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PlayStation 2

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PlayStation 2
Official PlayStation 2 logo
The two versions of the PS2 with an Eye Toy camera
ManufacturerSony Computer Entertainment
TypeVideo game console
GenerationSixth generation era
LifespanMarch 4, 2000 (JP)
October 26, 2000 (NA)
November 24, 2000 (EU)
Units sold103.6 million
MediaDVD
CD
CPU128-bit "Emotion Engine" clocked at 294 MHz
Online servicesGame-supplied, Central Station
Best-selling gameGran Turismo 3: A-Spec
PredecessorPlayStation
SuccessorPlayStation 3

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The PlayStation 2 (PS2) (Japanese: プレイステーション2) is Sony's second video game console, the successor to the PlayStation and the predecessor to the PlayStation 3. Its development was announced in March 1999, and it was first released in Japan on March 4, 2000, in North America on October 26, 2000 and in Europe on November 24, 2000.

The PS2 is part of the sixth generation era, and has become one of the fastest selling gaming consoles in history, with over 100 million units shipped by November 2005, beating the previous record holder, the PlayStation, by three years and nine months.

Games

Main article: List of PlayStation 2 games

The PlayStation brand's strength has led to strong third-party support for the system. Although the launch titles for the PS2 were unimpressive in 2000, the holiday season of 2001 saw the release of several best-selling and critically acclaimed games. Those PS2 titles helped the PS2 maintain and extend its lead in the video game console market, despite increased competition from the launches of the Microsoft Xbox and Nintendo GameCube. In several cases, Sony made exclusivity deals with publishers in order to pre-empt its competitors. Critically acclaimed games on the machine include the Grand Theft Auto and the ever-popular Final Fantasy (Square Enix) series, the latest two Metal Gear Solid titles, Devil May Cry and Devil May Cry 3, the SSX series, latest three Ace Combat titles, the Square Enix/Disney collaboration Kingdom Hearts, and first-party Sony Computer Entertainment brands such as the Gran Turismo, SOCOM, Ratchet & Clank and Jak and Daxter series, ICO, Shadow of the Colossus, God of War and the Everquest spin-offs Champions of Norrath and Champions: Return to Arms. The PS2 has also been the home to many music games such as the latest DDR games, and the newer rock game Guitar Hero.

By the end of March 2005, there were 5,277 PS2 titles released worldwide, accounting for cumulative sales of 824 million units. With backwards-compatibility to PlayStation games, the PS2 had a released software library of 13,020 titles after 5 years and 27 days, although the region-coding limits this quite severely, to 3,181 PS2 titles and 4,907 PS1 releases in Asia; 1,121 and 1,501 in Europe; and 975 and 1,335 in North America.

Hardware compatibility

PlayStation 2 default black 8MB Memory Card

The PS2 hardware can read both compact discs and DVDs. It is backwards compatible with older PlayStation (PS1) games, allows for DVD Video playback, and will play PS2 games off cheap CD-ROMs or higher-capacity DVD-ROMs. The ability to play DVD movies allowed consumers to more easily justify the PS2's relatively high price tag (in October 2000, the MSRP was $300) as it removed the need to buy an external DVD player (indeed, it could be said that the success of the DVD format was partly due to the PS2's ability to play DVDs, as the format seemed to appeal more to consumers after the console's launch). The PS2 also supports PS1 memory cards (for PS1 game saves only) and controllers as well. The PS2's Dual Shock 2 controller is essentially an upgraded PS1 Dual Shock; analog face, shoulder and D-pad buttons replaced the digital buttons of the original.

When it was released, the PS2 had many advanced features that were not present in other contemporary video game consoles, including its DVD capabilities and USB and IEEE 1394 expansion ports. It was not until late 2001 that the Microsoft Xbox became the second console with USB (1.1, with an Xbox-specific socket shape) and DVD support. (This is assuming the Nuon, an advanced DVD player graphics coprocessor, is not considered a console.)

Note that compatibility with USB devices is dependent on the software supporting said USB device. For example, the PS2 was not able to boot an ISO image from a USB flash drive - this problem was solved however with the publishing of the version 3.6 of Swap Magic software. On the other hand, Gran Turismo 4 can save screenshots to an USB device without any problems.

Software compatibility

Support for original PlayStation games was also an important selling point for the PS2, letting owners of an older system upgrade to the PlayStation 2 and keep their old software, and giving new users access to older games until a larger library was developed for the new system. As an added bonus, the PS2 had the ability to enhance PlayStation games by speeding up disc read time and/or adding texture smoothing to improve graphics. While the texture smoothing was universally effective (albeit with odd effects where transparent textures are used), faster disk reading could cause some games to fail to load or play correctly.

