Everything about Computer Game totally explained
A
personal computer game (also known as a
computer game or simply
PC game) is a
video game played on a
personal computer, rather than on a
video game console or
arcade machine. Computer games have evolved from the simple graphics and gameplay of early titles like
Spacewar!, to a wide range of more visually advanced titles.
PC games are created by one or more
game developers, often in conjunction with other specialists (such as
game artists) and either published independently or through a third party
publisher. They may then be distributed on physical media such as
DVDs and
CDs, as Internet-downloadable
shareware, or through online delivery services such as
Direct2Drive and
Steam. PC games often require specialized hardware in the user's computer in order to play, such as a specific generation of
graphics processing unit or an
Internet connection for online play, although these
system requirements vary from game to game.
Computer games and
game addiction are often the subject of criticism, focusing largely on the influence of objectionable content and prolonged gameplay on
minors. The
Entertainment Software Association and other groups maintain that parents are responsible for moderating their children's behaviour, although the controversy has prompted attempts to control the sale of certain games in the
United States.
History
Early growth
Although personal computers only became popular with the development of the
microprocessor,
mainframe and
minicomputers, computer gaming has existed since at least the 1960s. One of the first computer games was developed in
1961, when
MIT students Martin Graetz and
Alan Kotok, with MIT employee
Steve Russell, developed
Spacewar! on a
PDP-1 computer used for statistical calculations.
The first generation of PC games were often
text adventures or
interactive fiction, in which the player communicated with the computer by entering commands through a keyboard. The first text-adventure,
Adventure, was developed for the
PDP-11 by Will Crowther in
1976, and expanded by Don Woods in
1977. By the 1980s, personal computers had become powerful enough to run games like
Adventure, but by this time, graphics were beginning to become an important factor in games. Later games combined textual commands with basic graphics, as seen in the SSI
Gold Box games such as
Pool of Radiance, or
Bard's Tale.
By the mid-1970s, games were developed and distributed through
hobbyist groups and gaming magazines, such as
Creative Computing and later
Computer Gaming World. These publications provided game code that could be typed into a computer and played, encouraging readers to submit their own software to competitions.
Industry crash
As the video game market became flooded with poor-quality games created by numerous companies attempting to enter the market, and over-production of high profile releases such as the
Atari 2600 adaptation of
E.T. and
Pacman grossly underperformed, the popularity of personal computers for education rose dramatically. In 1983, consumer interest in video games dwindled to historical lows, as interest in computer games and the MTV-fueled music industry rose.
The effects of the crash were largely limited to the console market, as established companies such as
Atari posted record losses over subsequent years. Conversely, the home computer market boomed, as sales of low-cost colour computers such as the
Commodore 64 rose to record highs and developers such as
Electronic Arts benefited from increasing interest in the platform.
Further improvements to game artwork were made possible with the introduction of the first
sound cards, such as
AdLib's Music Synthesizer Card, in 1987. These cards allowed
IBM PC compatible computers to produce complex sounds using
FM synthesis, where they'd previously been limited to simple tones and beeps. However, the rise of the
Creative Labs Sound Blaster card, which featured much higher sound quality due to the inclusion of a
PCM channel and
digital signal processor, led AdLib to file for bankruptcy in 1992.
The year before,
id Software had produced one of the first
first-person shooter games,
Hovertank 3D, which was the company's first in their line of highly influential games in the genre. The same team went on to develop
Wolfenstein 3D in 1992, which helped to popularize the genre, kick-starting a genre that would become one of the highest-selling in modern times. The game was originally distributed through the
shareware distribution model, allowing players to try a limited part of the game for free but requiring payment to play the rest, and represented one of the first uses of
texture mapping graphics in a popular game, along with
Ultima Underworld.
While leading
Sega and
Nintendo console systems kept their CPU speed at 3-7
MHz, the
486 PC processor ran much faster, allowing it to perform many more calculations per second. The 1993 release of
Doom on the PC was a breakthrough in 3D graphics, and was soon ported to various game consoles in a general shift toward greater realism.
Many early PC games included extras such as the peril-sensitive sunglasses that shipped with
The Hitchhiker's Guide to the Galaxy. These extras gradually became less common, but many games were still sold in the traditional over-sized boxes that used to hold the extra "
feelies". Today, such extras are usually found only in Special Edition versions of games, such as Battlechests from
Blizzard .
Contemporary gaming
By 1995, the rise of
Microsoft Windows and success of 3D console titles such as
Super Mario 64 sparked great interest in
hardware accelerated 3D graphics on the PC, and soon resulted in attempts to produce affordable solutions with the
ATI Rage,
Matrox Mystique and
Silicon Graphics ViRGE.
