > Memory board with 16 KB RAM
MM16 > Memory Management board with bankswitching up to 1 MB.
MPU8085 > 8085 Central processor with onboard PROM
MPU800 > Optional Z80 CPU with onboard PROM

The operating system, EMOS, is a multi tasking, multi users operating system which provides memory protection for each user. It can handle the two processors simultaneously. Several languages were developped for this operating system : Extended Basic, Cobol and ANSI Fortran.

We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.