A handful of PlayStation titles (notably Metal Gear Solid: Special Missions) fail to run on the PS2 at all (Special Missions fails to recognise Metal Gear Solid at the disk swap screen, for example). This problem appears to have been rectified in the slimline versions of the PS2, where most of the previously unplayable PSone games can now be played. It is a common misconception that disk swapping in a game (for example, for multi-disk games or expansion packs) is not possible on the PS2. The anomalous failure of the above title at its disk swap screen may have given birth to this rumor. Software for all PlayStation consoles contains one of four region codes: for Japan and Asia: NTSC/J, North America: NTSC-U/C, Europe and Oceania: PAL, and China: NTSC/C[1].

Online play

With the purchase of a separate unit called the Network Adaptor (which is built into the newest system revision), some PS2 games support online multiplayer. Instead of having a unified, subscription-based online service like Xbox Live, online multiplayer on the PS2 is split between publishers and run on third-party servers. However, this comes at a price as any connection can connect to the Internet with a PS2, resulting in lag whenever slow connections are present. Most recent PS2 online games have been developed to exclusively only support broadband Internet access. Xbox Live exclusively requires a broadband Internet connection.

All newer online PS2 games (since 2003) are protected by the Dynamic Network Authentication System (DNAS). The purpose of this system is to prevent piracy and online cheating. DNAS will prevent games from being played online if they are determined to be pirated copies, or if they have been modified.

Home development

Main article: PS2 Linux
File:Linux kit.jpg
Linux for PlayStation 2

Sony released a version of the Linux operating system for the PS2 in a package that also includes a keyboard, mouse, Ethernet adapter and hard disk drive. Currently, Sony's online store states that the Linux kit is no longer for sale in North America. However as of July 2005, the European version was still available. (The kit boots by installing a proprietary interface, the Run-time environment which is on a region-coded DVD, so the European and USA kits each only work with a PS2 from that region).

In Europe and Australia, the PlayStation 2 comes with a free Yabasic interpreter on the bundled demo disc. This allows simple programs to be created for the PlayStation 2 by the end-user. This was included in a failed attempt to circumvent a UK tax by defining the console as a "computer" if it contained certain software.

A port of the NetBSD project is also available for the PS2.

It is also possible to listen to MP3 music and watch DivX movies with homebrew programs running in consoles that have a modchip installed or with network software like GameShark's Media Player.

Hardware revisions

The PlayStation 2 has undergone many revisions, some only of internal construction and others with substantial external changes. These are colloquially known amongst PlayStation 2 hardware hackers as V0, V1, V2, etc., up to V14 (as of 2005).

V0 was a Japanese model and was never sold in Europe or the US. These included a PCMCIA slot instead of the Expansion Bay (DEV9) port of newer models. V0 did not have a built-in DVD player and instead relied on an encrypted player that was copied to a memory card from an included CD-ROM (normally, the PS2 will only execute encrypted software from its memory card, but see PS2 Independence Exploit). V3 has a substantially different internal structure from the subsequent revisions, featuring several interconnected printed circuit boards. As of V4 everything was unified into one board, except the power supply. V5 introduces minor internal changes and the only difference between V6 (sometimes called V5.1) and V5 is the orientation of the Power/Reset switch board connector, which was reversed to prevent the use of no-solder modchips. V7 and V8 are also similar. Assembly of the PS2 moved to China with the V9 (model number SCPH-50000/SCPH-50001), which added the Infrared port for the optional DVD Remote Control, removed the widely unused FireWire port, added the capability to read DVD-RW and +RW discs, and a quieter fan. V10 and V11 have minor changes.

In September 2004 Sony unveiled the third major hardware revision (V12, model number SCPH-70000). Available in November 2004, it is smaller and thinner than the old version and includes a built-in Ethernet port. In some markets it also integrates a modem. Due to its thinner profile, it does not contain the 3.5" expansion bay, and therefore does not support the internal hard disk drive but due to the presence of USB 1.1 ports an external USB Hard disk can still be used, and now uses an external power supply, like the Gamecube. Although external USB enclosures are affordable the lack of internal hard disk has implicated a problem for users with perhaps little knowledge of the software required to enable the external disk functionality. For some consumers this is in fact a limitation, especially for the fans of titles such as Final Fantasy XI, which requires the use of this peripheral, and prevents the use of the official PS2 Linux kit. A product named HD Connect can be soldered into the unit giving hard drive support though, however IDE connections were completely removed in the v14 revision eliminating this option . It is widely believed that Sony has abandoned support for the hard drive. There are also some disputes on the numbering for this PS2 version, since there are actually two sub-versions of the SCPH-70000. One of them includes the old EE and GS chips, and the other contains the newer unified EE+GS chip, otherwise being identical. Since the V12 version had already been established for this model, there were some disputes regarding these sub-versions. Two propositions were to name the old model (EE and GS, separate chips) V11.5 and the newer model V12, and to name the old model V12 and the newer model V13. Currently, most people just use V12 for both models, or V12 for the old model and V13 for the newer one.

