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Philips Monitor VS0080 / MSX2

April 18th, 2010 8 comments
Philips Monitor VS0080 / MSX2

Autopsy:

I fixed two problems of this monitor: the PowerSwitch and the Video Composite input.

The monitor is a VS0080 RGB Color Monitor, which is technically identical to the Commodore 1084 Monitor, but with a black case to match the MSX colors

Download: PHILIPS VS0060 0080 Service Manual (40)

Philips Odyssey 2001

April 18th, 2010 1 comment
Philips Odyssey 2001

Autopsy:

from pong-story homepage:

Magnavox started to export video games in 1974. At first, Odyssey was exported in 1974 in more than ten countries. Later in 1976, Philips released the Philips Odyssey 200 in several countries including Austria and Germany. Finally, the Philips Odyssey 2001 and the Odyssey 2100 were released in 1977 and 1978.

The Odyssey 2001 is nearly same as the Magnavox Odyssey 4000, but it didn’t play the same games. Designed around the National Semiconductor MM-57105 chip, it played three games in color: Tennis, Hockey and Squash. Unlike most PONG games, sound came directly from the TV set. The chip delivered color video signals,  as opposed to the black and white games of the General Instruments game chips, which could use a special color encoder chip.

The game selection was simply done by pressing the button of one of the two controllers, allowing the players to switch from a game to another. The documentation of this console exists in ten languages, although only four foreign patents are shown on the back side of the system. The exact number of countries where this system sold is still unknown. This system is quite common, and Germany seems to be the country where it was most successfull.

source: pong-story.com wikipedia

IBM PC compatible Microswitch Keyboard with AT/XT Switch

April 15th, 2010 1 comment
Microswitch Keyboard with AT/XT Switch Microswitch Keyboard with AT/XT Switch

This is a IBM PC Compatible Microswitch Keyboard from 80 years with AT/XT switch.

Amstrad PC1640 SD

April 13th, 2010 2 comments
Amstrad PC1640 SD

Autopsy:

Amstrad Monitor PC-CD / Mouse / Keyboard and System Discs

from Wikipedia:

The Amstrad PC1512 was Amstrad’s mostly IBM PC-compatible home computer system, first manufactured in 1986. It was later succeeded by the PC1640.

It launched for £499 and sold very well, as it was one of the first cheap PCs in Europe. It significantly helped open up the European PC market to consumers as well as businesses, and Amstrad’s advertising of the PC1512 was aimed at homes rather than offices. The 1512′s influence was such that the UK PC magazine PC Plus originally targeted itself at the “Amstrad PC 1512 and compatibles”, since home ownership of other PCs at the time was rare.

The PC1512 shipped with 512K of RAM; it could be upgraded to 640K of RAM with an expansion pack. Video output was compatible with the CGA standard, with an extension allowing all 16 colours to be used in the 640×200 graphics mode. The CPU of both the PC1512 and the later PC1640 was an 8 MHz Intel 8086, which was sufficient for playing The Secret of Monkey Island, Maniac Mansion and Prince of Persia. The power supply was located in the monitor, which made upgrading difficult.

source: wikipedia

Zenith Data Systems SlimSport 286 (IWL 286-2)

April 11th, 2010 No comments
Zenith SlimSport 286 (IWL 286-2)

Autopsy:

Heath / Zenith pioneered the laptop computer market in 1985, with “lunchbox” portable computer Z 171, the first MS DOS based small portable computer fit with two 5″1/4 floppy disks ans blue LCD screen, that was built for Heath / Zenith by Vadem Corp. under an OEM agreement, and purchased in large numbers by the US Internal Revenue Service. Next, in 1987, followed the Intel 8088-based Zenith 181 and Zenith 183, the latter being one of the very first laptops to be equipped with a hard disk.

The follow-on SupersPORT was substantially larger and heavier, but provided much-improved performance through the use of the Intel 286 processor. It was selected by the US Army and Navy in one of the first major government purchases of laptop computers.

from Wikipedia:

Zenith Data Systems (ZDS) was a division of Zenith founded in 1979 after Zenith acquired Heathkit, who had, in 1977, entered the personal computer market.

