1.
PlayStation Portable
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The PlayStation Portable is a handheld game console developed by Sony. Development of the handheld was announced during E32003, and it was unveiled on May 11,2004, the system was released in Japan on December 12,2004, in North America on March 24,2005, and in the PAL region on September 1,2005. It primarily competed with the Nintendo DS, as part of the generation of video games. The PlayStation Portable became the most powerful system when launched. It was the first real competitor to Nintendos handheld domination, where many challengers, such as SNKs Neo Geo Pocket and Nokias N-Gage and it also features connectivity with the PlayStation 3, other PSPs and the Internet. It is the handheld console to use an optical disc format, Universal Media Disc. The original PSP model was replaced by a model with design changes in 2007. Another remodeling followed in 2008, PSP-3000, which included a new screen, a complete redesign, PSP Go, came in 2009, followed by a budget model, PSP-E1000, in 2011. The PSP line was succeeded by the PlayStation Vita, released in December 2011 in Japan, the PlayStation Vita features backward compatibility with many PlayStation Portable games digitally released on the PlayStation Network, via PlayStation Store. Shipments of the PlayStation Portable ended throughout 2014 worldwide, having sold 80 million units in its 10-year lifetime, Sony first announced development of the PlayStation Portable at a press conference before E32004. Although mock-ups of the system were not present at the conference or E3. Then-CEO of Sony Computer Entertainment Jose Villeta called the device the Walkman of the 21st Century in a reference to the multimedia capabilities. Several gaming websites were impressed by the handhelds computing capabilities and looked forward to the potential as a gaming platform. Nintendo had been dominating the market since launching its Game Boy in 1989, with the only close competitor being Segas Game Gear. Later offerings from both SNK and Nokia also failed to cut into Nintendos share, the PSP was called the first legitimate competitor to Nintendo’s dominance in the handheld market by an IDC analyst in 2004. The first concept images of the PSP appeared in November 2002 at the Sony Corporate Strategy Meeting and showed a PSP with flat buttons and no analog stick. Although some expressed concern over the lack of an analog joystick, in addition to announcing more details about the system and its accessories, Sony also released a list of 99 developer companies that had pledged support for the new handheld. Several PSP game demos, such as Konamis Metal Gear Acid and SCE Studio Liverpools Wipeout Pure were also shown at the conference
2.
PlayStation 3
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The PlayStation 3 is a home video game console developed by Sony Computer Entertainment. It is the successor to PlayStation 2, and is part of the PlayStation brand of consoles and it was first released on November 11,2006, in Japan, November 17,2006, in North America, and March 23,2007, in Europe and Australia. The PlayStation 3 mainly competes against consoles such as Microsofts Xbox 360, the console was first officially announced at E32005, and was released at the end of 2006. It was the first console to use Blu-ray Disc as its storage medium. In September 2009, the Slim model of the PlayStation 3 was released and it no longer provided the hardware ability to run PS2 games. It was lighter and thinner than the version, and featured a redesigned logo and marketing design. A Super Slim variation was released in late 2012, further refining and redesigning the console. The system had a start in the market but managed to recover. As of March 2016, PlayStation 3 has sold 85 million units worldwide, putting it about on par with Xbox 360 and its successor, the PlayStation 4, was released later in November 2013. On September 29,2015, Sony confirmed that sales of the PlayStation 3 were to be discontinued in New Zealand, in March 2017, the official site for PlayStation 3 in Japan was updated to state that it would be discontinued soon. Sony officially unveiled PlayStation 3 to the public on May 16,2005, at E32005, Video footage based on the predicted PlayStation 3 specifications was also shown. Two hardware configurations were also announced for the console, a 20 GB model, the 60 GB model was to be the only configuration to feature an HDMI port, Wi-Fi internet, flash card readers and a chrome trim with the logo in silver. Both models were announced for a worldwide release, November 11,2006, for Japan and November 17,2006, for North America. On September 6,2006, Sony announced that PAL region PlayStation 3 launch would be delayed until March 2007, because of a shortage of materials used in the Blu-ray drive. Also, the price of the Japanese 20 GB model was reduced by over 20%. During the event, Sony showed 27 playable PS3 games running on final hardware, PlayStation 3 was first released in Japan on November 11,2006, at 07,00. According to Media Create,81,639 PS3 systems were sold within 24 hours of its introduction in Japan, soon after its release in Japan, PS3 was released in North America on November 17,2006. Reports of violence surrounded the release of PS3, a customer was shot, campers were robbed at gunpoint, customers were shot in a drive-by shooting with BB guns, and 60 campers fought over 10 systems
3.
