--- title: Vector Graphics MZ categories: - Computers types: - Professional Computer origins: - U.S.A. years: - '1979' cpus: - Z80A params: name: MZ company: /companies/vector-graphics company_name: Vector Graphics specs: - label: NAME value: MZ - label: MANUFACTURER value: Vector Graphics - label: TYPE value: Professional Computer - label: ORIGIN value: U.S.A. - label: YEAR value: '1979' - label: BUILT IN LANGUAGE value: None - label: KEYBOARD value: Full stroke 72 keys with numeric keypad - label: CPU value: Z80A - label: SPEED value: 4 MHz. - label: RAM value: 48 KB - label: ROM value: 4 KB (Monitor) - label: TEXT MODES value: 80 chars. x 25 lines - label: GRAPHIC MODES value: None - label: COLORS value: Monochrome - label: SOUND value: Beeper - label: I/O PORTS value: 2 x Serial RS-232C, 1 x Parallel - label: BUILT IN MEDIA value: Dual 5 - label: OS value: CP/M - label: POWER SUPPLY value: Built-in power supply unit - label: PERIPHERALS value: S-100 cards - label: PRICE value: About $4800 tabs: - links links: - title: Vector Graphics 1976 - 1984 url: http://www.vectorgraphics.org.uk text: Web site dedicated to Vector Graphics systems - title: VECTOR-GRAPHIC List url: http://h-net.msu.edu/cgi-bin/wa?A0=VECTOR-GRAPHIC text: mailing list for Vector Graphic computers comments: - author: Vincent Sabio (Reston, VA) date: Sunday 28th October 2018 text: |- Jay writes, "It did, in fact, have a rough graphic facility. Each character cell was divided into six parts, and by changing the character ROM offset you could draw monochrome graphics with 160 x 72 resolution." "Rough" is a good word for it. As I recall, the monitor display was memory mapped $ but there was a bug in the mapping that caused several of the memory locations to display in the wrong place on the monitor. I wrote a subroutine that took in the \*intended\* screen location, made any necessary corrections to the coordinates, and wrote to the correct$ed$ areas of the memory map to get the intended pixels to display properly. To be sure, the vast majority of pixels displayed properly. There was only a handful that displayed wrong $ but enough to mess things up. - author: Claus Buchholz (Michigan) date: Sunday 12th May 2013 text: I worked at New Dimensions in Computing in East Lansing where we sold Vector Graphics (and Exidys and Ataris). They used some CP/M accounting programs on the Vector Graphic, including a buggy sales tax program in MS BASIC. They asked me to fix it and that''s when I learned about inexact decimal values in binary floating point numbers (as opposed to Atari''s exact BCD values). I added some rounding and fixed the bug. - author: J.T. Barbarese (Philadelphia, PA, USA) date: Sunday 24th April 2005 text: I wrote using Memorite running under CP/M on a Vector Graphic System Z from 1984 until it became impossible to port files or support the hardware. In 1987 I found a man in Florida who offered to transfer from hard-sectored floppies at a ridiculous rate, so I spent 20 hours porting files over the parallel (printer) port (from the Vector to a 286 machine), using pip.com. ("pip a:\*.\* > com1:"-- I think) It worked, but Still miss Memorite! - author: Bill Schneberg (Ventura, California) date: Tuesday 16th November 2004 text: I have several Vector MZ's and Vector 3's. My original Vector MZ was purchased in June of 1980. It was configured as a System B (Two floppies, software, and a Qume impact letter quality printer). I still use one of the machines to this day. - author: Julio Sánchez (madrid) date: Monday 8th March 2004 text: |- workked with this equipment until the arrival of the Pc.\ At the company where I worked we where runnig accounting an word procesing. The last configuration we had was a multiuser CPM with 3 stations sharing a 8" winchester.\ The software was wrote in basic and I compile some modules except one because the compiler had a bug and with the next version of the compiler the size of the program was very big and can´t fit in memory. Old Days! - author: Ivan Andrews (London, UK) date: Monday 9th February 2004 text: We had a bunch of these machines back in the mid-80s, and I still have some hard-sectored floppies. Does anyone know of any company that can read these? They are standard 5.25, CPM 2.2 disks, but with 16 sector holes. It would be good to get back the source code that is still on them! related: - /museum/vector-graphics-vector-1 - /museum/vector-graphics-vector-3-vip - /museum/vector-graphics-vector-4 oc_id: 799 source: url: https://web.archive.org/web/20230223072241/http://www.old-computers.com/museum/computer.asp?c=799 date: '2023-02-23' --- The Vector Graphic MZ featured the same hardware basis as the [VIP](/museum/vector-graphics-vector-3-vip/) model: S-100 based system with a Z80A processor running CP/M operating system.\ However, its separate main unit had an 18 slot motherboard and integral dual floppy disc drives (2 x 315 KB). The system came with 48 KB of RAM, 4 KB monitor ROM, and used the Vector 3 "Mindless Terminal". Although it may look like a terminal, the Mindless Terminal only had a parallel keyboard, and a B/W monitor. All video and keyboard interface was via S-100 card called Flashwriter, with all power signals passed via a DB-25 connector. A little more information about Vector Graphics Company, in 1980:\ **Systems shipped:**\ Vector 1, Vector 1+, Vector 1++ - 1,500 systems\ Vector MZ, System B, Memorite 2 - 4,500 systems\ **Location of facility** Westlake Village, California.\ Number of square feet - 40,000\ Number of employees - 140\ **Sales level:**\ Year ending June 30, 1979 - $6 million\ Year ending June 30, 1978 - $2 million\ Year ending June 30, 1977 - $400 K The first shipped product was a 8 KB memory card, in September 1976. --- **Jay Abel's** memories:\ I wrote drivers for this machine many, many years ago. It did, in fact, have a rough graphic facility. Each character cell was divided into six parts, and by changing the character ROM offset you could draw monochrome graphics with 160 x 72 resolution. Hey, back then, drawing a circle on the screen was a big deal. Later models shipped with Double-Sided, double-density Micropolis Hard-sectored 5-1/4" floppy drives. I ported UCSD pascal to mine, and moved the drivers to the "scratchpad" (unused) 2k memory on the video card. I added an 8k RAM board to the original 48k that came with it. Though my machine didn't ship with CP/M, it was easy to port.\ The only difficult part was that there was no standard boot code, owing to the wierd hard sectored drives with the most rudimentary controller possible, so once you go the O/S ported you had to write your own loaded. The only capability provided by the BIOS was to pull the first sector into memory. And this first sector was in a wierd format, so that the bootstrap couldn't be copied by the target O/S. So you \*also\* had to write a special program to copy the boot sector...