1. Digital cinemaThe technology used now in theater is digital cinema. In addition to the equipment already present in a cinema based on a DCI compliant digital cinema screen a digital projector and a computer known as a "server" are needed. For a typical movie, this file will contain between 90 and 300 GB of data (about two to six times the information of a Blu-ray disc) and can be accessed as a physical delivery on a conventional computer's hard drive or via satellite or fiber optic broadband. Content playback is managed by the server using the "list". As the name suggests, it is a list of all the contents to be played within the show, the playlist will be created by one of the theater staff members, using proprietary software that runs on the server. In addition to listing the content to play, it also includes indicators that allow playback automation to control the projector, sound system, lighting, curtains and audience card screen masking (if available), etc. A playlist can be started manually by clicking the "Play" points on the control panel server or automatically.2. DTS Sound SystemThe sound system used in the theater is DTS, a series of multi-channel audio technologies owned by DTS, Inc (formerly known as Digital Theater Systems, Inc), a US company specializing in digital surround sound formats used for commercial/theatrical purposes and of consumption. grade applications.Difficulties encountered in business.1. Growth of television broadcastersThe difficulties faced by the business are that nowadays the number of people who go to the cinema to watch a film is decreasing. Due to the growth of television broadcasters people are no longer interested in visiting the theater. Because women spend their time watching teledramas and b...... half a newspaper ...... enters the whole world. Much more, but the multiplex format was adopted against the backdrop of massive social change in an era of economic liberalization. As the northern areas are developing, many economic magnets are ready to invest in those areas. So, if a multiplex cinema is built, many companies will open businesses there such as supermarkets, food cities, KFC and other private trading companies. This can make a good profit by renting the seats to these companies.3. Online Booking Now people are not interested in waiting in long queues to get a ticket for a movie because people are now busy with work. So, if the online booking system is available to people, they can easily log in to the theater's website and find out the films currently playing as well as those coming out in the future. They can book the movie of their choice and reserve the suitable seats of their choice.