YouTube
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YouTube is an American video-sharing website headquartered in San Bruno, California. The service was created by three former PayPal employees—Chad Hurley, Steve Chen, and Jawed Karim—in February 2005, Google bought the site in November 2006 for US$1.65 billion, YouTube now operates as one of Googles subsidiaries. Unregistered users can watch videos on the site, while registered users are permitted to upload an unlimited number of videos. Videos deemed potentially offensive are available only to registered users affirming themselves to be at least 18 years old, YouTube earns advertising revenue from Google AdSense, a program which targets ads according to site content and audience. YouTube was founded by Chad Hurley, Steve Chen, and Jawed Karim, Hurley had studied design at Indiana University of Pennsylvania, and Chen and Karim studied computer science together at the University of Illinois at Urbana-Champaign. Karim could not easily find video clips of either event online, Hurley and Chen said that the original idea for YouTube was a video version of an online dating service, and had been influenced by the website Hot or Not. YouTube began as a venture capital-funded technology startup, primarily from an $11.5 million investment by Sequoia Capital between November 2005 and April 2006, YouTubes early headquarters were situated above a pizzeria and Japanese restaurant in San Mateo, California. The domain name www. youtube. com was activated on February 14,2005, the first YouTube video, titled Me at the zoo, shows co-founder Jawed Karim at the San Diego Zoo. The video was uploaded on April 23,2005, and can still be viewed on the site, YouTube offered the public a beta test of the site in May 2005. The first video to reach one million views was a Nike advertisement featuring Ronaldinho in November 2005. Following a $3.5 million investment from Sequoia Capital in November, the site grew rapidly, and in July 2006 the company announced that more than 65,000 new videos were being uploaded every day, and that the site was receiving 100 million video views per day. The site has 800 million unique users a month and it is estimated that in 2007 YouTube consumed as much bandwidth as the entire Internet in 2000. The choice of the name www. youtube. com led to problems for a similarly named website, the sites owner, Universal Tube & Rollform Equipment, filed a lawsuit against YouTube in November 2006 after being regularly overloaded by people looking for YouTube. Universal Tube has since changed the name of its website to www. utubeonline. com, in October 2006, Google Inc. announced that it had acquired YouTube for $1.65 billion in Google stock, and the deal was finalized on November 13,2006. In March 2010, YouTube began free streaming of certain content, according to YouTube, this was the first worldwide free online broadcast of a major sporting event. On March 31,2010, the YouTube website launched a new design, with the aim of simplifying the interface, Google product manager Shiva Rajaraman commented, We really felt like we needed to step back and remove the clutter. In May 2010, YouTube videos were watched more than two times per day. This increased to three billion in May 2011, and four billion in January 2012, in February 2017, one billion hours of YouTube was watched every day
4.
