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Re: Laser 128 info needed
1. Make and Model:
Video Technology Laser 128EX/2 (refined and extremely
popular Apple IIc Plus clone)
2. Released:
1988
3. Follows:
Video Technology Laser 3000
4. Followed by:
N/A
5. CPU:
Western Design Center (not to be confused with Western
Digital, the hard drive maker) 65C02 running at 3.6Mhz
6. ROM:
64K -- This includes the only legal Apple compatible
ROM by 1988 (Apple lost a lawsuit challenging it) and
Microsoft BASIC (the Applesoft compatible version)
licensed from Microsoft.
7. RAM:
128K standard with built in sockets for expansion to
1MB using 41256 chips of 120ns or faster (the motherboard
is designed to do bank switching, like the IIc Plus).
Memory support is controlled by a custom Memory
Management Unit (MMU) array...memory size is
automatically detected when new chips are put in.
8. Case:
Attractive light beige ABS impact resistant plastic.
Case has handle that doubles as a prop to raise the
rear of the computer for easy typing.
9. Keyboard:
Full layout keyboard with numeric keypad and function
keys. The copyrighted Open Apple and Closed Apple
have been replaced with Open Laser and Closed Laser
symbols. The keys have rollover and full travel and
a very nice feel.
10. Display:
The Laser 128EX/2 has all the graphics modes found on
the Apple IIc, with an extra character set for RGB.
--Text mode: 40x24 and 80x24. Characters are formed
by a 7x8 pixel matrix ON THE COMPOSITE OUTPUT. The
128EX/2's Video Display Generator chip also provided
both analog RGB video (for connecting an Apple IIGS,
Amiga, or Atari ST monitor) and digital RGB video
(for connecting a CGA monitor). In RGB mode, the
Video Display Generator (VDG) chip generates a text
character set identical to an IBM PC (with the
addition of the Open and Closed Triangle characters
and MouseText). Text mode is monochrome.
--Low Resolution: 40x48 pixels in 16 colors.
--Double Low Resolution: 80x48 pixels in 16 colors.
--High Resolution: 280x192 pixels in 6 colors
--Double High Resolution: 560x192 pixels in 16 colors.
--Combinations/Variations: 4 lines of text mode can
be mixed with a truncated Low Resolution or High
Resolution mode graphic. The text in mixed mode can
be either 40 column or 80 column.
11. Audio:
Simple beeper driven by the CPU. Because the Laser's
motherboard operates at 3.6Mhz (notice that it requires
120ns or faster RAM), sound in programs designed for
earlier Apple IIs is often distorted.
12. Media:
The Laser 128EX/2 has a built in 3.5" double-sided,
double-density floppy drive with a storage space of 800K.
The drive and the external daisy-chain floppy "SmartPort"
is driven by Video Technology's custom "Universal Disk
Controller" (UDC) disk array chip. The SmartPort supports
Apple IIe/IIc UniDisks (3.5" and 5.25" models), Macintosh
3.5" drives (the ones without the buttons), Apple IIGS
daisy-chain 3.5" drives and Apple 5.25" drives. It is
also designed to support the Chinook CT-series 20MB to
100MB SmartPort hard drives.
The SmartPort can support two 800K 3.5" drives, two
140K 5.25" drives, and one 100MB CT100 hard drive
simultaneously daisy-chained to each other.
The Laser 128EX/2 has one Apple bus compatible expansion
slot on the side opposite the 3.5" disk drive. This bus
can hold an Apple High Speed (DMA) SCSI controller for
running additional SCSI based storage devices.
13. Input/Output:
Two RS-232C ports
One MIDI port (setting Port 2 to MIDI deactivates one
serial port)
One Centronics parallel port (setting Port 1 to parallel
deactivates one serial port)
Composite display output (NTSC or PAL depending on the
country)
LCD output (for flat panel display)
RGB monitor output (both analog and digital monitors
supported by the Video Display
Generator chip with its 64K of VRAM)
External Drive "SmartPort" (supports Mac, IIGS, or
UniDisks 3.5" drives, Apple 5.25"
drives, and CT-series 20MB to 100MB
hard drives)
Joystick/Mouse port (connecting one precludes connecting
the other...mouse is the same mouse
used in original Mac to Mac Plus)
Headphone connector
Speaker volume control
One Apple bus (same as Apple IIe) expansion slot
14. Trivia:
This unit was so good that Apple Computers was prompted
to upgrade the IIc to counter it. The result was the
Apple IIc Plus, also released in 1988. The IIc Plus had
a 4Mhz Western Design Center 65C02 processor, an 800K
3.5" drive built-in, and an External Drive "SmartPort"
capable of the same tricks as the Laser's. Although the
two units were similarly matched, Video Technology
actively advertised the Laser 128EX/2 while Apple had
moved on to advocating Macintosh. The Laser became the
most successful Apple II clone ever and this model was
99.8% IIc Plus compatible. The only two software the
Apple magazines reported incompatible were The New Print
Shop (Borderbund) and HomeWord (Sierra).
In North America, the Laser was aggressively marketed
in Sears department stores, where it erroded its niche
rival's sales, the Commodore 128.
This Laser unit's case was also used to make a Turbo XT
PC clone. The PC clone and the Laser 128EX/2 shared the
same case. They looked identical except for the label.
Instead of "Laser 128EX/2," the XT had "Laser XT10"
15. Emphasis:
Small business, Home, Education, Gaming, Programming
16. Net Resources:
http://ground.ecn.uiowa.edu/ (1.7GB A2 knowledge and
software repository)
http://www.sequential.con/ (Video cards and storage)
http://www.allelec.com/ (Various hardware and software)
17. Picture (see http://ground.ecn.uiowa.edu/ the ground ftp server)