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Encyclopedia > Sega TeraDrive
Sega TeraDrive
Manufacturer IBM (for Sega)
Type Video game console / Personal computer
Generation Fourth generation (16-bit era)
First available May 31, 1991[1][2]
Backward
compatibility
Sega Mega Drive
Successor Amstrad Mega PC (3rd party product developed on licence by Amstrad)

The TeraDrive was a 16-bit PC with an integrated Mega Drive, manufactured by IBM for Sega. The system was only released in Japan, as Sega was hopeful that by integrating its then popular Mega Drive console into an IBM PC would be an attraction for potential customers. The system however proved unpopular with the Japanese market and ultimately failed, as the parts used within the system were near obsolete, with the PC's CPU already 2 generations behind what was available on the stock market. A new PC was also in the discussion stages to be developed by Sega under the leadership of ex-IBM executive Narutomi[3], but this likely never got past the discussion stages due to the failure of the TeraDrive. Image File history File links No higher resolution available. ... Image File history File links File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... A console manufacturer is a company that manufactures and distributes video game consoles. ... International Business Machines Corporation (known as IBM or Big Blue; NYSE: IBM) is a multinational computer technology and consulting corporation headquartered in Armonk, New York, USA. The company is one of the few information technology companies with a continuous history dating back to the 19th century. ... Sega Corporation ) is a Japanese multinational video game software and hardware developing company, and a former home computer and console manufacturer. ... A video game console is an interactive entertainment computer or electronic device that manipulates the video display signal of a display device (a television, monitor, etc. ... Video games were introduced as a commercial entertainment medium in 1971, becoming the basis for an important entertainment industry in the late 1970s/early 1980s in the United States, Japan, and Europe. ... In the history of video games, the 16-bit era was the fourth generation of video game consoles. ... Image File history File links Flag_of_Japan. ... May 31 is the 151st day of the year (152nd in leap years) in the Gregorian calendar. ... Year 1991 (MCMXCI) was a common year starting on Tuesday (link will display the 1991 Gregorian calendar). ... The Sega Mega Drive ) is a video game console released by Sega in Japan in 1988, North America in 1989, and the PAL region in 1990. ... The Mega PC was manufactured and released by Amstrad in 1993 under licence from Sega, which was a similar, but unrelated system to the Sega TeraDrive. ... In computer science, 16-bit is an adjective used to describe integers that are at most two bytes wide, or to describe CPU architectures based on registers, address buses, or data buses of that size. ... The Altair 8800 was among the first microcomputers to be affordable by an individual, although it initially lacked peripherals and memory. ... The Sega Mega Drive ) is a video game console released by Sega in Japan in 1988, North America in 1989, and the PAL region in 1990. ... International Business Machines Corporation (known as IBM or Big Blue; NYSE: IBM) is a multinational computer technology and consulting corporation headquartered in Armonk, New York, USA. The company is one of the few information technology companies with a continuous history dating back to the 19th century. ... Sega Corporation ) is a Japanese multinational video game software and hardware developing company, and a former home computer and console manufacturer. ... Obsolescence is when a person or object is no longer wanted even though it is still in good working order. ... Generation (From the Greek γιγνμαι), also known as procreation, is the act of producing offspring. ... A stock market is a market for the trading of company stock, and derivatives of same; both of these are securities listed on a stock exchange as well as those only traded privately. ...


The TeraDrive allowed for Mega Drive games to be played the same time as the PC section is being used, as it is possible for the Mega Drive and PC hardware to interact with each other. It shipped with a software development kit (SDK) which made it possible to develop your own Mega Drive games, with a good example of this shown in the Puzzle Construction program which is mentioned in the Software Development Kit section. The operating system shipped with the system was IBM's DOS J4.0/V, which was similar to that of Windows 3.0. A software development kit (SDK or devkit) is typically a set of development tools that allows a software engineer to create applications for a certain software package, software framework, hardware platform, computer system, video game console, operating system, or similar. ... Windows 3. ...


The system's peripherals which were included or available separately, included 2 × Mega Drive pads, 1 × PS/2 Mouse, 1 × Sega branded PS/2 IBM keyboard and 1 × 3-button joystick. The Mouse and Mega Drive pads were practically identical to those found on the Mega Drive console version.


The PS/2 connector is used for connecting a keyboard and a mouse to a PC compatible computer system. ...