PlayStation
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It is created and owned by Sony Interactive Entertainment since December 3,1994, with the launch of the original PlayStation console in Japan. The original console in the series was the first video game console to ship 100 million units,9 years and 6 months after its initial launch and its successor, the PlayStation 2, was released in 2000. The PlayStation 2 is the home console to date, having reached over 155 million units sold as of December 28,2012. Sonys next console, the PlayStation 3, was released in 2006 and has sold over 80 million consoles worldwide as of November 2013. Sonys latest console, the PlayStation 4, was released in 2013, selling 1 million consoles in its first 24 hours on sale, the first handheld game console in the PlayStation series, sold a total of 80 million units worldwide by November 2013. Its successor, the PlayStation Vita, which launched in Japan on December 17,2011, PlayStation TV is a microconsole and a non-portable variant of the PlayStation Vita handheld game console. The main series of controllers utilized by the PlayStation series is the DualShock, the PlayStation Network is an online service with over 110 million users worldwide. PlayStation Mobile is a framework that provides PlayStation content on mobile devices. Content set to be released under the framework consist of only original PlayStation games currently, 7th generation PlayStation products also use the XrossMediaBar, which is an award-winning graphical user interface. A new touch screen-based user interface called LiveArea was launched for the PlayStation Vita, additionally, PlayStation 2 and original PlayStation 3 consoles also featured support for Linux-based operating systems, though this has since been discontinued. The series has also known for its numerous marketing campaigns. The consoles origins date back to 1988 where it was originally a joint project between Nintendo and Sony to create a CD-ROM for the Super Famicom. However, a day after the announcement at CES, Nintendo announced that it would be breaking its partnership with Sony, opting to go with Philips instead but using the same technology. The deal was broken by Nintendo after they were unable to come to an agreement on how revenue would be split between the two companies. The breaking of the partnership infuriated Sony President Norio Ohga, who responded by appointing Kutaragi with the responsibility of developing the PlayStation project to rival Nintendo. At that time, negotiations were still on-going between Nintendo and Sony, with Nintendo offering Sony a non-gaming role regarding their new partnership with Philips. This proposal was rejected by Kutaragi who was facing increasing criticism over his work with regard to entering the video game industry from within Sony. At the meeting, Kutaragi unveiled a proprietary CD-ROM-based system he had working on which involved playing video games with 3D graphics to the board
5.
PlayStation (console)
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The PlayStation is a home video game console developed and marketed by Sony Computer Entertainment. The console was released on 3 December 1994 in Japan,9 September 1995 in North America,29 September 1995 in Europe, the console was the first of the PlayStation lineup of home video game consoles. It primarily competed with the Nintendo 64 and the Sega Saturn as part of the generation of video game consoles. The PlayStation is the first computer entertainment platform to ship 100 million units, in 2000, a redesigned, slim version called the PSone was released, replacing the original grey console and named appropriately to avoid confusion with its successor, the PlayStation 2. In 1999, Sony announced the successor to the PlayStation, the PlayStation 2, which is compatible with the PlayStations DualShock controller and games. The last PSone units were sold in winter 2004 before it was discontinued in March 2005. The inception of what would become the released PlayStation dates back to 1986 with a joint venture between Nintendo and Sony, Nintendo approached Sony to develop a CD-ROM add-on, tentatively titled the Play Station or SNES-CD. A contract was signed, and work began, Kutaragi was nearly fired by Sony because he was originally working with Nintendo on the side without Sonys knowledge. It was then-CEO, Norio Ohga, who recognized the potential in Kutaragis chip, Ohga kept Kutaragi on at Sony, and it was not until Nintendo cancelled the project that Sony decided to develop its own console. This was also to be the used in SNES-CDs, giving a large degree of control to Sony despite Nintendos leading position in the video gaming market. The product, dubbed the Play Station was to be announced at the May 1991 Consumer Electronics Show, yamauchi decided that the contract was totally unacceptable and he secretly cancelled all plans for the joint Nintendo-Sony SNES CD attachment. After the collapse of the project, Sony briefly considered allying itself with Sega to produce a stand-alone console. The Sega CEO at the time, Tom Kalinske, took the proposal to Segas Board of Directors in Tokyo, Kalinske, in a 2013 interview recalled them saying that’s a stupid idea, Sony doesnt know how to make hardware. They don’t know how to make software either, why would we want to do this. The federal judge presiding over the case denied the injunction and, in October 1991, however, it is theorized that only 200 or so of these machines were ever produced. However, Sony decided in early 1993 to begin reworking the Play Station concept to target a new generation of hardware and software. As part of process the SNES cartridge port was dropped. Early advertising prior to the launch in North America referenced PSX
6.