The V12 model was first released in black. A silver edition is available in the United Kingdom and Germany exclusively. It is unknown whether or not this will follow the color schemes of the older model.

File:Psx-5100.jpg
The Japanese PSX console.

There is also now a V14 model (SCPH-75001) which contains an integrated EE and GS [dubious – discuss], and different ASICs compared to previous revisions, some chips having a copyright date of 2005 compared to 2000 or 2001 for earlier models. It also has a different lens and some compatibility issues documented by Sony for earlier PS2 games.

Later hardware revisions had better compatibility with PlayStation games (Metal Gear Solid: VR Missions works on most silver models). However, the new Japanese slim models have more issues with playing PlayStation games than the first PS2 revisions. [citation needed]

Sony has also made a consumer device, called the PSX, that can be used as a digital video recorder or to burn DVDs in addition to playing PlayStation 2 games. The device was poorly received, with some major features absent from the first revisions of the hardware, and has thus far experienced very weak sales in Japan, in spite of major price drops [2]. The machine's future continues to be uncertain, with North American and European launches considered to be distant if at all.

In the beginning of 2005 it was found that some black slimline console power transformers bought between November and December 2004 were faulty and could overheat. Sony had to recall every one of them, supplying a replacement model made in 2005. To determine if you are affected by this recall, click here.

Accessories

File:Sony Dual Shock 2.JPG
DualShock 2

Main articles: DualShock, PlayStation 2 Expansion Bay

The PS2's DualShock2 controller is largely identical to the PlayStation's, with the same basic functionality; however, it includes analog pressure sensitivity on the face and shoulder buttons, is lighter and includes two more levels of vibration. The fact that the design didn't change pleased some consumers who were already used to the DualShock controller, however it disappointed others who found the analogue sticks awkward to use and were hoping for a more ergonomic design. [citation needed]

Optional hardware include DualShock or DualShock2 controllers, a PlayStation 2 DVD remote control, an internal/external hard disk for PlayStation 2, a Network adapter, PlayStation or PlayStation 2 memory cards, and various cables and interconnects: Multitap for PlayStation or PlayStation 2, Y-Pb-Pr, S-Video, RGB, SCART, VGA (for progressive scan games and PS2 Linux only) and composite video cables, RF modulator, USB camera ("EyeToy"), dual microphones (sold with and used exclusively for SingStar games), USB keyboard, mouse and a Headset. Unlike the original Playstation, which required that the use of an official Sony Playstation mouse to play mouse-compatible games, the few Playstation 2 games with mouse support work with standard PC-compatible USB mice. Early versions of the Playstation 2 could be networked via an iLink port, though this had little game support and was dropped. Anyway, the iLink 1394 port is rarely used because it does not supply electricity.

Technical Issues

Disc Read Error

Owners of early PS2 models purchased from launch until spring 2002 commonly reported faulty optical drives in their consoles. The earliest drives suffered from a constantly misaligning laser lens but later defects were the result of a shift in voltage to the laser itself. The first problem was relatively easy to remedy, but it required opening the machine's casing and tweaking a cog that controlled the lens' distance from the discs it was supposed to read, thus voiding the warranty. This usually didn't matter, as in most cases the warranty already had expired by the time such problems began to appear. The second fix involved the use of an oscillator. As time went on, more and more drives began breaking down and a class action lawsuit was filed against Sony. They had the option of either paying the requested fines in damages, or offering free repair and replacements at their discretion. [3] Sony chose the latter and, until February 2005, they honored their agreement. In the UK owners suffering from this flaw must pay Sony £50 (as of spring 2005) to get their machines repaired.