Tomb Raider, which was released in 1996, was one of the first third person shooter games and was praised for its revolutionary graphics. As 3D graphics libraries such as
DirectX and
OpenGL matured and knocked proprietary interfaces out of the market, these platforms gained greater acceptance in the market, particularly with their demonstrated benefits in games such as
Unreal. However, major changes to the
Microsoft Windows operating system, by then the market leader, made many older
MS-DOS-based games unplayable on
Windows NT, and later,
Windows XP (without using an
emulator, such as
DOSbox).
The faster graphics accelerators and improving
CPU technology resulted in increasing levels of realism in computer games. During this time, the improvements introduced with products such as
ATI's
Radeon R300 and
NVidia's
GeForce 6 Series have allowed developers to increase the complexity of modern
game engines. PC gaming currently tends strongly toward improvements in 3D graphics.
Unlike the generally accepted push for improved graphical performance, the use of
physics engines in computer games has become a matter of debate since announcement and 2005 release of the
AGEIA PhysX PPU, ostensibly competing with
middleware such as the
Havok physics engine. Issues such as difficulty in ensuring consistent experiences for all players, and the uncertain benefit of first generation PhsyX cards in games such as and
City of Villains, prompted arguments over the value of such technology.
Similarly, many game publishers began to experiment with new forms of marketing. Chief among these alternative strategies is
episodic gaming, an adaptation of the older concept of
expansion packs, in which game content is provided in smaller quantities but for a proportionally lower price. Titles such as took advantage of the idea, with mixed results rising from concerns for the amount of content provided for the price.
PC game development
Game development, as with
console games, is generally undertaken by one or more
game developers using either standardised or proprietary tools. While games could previously be developed by very small groups of people, as in the early example of
Wolfenstein 3D, many popular computer games today require large development teams and budgets running into the millions of dollars.
PC games are usually built around a central piece of software, known as a
game engine, that simplifies the development process and enables developers to easily port their projects between platforms. Unlike most consoles, which generally only run major engines such as
Unreal Engine 3 and
RenderWare due to restrictions on
homebrew software, personal computers may run games developed using a larger range of software. As such, a number of alternatives to expensive engines have become available, including
open source solutions such as
Crystal Space,
OGRE and
DarkPlaces.
User-created modifications
The multi-purpose nature of personal computers often allows users to modify the content of installed games with relative ease. Since console games are generally difficult to modify without a proprietary
software development kit, and are often protected by legal and physical barriers against tampering and
homebrew software, it's generally easier to modify the personal computer version of games using common, easy-to-obtain software. Users can then distribute their customised version of the game (commonly known as a
mod) by any means they choose.
The inclusion of map editors such as
UnrealEd with the retail versions of many games, and others that have been made available online such as
GtkRadiant, allow users to create modifications for games easily, using tools that are maintained by the games' original developers. In addition, companies such as
id Software have released the
source code to older game engines, enabling the creation of entirely new games and major changes to existing ones.
Modding had allowed much of the community to produce game elements that wouldn't normally be provided by the developer of the game, expanding or modifying normal gameplay to varying degrees. One notable example is the
Hot Coffee mod for the PC port of, which enables access to an abandoned sex minigame by simply modifying a
bit of the game's data file.
Distribution
Physical distribution
Computer games are typically sold on standard storage media, such as
compact discs,
DVD, and
floppy disks. These were originally passed on to customers through
mail order services, although retail distribution has replaced it as the main distribution channel for video games due to higher sales. Different formats of
floppy disks were initially the staple storage media of the 1980s and early 1990s, but have fallen out of practical use as the increasing sophistication of computer games raised the overall size of the game's data and program files.
The introduction of complex
graphics engines in recent times has resulted in additional storage requirements for modern games, and thus an increasing interest in
CDs and
DVDs as the next compact storage media for personal computer games. The rising popularity of DVD drives in modern PCs, and the larger capacity of the new media (a single-layer DVD can hold up to 4.7
gigabytes of data, more than five times as much as a single CD), have resulted in their adoption as a format for computer game distribution. To date, CD versions are still offered for most games, while some games offer both the CD and the DVD versions.
Shareware
Shareware marketing, whereby a limited or demonstration version of the full game is released to prospective buyers without charge, has been used as a method of distributing computer games since the early years of the gaming industry and was seen in the early days of
Tanarus as well as many others. Shareware games generally offer only a small part of the gameplay offered in the retail product, and may be distributed with gaming magazines, in retail stores or on developers' websites free of charge.
In the early 1990s, shareware distribution was common among fledging game companies such as
Apogee Software,
Epic Megagames and
id Software, and remains a popular distribution method among smaller game developers. However, shareware has largely fallen out of favor among established game companies in favour of traditional retail marketing, with notable exceptions such as
Big Fish Games and
PopCap Games continuing to use the model today.