PlayStation technical specifications
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The PlayStation technical specifications describe the various components of the original PlayStation video game console. LSI CoreWare CW33300-based core MIPS R3000A-compatible 32-Bit RISC CPU MIPS R3051 with 5KB L1 cache, the microprocessor was manufactured by LSI Logic Corp. with technology licensed from SGI. Operating performance,10 MIPS Documented device mode is to read three RLE-encoded 16×16 macroblocks, run IDCT and assemble a single 16×16 RGB macroblock, output data may be transferred directly to GPU via DMA. It is possible to overwrite IDCT matrix and some additional parameters, features, Compatible with MJPEG and H.261 files Directly connected to CPU bus System Control Coprocessor This unit is part of the CPU. Modified from the original R3000A cop0 architecture, with the addition of a few registers, controls memory management through virtual memory technique, system interrupts, exception handling, and breakpoints. 2 MiB main EDO DRAM Additional RAM is integrated with the GPU and SPU, cache RAM for CPU core and CD-ROM. See the relevant sections for details, flash RAM support through the use of memory cards, see below
7.
PlayStation 2 models
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There were many revisions of the PlayStation 2 in its history from 2000 to 2013, some only of internal construction and others involving substantial external changes. These are colloquially known among PS2 hardware hackers as V0, V1, each region receives a different model number, for example, the V18 was released in North America as SCPH-90001, in Australia as SCPH-90002, and in Hong Kong as SCPH-90006. The final digit is a code with no bearing on the hardware, many games and DVDs are restricted to certain regions. The PS2 is primarily differentiated between models with the original fat case design, and slimline models introduced at the end of 2004, in 2010 a television incorporating a PS2 was introduced. Three of the original PS2 launch models were sold in Japan. These models instead included a PCMCIA slot, sCPH-10000 and SCPH-15000 did not have built-in DVD movie playback and instead relied on encrypted playback software that was copied to a memory card from an included CD-ROM. V3 had a different internal structure from the subsequent revisions. In V4 everything except the power supply was unified onto one board, v5 also introduced a more reliable laser than the ones used in previous models. V7 and V8 included only minor revisions to V6, beginning with model SCPH-500xx, the i. LINK port was removed. An infrared receiver was added for use with a remote to control DVD playback, the PS2 standard color is matte black. The small PlayStation logo on the front of the disc tray could be rotated 90 degrees and this feature is also used on slimline consoles. In September 2004, Sony unveiled its third major hardware revision, available in late October 2004, it is smaller, thinner, and quieter than the older versions and includes a built-in Ethernet port. Due to its profile, it does not contain the 3.5 expansion bay. It also lacks an internal power supply, similar to the GameCube, the removal of the expansion bay has been criticized as a limitation due to the existence of titles such as Final Fantasy XI, which require the use of the HDD. The official PS2 Linux also requires an expansion bay to function, currently only the modified Multitap is sold in stores, however, these are also compatible with the older versions, and also added support for multiple memory cards on some games. Third-party connectors can be soldered into the unit giving hard drive support, however, IDE connections were removed in the V14 revision. Certain mod chips enable the use of a USB hard drive or other storage device. There are two sub-versions of the SCPH-700xx, one with the old EE and GS chips, and the other with the newer unified EE+GS chip, but otherwise are identical
8.