A second lawsuit is being filed against Sony for all of the above, plus claims that defective hardware is damaging media discs. The first hearings are set to commence in April and May, 2005. More information: PS2 Settlement

Technical specifications

The specifications of the PlayStation 2 console are as follows, with hardware revisions:

Emotion Engine CPU
Graphics Synthesizer GPU
I/O Processor (PlayStation 1 CPU) I/O Bus
  • CPU: 128 bit "Emotion Engine" clocked at 294 MHz, 10.5 million transistors
    • System Memory: 32 MB Direct Rambus or RDRAM (note that some computers use this type of RAM)
    • Memory Bus Bandwidth: 3.2 GB per second
    • Main processor: MIPS R5900 CPU core, 64 bit
    • Co-Processor: FPU (Floating Point Multiply Accumulator × 1, Floating Point Divider × 1)
    • Vector Units: VU0 and VU1 (Floating Point Multiply Accumulator × 9, Floating Point Divider × 1), 128 bit
    • Floating Point Performance: 6.2 GFLOPS (single precission 32-bit floating point)
    • 3D CG Geometric Transformation: 66 million polygons per second (1)
    • Compressed Image Decoder: MPEG-2
    • I/O Processor interconnection: Remote Procedure Call over a serial link, DMA controller for bulk transfer
    • Cache Memory: Instruction: 16KB, Data: 8KB + 16 KB (ScrP)
  • Graphics: "Graphics Synthesizer" clocked at 147 MHz
    • Variable from 256x224 to 1280x1024 pixels
    • DRAM Bus bandwidth: 47.0GB per second
    • DRAM Bus width: 2560-bit (composed of three independendent buses: 1024-bit write, 1024-bit read, 512-bit read/write)
    • Pixel Configuration: RGB:Alpha:Z Buffer (24:8, 15:1 for RGB, 16, 24, or 32-bit Z buffer)
    • Maximum Polygon Rate: 75 million polygons per second though with in game conditions (Lights, textures etc.) it performs up to 4 - 7 million Polygons/second.
    • Dedicated connection to: Main CPU and VU1
  • Sound: "SPU1+SPU2" (SPU1 is actually the CPU clocked at 8 MHz)
    • Number of voices: 48 hardware channels of ADPCM on SPU2 plus software-mixed channels
    • Sampling Frequency: 44.1 kHz or 48 kHz (selectable)
  • I/O Processor
    • CPU Core: Original PlayStation CPU (MIPS R3000A clocked at 33.8688 MHz or 37.5 MHz)
    • Sub Bus: 32 Bit
    • Connection to: SPU and CD/DVD controller.
    • Interface Types: 2 proprietary PlayStation controller ports (250KHz clock for PS1 and 500KHz for PS2 controllers), 2 proprietary Memory Card slots using MagicGate encryption (250KHz for PS1 cards, up to 2MHz for PS2 cards), Expansion Bay (PCMCIA on early models for PCMCIA Network Adaptor and External Hard Disk Drive) DEV9 port for Network Adaptor, Modem and Internal Hard Disk Drive, IEEE 1394 (only in SCPH 10xxx - 3xxxx), Infrared remote control port (SCPH 5000x and newer) (2), and 2 USB 1.1 ports with an OHCI-compatible controller.
  • Disc Drive type: 8x (PlayStation 2 format CD-ROM, PlayStation format CD-ROM) 4x (Supported DVD formats) Region-locked with anti-copy protection (Can't read "Gold Discs" aka normal CD-ROMs)
  • Supported Disc Media: PlayStation 2 format CD-ROM, PlayStation format CD-ROM, Compact Disc Audio, PlayStation format DVD-ROM (4.7 GB), DVD Video (4.7 GB). Later models are DVD-9 (8.5 GB Dual-Layer), DVD+RW, and DVD-RW compatible.

(1) Polygons per second under ideal circumstances (e.g. no texturing, lighting, or vertex colors applied). Some criticize these figures for being unrealistic, and not indicative of real-world performance. The true polygons per second figure with full textures, effects etc. is around 7 million.

(2) IEEE 1394 (FireWire)port removed and Infrared remote port added in SCPH-50000 and later hardware versions.

Price history

North America

(*Note: Canadian prices based on direct conversion from USD using the nominal rate from the dates specified)

Japan

United Kingdom

Taiwan

  • NT$10,900 (January 24, 2002, SCPH-30007, Launch Price)
  • NT$ 7,980 (January 1, 2003, SCPH-30007)
  • NT$ 6,980 (2003, SCPH-39007)
  • NT$ 6,980 (October 10, 2003, SCPH-50007)
  • NT$ 6,480 (January 1, 2004, SCPH-50007)
  • NT$ 5,888 (June 1, 2004, SCPH-50007)
  • NT$ 5,888 (November 3, 2004, SCPH-70007)

Australia

  • AU$199.95 (June 1 2006 Price Drop)

Russia

  • RUR 5500 (current)

Middle East

  • US$149 (current)

Portugal

  • EUR €129,99 (current)

Poland

  • PLN 2,599,00 zł (starting)
  • PLN 549,00 zł for Black Slim and 599,00 zł for Silver Slim (current)

See also

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