Contents

Technical specifications

Specifications [4] Model 1 Model 2 Model 3
Price (at launch) ¥148,000 ¥188,000 ¥248,000
Processor Intel 80286 (10 MHz), Motorola 68000, Zilog Z80
RAM (available/max) 640 KB/2.5 MB 1 MB/2.5 MB 2.5 MB/2.5 MB
Storage 1 FDD 2 FDDs 1 FDD, 1 30MB HDD
Graphics Modes
  • PC Mode
    • 640×480 pixels (262144 colors / 16 onscreen)
    • 320×200 pixels (262144 / 256; Mode 13h)
  • Mega Drive Mode
    • 320×224 pixels (512 / 64)
Input / Output Ports
  • PC
  • Mega Drive
    • 2 × DE-9M (9-pin male D-connectors)
    • 1 × Expansion
Operating System IBM DOS J4.0/V

Three models were available, ranging from ¥148,000 (USD $1100/GBP £580) to ¥248,000 (USD $1840/GBP £950). A monitor which was manufactured by a 3rd party company but with Sega branding, was available separately at a price of ¥79,800 (estimated USD $600/GPB £300 at the time), which was capable of displaying 15 kHz RGB video signals from the Mega Drive hardware and a 31 kHz VGA output from the PC hardware, both from the VGA connector.
The system's typical power consumption is in the region of 27 W. Processor can mean: A central processing unit of a computer. ... AMD 80286 at 12 MHz. ... A megahertz (MHz) is one million (106) hertz, a measure of frequency. ... The Motorola 68000 is a 32-bit CISC microprocessor core designed and marketed by Freescale Semiconductor (formerly Motorola Semiconductor Products Sector). ... One of the first Z80 microprocessors manufactured; the date stamp is from June 1976. ... Look up RAM, Ram, ram in Wiktionary, the free dictionary. ... This article or section does not cite any references or sources. ... A floppy disk is a data storage device that is composed of a disk of thin, flexible (floppy) magnetic storage medium encased in a square or rectangular plastic shell. ... Typical hard drives of the mid-1990s. ... Mode 13h (the h here stands for hexadecimal, so this is actually VGA mode 19) is a standard 256 colour mode on IBMs VGA graphics hardware. ... Energy Input: The energy placed into a reaction. ... Video Graphics Array (VGA) is a computer display standard first marketed in 1987 by IBM. VGA belongs to a family of earlier IBM video standards and largely remains backward compatible with them. ... It has been suggested that LPT, Centronics and IEEE 1284 be merged into this article or section. ... A male DE-9 connector used for a serial port on a PC style computer. ... The PS/2 connector is used for connecting a keyboard and a mouse to a PC compatible computer system. ... A male DE-9 connector. ... A male DE-9 connector. ... // An operating system (OS) is a set of computer programs that manage the hardware and software resources of a computer. ... International Business Machines Corporation (known as IBM or Big Blue; NYSE: IBM) is a multinational computer technology and consulting corporation headquartered in Armonk, New York, USA. The company is one of the few information technology companies with a continuous history dating back to the 19th century. ... Instructions on how to use the directory command. ... REDIRECT RGB color model ... Video Graphics Array (VGA) is a computer display standard first marketed in 1987 by IBM. VGA belongs to a family of earlier IBM video standards and largely remains backward compatible with them. ... The watt (symbol: W) is the SI derived unit of power, equal to one joule per second. ...


Processors

Main article: Sega Mega Drive#CPU

One of the main processors used for the system is the Intel 80286, which was released in 1982. However, at the time when the TeraDrive was released in 1991, this processor was almost 10 years out of date, with the more powerful 25 MHz Intel 80486 having already been released 2 years prior in 1989, thus making the TeraDrive's central processor 2 generations behind its time. The system also contains a Motorola 68000 and a Zilog Z80, the same processors which were used in the Mega Drive. The 68000 runs at 7.61 MHz and 7.67 MHz and the Z80 runs at 3.55 MHz and 3.58 MHz in PAL and NTSC consoles respectively. [1] The Sega Mega Drive ) is a video game console released by Sega in Japan in 1988, North America in 1989, and the PAL region in 1990. ... AMD 80286 at 12 MHz. ... Year 1982 (MCMLXXXII) was a common year starting on Friday (link displays the 1982 Gregorian calendar). ... Year 1991 (MCMXCI) was a common year starting on Tuesday (link will display the 1991 Gregorian calendar). ... // Overview The exposed die of an Intel 80486DX2 microprocessor. ... Year 1989 (MCMLXXXIX) was a common year starting on Sunday (link displays 1989 Gregorian calendar). ... The Motorola 68000 is a 32-bit CISC microprocessor core designed and marketed by Freescale Semiconductor (formerly Motorola Semiconductor Products Sector). ... One of the first Z80 microprocessors manufactured; the date stamp is from June 1976. ... Television encoding systems by nation. ... The references in this article would be clearer with a different and/or consistent style of citation, footnoting or external linking. ...


Input/Output Ports

The machine's front panel ports included 2 × Mega Drive pad ports which were similar in design to 9-pin male serial ports, and 2 PS/2 ports the the right side of the unit to accommodate for the mouse and keyboard. A male DE-9 connector used for a serial port on a PC style computer. ...