PlayStation 2 technical specifications
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The PlayStation 2 technical specifications describe the various components of the PlayStation 2 video game console. The sixth-generation hardware of the PlayStation 2 video game consists of various components. At the heart of the configuration is its central processing unit. The CPU heavily relies on its integration with two vector processing units, known as VPU0 and VPU1, the Graphics Synthesizer, and a floating-point unit in order to render 3D graphics. Other components, such as the systems DVD-ROM optical drive and DualShock 2 controller, provide the software, PlayStation 2 software is distributed on CD-ROM and DVD-ROM. In addition, the console can play audio CDs and DVD movies and this is accomplished through the inclusion of the original PlayStations CPU which also serves as the PS2s I/O processor. The PS2 also supports limited functionality with PS1 memory cards and controllers, the PS2s DualShock 2 controller is an upgraded version of the PS1s DualShock with analog face, shoulder and D-pad buttons replacing the digital buttons of the original. Like its predecessor, the DualShock 2 controller features force feedback technology, the standard PlayStation 2 memory card has an 8 MB capacity and uses Sonys MagicGate encryption. This requirement prevented the production of cards by third parties who did not purchase a MagicGate license. Memory cards without encryption can be used to store PlayStation game saves, there are a variety of non-Sony manufactured memory cards available for the PlayStation 2, allowing for a larger memory capacity than the standard 8 MB. However their use is unsupported and compatibility is not guaranteed and these memory cards can have up to 128 MB storage space. The console also features USB and IEEE1394 expansion ports, compatibility with USB and IEEE1394 devices is dependent on the software supporting the device. For example, the PS2 BIOS will not boot an ISO image from a USB flash drive or operate a USB printer, by contrast, Gran Turismo 4 and Tourist Trophy are programmed to save screenshots to a USB mass storage device and print images on certain USB printers. A PlayStation 2 HDD can be installed via the bay in the back of the console. Instruction set, MIPS III, MIPS IV subset with Sonys proprietary 107 vector SIMD multimedia instructions, the custom instruction set was implemented by grouping the two 64-bit integer ALUs. 32-bit FPU coprocessor with 6 stage long pipeline, 32-bit VLIW-SIMD vector units at 147.456 MHz, VPU0 and VPU1 each VPU contains a vector unit, instruction cache, data cache and interface unit. VPU1 has an additional EFU unit and it also allowed vector quantization for 2D graphics data. This extended memory provides 16 kilobytes of fast RAM available to be used by the application, scratchpad memory can be used to store temporary data that is waiting to be sent via DMA or for any other temporary storage that the programmer can define
9.
PlayStation 3 models
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The PlayStation 3 video game console has been produced in various models during its life cycle. Since then, Sony have released two redesigned models, the Slim and Super Slim models. As of December 2013, the number of consoles sold is estimated at 77 million. There are several original PlayStation 3 hardware models, which are referred to by the size of their included hard disk drive,20,40,60,80. Although referred to by their HDD size, the capabilities of the consoles vary by region and release date. The only difference in the appearance of the first five models was the color of the trim, number of USB ports, compatibility issues with games for both systems are detailed in a public database hosted by the manufacturer. All models, excluding the 20 GB model, include 802.11 b/g Wi-Fi, in addition to all of the features of the 20 GB model, the 60 GB model has internal IEEE802.11 b/g Wi-Fi, multiple flash card readers and a chrome colored trim. In terms of hardware, the 80 GB model CECHE released in South Korea is identical to the 60 GB model CECHC released in the PAL regions, however, it retains the Graphics Synthesizer GPU resulting in a hybrid hardware and software emulation. Due to the elimination of the Emotion Engine and its replacement with a software-emulated version and this was due to the removal of Graphics Synthesizer GPU, which stripped the units of all PlayStation 2 based hardware. No official Wi-Fi or flash card readers were ever released by Sony for the 20 GB system. As of September 2009, Sony had placed no further emphasis on these proposed add-ons. It was rumored that the Cell processors in the third-generation PS3s would move from a 90 nm process to the newer 65 nm process, which SCEI CEO Kaz Hirai later confirmed and this change lowers the power consumption of the console and makes it less expensive to produce. The Cell microprocessor has moved to a 45 nm manufacturing process, which lets it run cooler and quieter than previous models, the RSX moved to a 40 nm process in the latest revision. The PS3 slim also includes support for CEC which allows control of the console over HDMI by using the TVs remote control, the PS3 Slim no longer has the main power switch like the previous PS3 models, similar to redesigned slimline PlayStation 2. As of October 2011, PS2 classics are available for purchase in the PlayStation Store, the PS3 slim was officially released on September 1,2009, in North America and Europe and on September 3,2009, in Japan, Australia and New Zealand. However, some such as Amazon. com, Best Buy. The PS3 Slim sold in excess of a million units in its first 3 weeks on sale. S, federal Communications Commission filings as the PS3 CECH-2000B. Although no North American bundles have been announced for the 250 GB PS3 slim, in July 2010, Sony announced two new sizes of Slim PS3,160 GB and 320 GB, with the 120 GB model being discontinued in Japan
10.