Online delivery
With the increased popularity of the
Internet, online distribution of game content has become more common. Retail services such as
Direct2Drive and
Download.com allow users to purchase and download large games that would otherwise only be distributed on physical media, such as
DVDs, as well as providing cheap distribution of shareware and demonstration games. Other services, allow a subscription-based distribution model in which users pay a monthly to download and play as many games as they wish.
The
Steam system, developed by
Valve Corporation, provides an alternative to traditional online services. Instead of allowing the player to download a game and play it immediately, games are made available for "pre-load" in an encrypted form days or weeks before their actual release date. On the official release date, a relatively small component is made available to unlock the game. Steam also ensures that once bought, a game remains accessible to a customer for many years, while the traditional mediums of floppy disk and CD-ROM are susceptible to unrecoverable damage and misplacement.
Computer game genres
The
real time strategy genre, which accounts for more than a quarter of all PC games sold,
Conversely,
action games have found considerable popularity on video game consoles, making up nearly a third of all console video games sold in 2004, compared to just four percent on the computer. Sports games have also found greater support on game consoles compared to personal computers. or come packaged with a discrete graphics card with a supply of dedicated
Video RAM, connected to the motherboard through either an
AGP or
PCI-Express port. It is also possible to use multiple GPUs in a single computer, using technologies such as
NVidia's
Scalable Link Interface and
ATI's
CrossFire.
Sound cards are also available to provide improved audio in computer games. These cards provide improved
3D audio and provide audio enhancement that's generally not available with integrated alternatives, at the cost of marginally lower overall performance. The
Creative Labs SoundBlaster line was for many years the
de facto standard for sound cards, although its popularity dwindled as PC audio became a commodity on modern motherboards.
Physics processing units (PPUs), such as the
AGEIA PhysX card, are also available to accelerate physics simulations in modern computer games. PPUs allow the computer to process more complex interactions among objects than is achievable using only the CPU, potentially allowing players a much greater degree of control over the world in games designed to use the card.
Virtually all personal computers use a
keyboard and
mouse for user input. Other common gaming peripherals are a headset for faster communication in online games,
joysticks for
flight simulators,
steering wheels for driving games and
gamepads for console-style games.
Multiplayer
Local area network gaming
Multiplayer gaming was largely limited to
local area networks (LANs) before cost-effective
broadband Internet access became available, due to their typically higher
bandwidth and lower
latency than the dial-up services of the time. These advantages allowed more players to join any given computer game, but have persisted today because of the higher latency of most Internet connections and the costs associated with broadband Internet.
LAN gaming typically requires two or more personal computers, a
router and sufficient networking cables to connect every computer on the network. Additionally, each computer must have a
network card installed or integrated onto its motherboard in order to communicate with other computers on the network. Optionally, any LAN may include an external connection to the Internet.
Online games
Online multiplayer games have achieved popularity largely as a result of increasing
broadband adoption among consumers. Affordable high-bandwidth Internet connections allow large numbers of players to play together, and thus have found particular use in
massively multiplayer online RPGs,
Tanarus and persistent online games such as
World War II Online.
Although it's possible to participate in online computer games using dial-up
modems, broadband internet connections are generally considered necessary in order to reduce the latency between players (commonly known as "lag"). Such connections require a broadband-compatible modem connected to the personal computer through a
network interface card (generally integrated onto the computer's
motherboard), optionally separated by a
router. Online games require a virtual environment, generally called a "game server." These virtual servers inter-connect gamers, allowing real time, and often fast paced action. To meet this subsequent need,
Game Server Providers (GSP) have become increasingly more popular over the last half decade. While not required for all gamers, these servers provide a unique "home," fully customizable (such as additional modifications, settings, etc) - giving the end gamers the experience they desire. Today there are over 500,000 game servers hosted in North America alone.
Emulation
Emulation software, used to run software without the original hardware, are popular for their ability to play legacy video games without the consoles or operating system for which they were designed. Console emulators such as
NESticle and
MAME are relatively commonplace, although the complexity of modern consoles such as the
Xbox or
Playstation makes them far more difficult to emulate, even for the original manufacturers.
Most emulation software mimics a particular hardware architecture, often to an extremely high degree of accuracy. This is particularly the case with classic home computers such as the
Commodore 64, whose software often depends on highly sophisticated low-level programming tricks invented by game programmers and the
demoscene.
Controversy
Computer games have long been a source of controversy, particularly related to the violence that has become commonly associated with video gaming in general. The debate surrounds the influence of objectionable content on the social development of
minors, with organisations such as the
American Psychological Association concluding that video game violence increases children's aggression, a concern that prompted a further investigation by the
Center for Disease Control in September 2006. Industry groups have responded by noting the responsibility of parents in governing their children's activities, while attempts in the
United States to control the sale of objectionable games have generally been found unconstitutional. The problem of addiction and its health risks seems to have grown with the rise of
Massively Multiplayer Online Role Playing Games (MMORPGs).
Further Information
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