The system also contained several ports to its rear. In order from left to right: 9-pin male serial port, 25-pin parallel port for connection to a printer, stereo RCA jacks and composite NTSC video output for connection to a TV, analogue RGB for monitor connection, and a 2nd 9-pin male serial connector labelled "EXT", similar to that found on the rear of an original Mega Drive base unit. LPT is the original, yet still common, name of the parallel port interface on IBM PC-compatible computers. ... A panel of four RCA jacks, and three RCA (cinch; phono) plugs of various quality RCA jack in PlayStation 2 An RCA jack, also referred to as a phono connector or CINCH/AV connector, is a type of electrical connector which is commonly used in the audio/video market. ... The term composite can refer to several different things: A dental composite is an type of tooth filling material made of a plastic matrix containing high-strength quartz filler particles. ... The references in this article would be clearer with a different and/or consistent style of citation, footnoting or external linking. ... An analog or analogue signal is an allergy continuous in both time and amplitude. ... REDIRECT RGB color model ...


The motherboard also had a spare ISA slot available for expansion, with a hole at the rear of the unit to accommodate this. A motherboard is the central or primary circuit board making up a complex electronic system, such as a modern computer. ... This article or section does not adequately cite its references or sources. ...


Software Development Kit

The machine included IBM drivers bundled on a floppy disk, which enabled properly written software to operate in the machine's RAM and then run on the native Mega Drive hardware. One of the very few software titles included with the TeraDrive was a Puzzle Construction program, which included a PC-side editor suite for changing the features of a falling-block puzzle game, then playable on the Mega Drive side. A floppy disk is a data storage device that is composed of a disk of thin, flexible (floppy) magnetic storage medium encased in a square or rectangular plastic shell. ...


There was often speculation that the TeraDrive was specifically designed as a purpose-made Software Development Kit, to allow software makers to develop their software titles for the Mega Drive. However, given the release date of the TeraDrive (some years after the initial Mega Drive release), as well as the availability of Sega's own game development hardware, it is unlikely the TeraDrive was designed for this purpose.


There is very little English information known about software development on the TeraDrive, and information which is known is relatively scarce.


Amstrad Mega PC

Main article: Amstrad Mega PC

A similar, but unrelated system was manufactured by Amstrad and sold under the name Mega PC in PAL areas such as Europe and Australia. Its success was very shortlived due to its high retail price of £599 (about $1200). Given that it lacked several key features which the TeraDrive boasted, it made its price tag unattractive to consumers, even though both products were marketed in different countries. Although it boasted a higher specification than that of Sega's TeraDrive, it was unable to act as a Software Development Kit due to the inability to interact both the PC and the Mega Drive together, as it was essentially just a PC with a Mega Drive bundled inside. The Mega PC was manufactured and released by Amstrad in 1993 under licence from Sega, which was a similar, but unrelated system to the Sega TeraDrive. ... Amstrad is a manufacturer of electronics based in Brentwood in Essex, England and founded in 1968 by Sir Alan Michael Sugar in the UK. The name is a contraction of Alan Michael Sugar Trading. ... Television encoding systems by nation. ... World map showing the location of Europe. ... A software development kit (SDK or devkit) is typically a set of development tools that allows a software engineer to create applications for a certain software package, software framework, hardware platform, computer system, video game console, operating system, or similar. ...


Trivia

  • In the Sega Dreamcast game Segagaga, the supercomputer that runs all functions of Sega in the year 2025 is called the TeraDrive.[5]

The Dreamcast , code-named Dural, Dricas and Katana during development) is Segas fifth and final video game console and the successor to the Sega Saturn. ...

See also

The Sega Mega Drive ) is a video game console released by Sega in Japan in 1988, North America in 1989, and the PAL region in 1990. ... During its lifespan, the Sega Mega Drive and Genesis quite possibly received more officially licensed variations than any other console. ...

External links

  • Sega advertising the TeraDrive (YouTube)

References

  1. ^ OLD-COMPUTERS.COM Museum ~ Sega Teradrive. Retrieved on 2006-11-22.
  2. ^ a b Translated archived page of official Sega TeraDrive website (original page on archive.org)
  3. ^ http://findarticles.com/p/articles/mi_m0NEW/is_1991_August_19/ai_11148779
  4. ^ Sega / IBM TeraDrive. Retrieved on 2006-11-22.
  5. ^ http://www.everything2.com/index.pl?node_id=1103277&

[2] For the Manfred Mann album, see 2006 (album). ... November 22 is the 326th day (327th on leap years) of the year in the Gregorian calendar. ... For the Manfred Mann album, see 2006 (album). ... November 22 is the 326th day (327th on leap years) of the year in the Gregorian calendar. ...


 
 

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