PlayStation 3 technical specifications
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The PlayStation 3 technical specifications describe the various components of the PlayStation 3 video game console. The PS3 uses the Cell microprocessor, which is made up of one 3.2 GHz PowerPC-based Power Processing Element, a seventh runs in a special mode and is dedicated to aspects of the OS and security, and an eighth is a spare to improve production yields. The PS3 has 256 MB of Rambus XDR DRAM, clocked at CPU die speed. The PPE has 64 KB L1 cache and 512 KB L2 cache, while the SPEs have 2 MB local memory, according to Nvidia, the RSX—the graphics processing unit —is based on the NVIDIA G70 architecture. The GPU is clocked at 500 MHz and makes use of 256 MB GDDR3 RAM clocked at 650 MHz with a transmission rate of 1.3 GHz. The RSX has a floating-point performance of 400.4 GFLOPS, to date, the PS3 has had several component revisions which serve to reduce power consumption. This in turn results in production savings, lower production, lower cooling requirements. Since launch, the Cell processor has shrunk from 90 nm to 45 nm, the RSX GPU has also seen reduction in size over periodic revisions of the PS3. Major improvements were introduced with the PS3 Slim, on all models of the PS3, the last seven characters of the serial number make up the consoles model number. This begins with CECH, followed by a letter indicating what model the system is, the last two characters of the model number indicate what region the system is from. The PS3 supports numerous SDTV and HDTV resolutions and connectivity options, the PS3 slim features an upgraded HDMI chip that allows bitstreaming of lossless audio codecs to an external receiver. For the optical drive, a wide variety of DVD and CD formats are supported. A20,40,60,80,120,160,250,320, in the early 60 GB and 80 GB configurations, flash memory can also be used, either Memory Sticks, CompactFlash cards, or SD/MMC cards. All models support USB memory devices, flash drives and external drives are both automatically recognized. However, they must be formatted with the FAT32 file system. For communication, the system sported four USB2.0 ports at the front on the 20 and 60 GB models as well as the NTSC80 GB model, but the 40 GB and 80 GB PAL models only have two USB ports. All models released after August 2008 have been reduced to two USB ports, as well as dropping CompactFlash and SD card support, one Gigabit Ethernet port, Bluetooth 2.0 support, and built-in Wi-Fi. The original PlayStation 3 console is approximately 5 kg,325 mm ×98 mm ×274 mm, the case was designed by Teiyu Goto of Sony, and uses the Spider-Man font
11.