Headquartered in Benton Harbor, Michigan, Zenith sold personal computers under both the Heath/Zenith and Zenith Data Systems names. Zenith was an early partner with Microsoft, licensing all Microsoft languages for the Heath/Zenith 8-bit computers. Conversely, Microsoft programmers of the early 80s did much of their work using Zenith Z 19 and Z-29 CRT display terminals hooked to central mainframe computers. The first H 8 Heathkit computer, sold in kit form, was built on Intel 8080 processor.

It run K7 audio-tape software, punched tape software (with puncher/readr H10) and HDOS (Heath Disk Operating System) software on 5″1/4 hard-sectored floppy disks. The CP/M operating system was adapted to all Heath/Zenith computers, in 1979. Next, the early Heath/Zenith computers (H88/H89 ans Z89) were based on the Z80 processors and ran either HDOS or CP/M operating systems.

source: wikipedia

Apple IIc Box / Manuals / Warranty Card…

April 4th, 2010 No comments
Apple IIc Box

Autopsy:

Apple IIc Box / Manuals / Warranty Card…

source: wikipedia

Apple IIc/IIe Joystick Model A2M2002

April 2nd, 2010 2 comments
Apple IIc/IIe Joystick Model A2M2002

Autopsy:

Analog Joystick for Apple IIc/IIe. source: wikipedia

Rare Apple IIc PAL Modulator/Adapter Model A2M4023

April 2nd, 2010 No comments
Apple IIc PAL Modulator/Adapter Model A2M4023

Autopsy:

Rare Apple IIc PAL Modulator/Adapter (RF / Composite Color Output) Model A2M4023.

source: wikipedia

Philips MSX 2 NMS-8250

March 22nd, 2010 2 comments
Philips MSX 2 NMS-8250

Autopsy:

The Philips  NMS-8250, (NMS is short for “New Media Systems”) was a professional MSX 2 home computer for the high end market, with two built in floppy disk drives in a “pizza box” configuration. It featured professional video output possibilities, such as SCART for a better picture quality, and a detachable keyboard.

from Wikipedia:

MSX was the name of a standardized home computer architecture in the 1980s conceived by Kazuhiko Nishi, then Vice-president at Microsoft Japan and Director at ASCII Corporation. It is said that Microsoft  led the project as an attempt to create unified standards among hardware makers. Despite Microsoft’s involvement, MSX-based machines were seldom seen in the United States and Britain, but they were popular in other markets.

Eventually 5 million MSX-based units were sold worldwide. It’s unclear why this attempt would be based in Japan rather than in the US or why Microsoft would not mention this involvement in its history while giving well known coverage to IBM-PC  and Apple’s Macintosh, except for Nishi being the true sponsor and not Microsoft.

Nishi proposed MSX as an attempt to create a single industry standard for home computers. Inspired by the success of VHS as a standard for video cassette recorders, many Japanese electronic manufacturers along with GoldStar, Philips and Spectravideo built and promoted MSX computers. Any piece of hardware or software with the MSX logo on it was compatible with MSX products of other manufacturers. In particular, the expansion cartridge form and function were part of the standard; any MSX expansion or game cartridge would work in any MSX computer.

source: wikipedia msx.org msx.retro8bits.com sharksym.egloos.com

My homebrew C2N232 Interface

March 20th, 2010 No comments
Marko Mäkelä's C2N232 interface

Autopsy:

This is my homebrew C2N232 Interface.

from Marko Mäkelä’s homepage:

The C2N232 is a small RS-232 interface that can be plugged to the cassette port of an 8-bit Commodore computer:

  • PET series: 2001, 3000 series, 4000 series, 8000 series, 200 series
  • PET-II series: CBM 500, 600 or 700 series (P500 or the B series)
  • Commodore VC-20, VIC-20 or VIC-1001
  • Commodore 64, 4064, 64c or 64G
  • Commodore 128, 128D or 128DCR
  • Commodore 264 series: 16, 116, plus/4 or 232

source: Marko Mäkelä’s Homepage

Commodore CBM 8250 Dual Drive Floppy Disk

March 17th, 2010 No comments
Floppy Disk Drive CBM 8250

Autopsy:

from Wikipedia:

The Commodore 8050 and Commodore 8250 were dual unit 5¼” floppy disk drives for Commodore International computers. They used a wide rectangular steel case form similar to that of the Commodore 4040, and used the IEEE-488  interface common to Commodore PET/CBM computers.

