A video game  is an  that involves human interaction with a to generate visual feedback on a. The word video in video game traditionally referred to  (CRT) display device,^[1] but it now implies any type of that can produce two or three dimensional images. The electronic systems used to play video games are known as platforms; examples of these are personal computers and . These platforms range from large  to small . Specialized video games such , while previously common, have gradually declined in use. Video games have gone on to become an art form and industry.

The  used to manipulate video games is called a , and varies across platforms. For example, a controller might consist of only a button and a , while another may feature a dozen buttons and one or more joysticks. Early personal often needed a  or more commonly, required the user to buy a separate joystick with at least one button. Many modern computer games allow or require the player to use a keyboard and a simultaneously. A few of the most common game controllers are  mouses, keyboards, and joysticks.

Video games typically use additional means of providing interactivity and information to the player. Audio is almost universal,   devices, such as . Other feedback may come via h such as vibration with vibration sometimes used to simulate force feedback.

In the early days of cartridge consoles, they were sometimes called TV games.

The 7400 series contains hundreds of devices that provide everything from basic s, and counters, to special purpose bus transceivers and (ALU). Specific functions are described in a 

Today, CMOS versions of the 7400 series are used in various applications in electronics and for in computers and industrial electronics. The original  devices in (DIP/DIL), which were the mainstay of the industry for many decades, are very useful for rapidprototyping and education and so remain available from most manufacturers. The fastest types and very versions are typically  only, however.

The first part number in the series, the 7400, designates a device containing four two-inputs. Each gate uses two pins for input and one pin for its output, and the remaining two contacts supply power (+5 V) and connect the ground. This part was made in various including flat pack, plastic or ceramic dual in-line packages with 14 pins, and in surface mount packages as well. Additional numbers and letters in a full part number identify the package and other variations.

While designed as a family of digital logic, it was not unusual to see TTL chips in analog circuits like . Like the , the newer  versions of the 7400 series are also usable as analog amplifiers using negative feedback (similar to  with only an inverting input).

The former manufactured the K155ЛA3 which was pin-compatible with the 7400 part available in the United States, except for using a metric spacing of 2.5mm between pins instead of the 1/10"-based (2.54mm) spacing used in the west

                                                  what is video games

The "video" in "video game" traditionally refers to a raster display device. However, with the popular use of the term "video game", it now implies any type of display device. The electronic systems used to play video games are known as platforms; examples of these are personal computers and video game consoles. These platforms are broad in range, from large computers such as mainframes, to handheld devices such as cell phone and PDAs.

The user interface to manipulate video games is generally called a gamecontroller, which varies across platforms. For instance, a dedicated console controller might consist of only a button and a joystick, or feature a dozen buttons and one or more joysticks. Early computer based games historically relied on the availability of a keyboard for gameplay, or more commonly, required the user to purchase a separate joystick with at least one button to play. Many modern computer games allow the player to use a keyboard and mouse simultaneously.

Beyond the common element of visual feedback, video games have utilized other systems to provide interaction and information to the player. Chief examples of these are sound reproduction devices (speakers) and an array of haptic peripherals. One variant even utilized heat and mild electric shocks when th