PlayStation 4
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The PlayStation 4 is a home video game console developed by Sony Computer Entertainment. It competes with Nintendos Wii U and Microsofts Xbox One, as part of the generation of video game consoles.84 teraflops. The consoles controller was redesigned and improved over the PlayStation 3, with improved buttons and analog sticks. Heightened demand also helped Sony top global console sales, by the end of 2016, more than 53 million consoles have been sold worldwide, with more than 57 million shipped. All models, including the original sold in 2013, support HDR10 high-dynamic-range color, according to lead architect Mark Cerny, development of Sonys fourth video game console began as early as 2008. Less than two earlier, the PlayStation 3 had launched after months of delays due to issues with production. The delay placed Sony almost a year behind Microsofts Xbox 360, PlayStation Europe CEO Jim Ryan said Sony wanted to avoid repeating the same mistake with PS3s successor. In designing the system, Sony worked with software developer Bungie, in 2012, Sony began shipping development kits to game developers, consisting of a modified PC running the AMD Accelerated Processing Unit chipset. These development kits were known as Orbis, in early 2013, Sony announced that an event known as PlayStation Meeting 2013 would be held in New York City, U. S. on February 20,2013, to cover the future of PlayStation. Sony officially announced the PlayStation 4 at the event and it revealed details about the consoles hardware and discussed some of the new features it will introduce. Sony also showed off real-time footage of games in development, as well as some technical demonstrations, the design of the console was unveiled in June 2013 at the Electronic Entertainment Expo, and the initial recommended retail prices of $399, €399, and £349 given. The console was released on November 15,2013 in the United States and Canada, by the end of 2013, the PS4 was launched in more European, Asian and South American countries The PS4 released in Japan at ¥39,980 on February 22,2014. Sony finalized a deal with the Chinese government in May 2014 to sell its products in mainland China, and the PS4 will be the first product to be released. Kazuo Hirai, chief officer of Sony, said in May, The Chinese market. I think that we will be able to replicate the kind of success we have had with PS4 in other parts of the world in China. In September 2015, Sony reduced the price of the PS4 in Japan to ¥34,980, with similar price drops in other Southeast Asian markets. The first official sub £300 PS4 bundle was the £299.99 Uncharted Nathan Drake Collection 500GB, released in the UK on October 9,2015, a 1TB £329.99 version was offered at the same time. On October 9,2015, the first official cut of the PS4 in North America was announced
12.
PlayStation models
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A number of models of Sonys PlayStation video game console were produced. The PlayStation went through a number of variants during its production run, from an external perspective, the most notable change was the gradual reduction in the number of external connectors from the back of the unit. This started very early on with the original Japanese launch units, the SCPH-1000, released on December 3,1994, was the model that had an S-Video port. Also, the first models had problems with function and developers had to use another function instead. The CD player also included reverberation effects unique to those systems until the release of the PS one in 2000 and this model was followed by the SCPH-550x and exclusive PAL SCPH-5552 units, released in April 1997. Starting with the SCPH-550x series, PAL variants had the power, originally, the PlayStation was supposed to have provision on Video CD support, but this feature was only included on the Asian exclusive SCPH-5903 model. New to the SCPH-700x series was the introduction of the Sound Scope - light show music visualizations and these were accessible by pressing the Select button while playing any normal audio CD in the systems CD player. While watching these visualizations, players could add various effects like color cycling or motion blur. These were seen on the SCPH-700x, 750x, 900x, the final revision to the original PlayStation was the SCPH-900x series, released in May 1999. These had the hardware as the SCPH-750x models, except the parallel port was removed. It also incorporated a modified version of the menu design previously used only on PAL consoles. The later revision was functionally identical, but reduced manufacturing cost by moving to more highly integrated chips. There were also debugging consoles - these were generally in blue or green cases, although there were some special production units that were grey. The debug units were designed to be as close as possible to retail consoles, the reason for the two different case colors was a hardware change that Sony had made fairly early in the PlayStation production cycle - the original machines were built using Rev. They also used VRAM to store the video data - the later models used Rev, C silicon and SGRAM - although the two chipsets had very similar performance, they were not identical - the Rev. Because this made the two machine types quite significantly different from other, you had to test your title on both of them before submitting it. The blue debugs had the old silicon and the green ones had the new silicon, in 1997, Sony released a version of the PlayStation called the Net Yaroze. Naturally, the Net Yaroze lacked many of the features the full developer suite provided, programmers were also limited by the 2 MB of total game space that Net Yaroze allowed