The 8050 was a single sided drive, whereas the 8250 could use both sides of a disk simultaneously. Both used a “quad” density format storing approximately 0.5 megabyte per side. The density of media was similar to later PC high density floppy disks, but the 8050 and 8250 could not use PC high density disks reliably. Since “quad” density disks were rare even at the time, users quickly found that typical double density floppy disks had enough magnetic media density to work in these drives.

These drives were not dual mode, so they could not read or write disks formatted by the more common lower capacity Commodore 1541 or Commodore 4040 models. Some variants of these drives existed. The Commodore 8250LP was the 8250 in a lower profile, tan-colored case. The Commodore SFD-1001 was a single drive version of the 8250 in a Commodore 1541 style case (similarly to the Commodore 2031LP), often used by bulletin board systems for their physical similarity to 1541s and high capacity and speed.

source: wikipedia

Commodore PET CBM 8096-SK (Low serial number: WG #01234)

March 15th, 2010 5 comments
Commodore PET CBM 8096-SK

Autopsy:

from Wikipedia:

The Commodore PET (Personal Electronic Transactor) was a home/personal computer produced by Commodore starting in 1977.  It was a top seller in the Canadian, United States, and United Kingdom educational markets, and was Commodore’s first full-featured computer and would form the basis for their entire 8-bit  platform. n the 1970s, Texas Instruments was the main supplier of CPUs for use in calculators. Many companies sold calculator designs based on their chip sets, including Commodore.

However, in 1975 TI increased the price to the point where the chip set alone cost more than what TI sold their entire calculators for, and the industry they had built up was frozen out of the market. Commodore responded by looking for a chip set of their own they could purchase outright, and quickly found MOS Technology, Inc. who were bringing their 6502 microprocessor design to market.

Along with the company came Chuck Peddle’s KIM-1 design, a small computer kit based on the 6502. At Commodore, Peddle convinced Jack Tramiel that calculators were a dead-end. Instead they should focus on making a “real” machine out of the KIM-1, and selling that for much higher profits. Tramiel demanded that Peddle, and Tramiel’s son, Leonard, create a computer in time for the June 1977 Consumer Electronics Show, and gave them six months to do it. The result was the first all-in-one home computer, the PET. The first model was the PET 2001, including either 4 KB (the 2001-4) or 8 KB (2001-8) of 8-bit RAM. It was essentially a single-board computer with discrete logic driving a small built-in monochrome monitor with 40×25 character graphics.

The machine also included a built-in Datassette for data storage located on the front of the case, which left little room for the keyboard. The data transfer rate to cassette was 1500 baud, duplicated for safety, giving an effective rate of 750 baud. The 2001 was announced at the ’77 Winter CES in January 1977 and the first 100 units were shipped in mid October 1977. However they remained back-ordered for months, and to ease deliveries they eventually cancelled the 4 kB version early the next year. Two more machines were released in the PET series.

The CBM 8000  included a new display chip which drove an 80×25 character screen, but this resulted in a number of software incompatibilities with programs designed for the 40 column screen, and it appears to have been unpopular as a result. The machine shipped with 32 kB standard as the 8032, but allowed another 64 kB to be added externally. Later the upgrade was installed from the factory, creating the 8096.

source: wikipedia petlibrary.tripod.com

Powersupply Adaptor for CPC 6128 with External Floppy Drive 3½

March 13th, 2010 2 comments

My homebrew Powersupply adaptor for Amstrad CPC 6128 with a External Floppy Drive 3½.

source: cpcwiki.eu jrp king homepage kjthacker.f2s.com

Amstrad (Schneider) CPC 6128 Parados Rom v1.1

March 12th, 2010 No comments
Parados v1.1 Screenshot

Parados Installation Photo Gallery:

ParaDOS is 16kB ROM that replaces the AmsDOS. Allows to use double-sided floppy disks and some more disk formats.

source: grimware.org

Apple IIc – Apple Disk Transfer ProDOS

March 10th, 2010 3 comments
APPLE ][ Serial Cable & Serial USB Adapter

Foto review of the Serial cable and Transfer program:

ADTPro may be used to transfer Apple diskette/disk images in DOS or ProDOS/SOS format.

The Apple client side happens to run under ProDOS or SOS, but it is perfectly capable of reading or writing Apple DOS (or Pascal, or CP/M, or…) diskettes.

source: adtpro.sourceforge.net