"instantaneous access" is a correct and usable phrase in written English.
It is typically used when referring to the immediate availability of a desired item or service. For example, "The new streaming service offers instantaneous access to thousands of movies and shows."
The first gives instantaneous access and is maintained for several months.
The book has been written for a readership acclimatised to instantaneous access to whatever music they want to listen to at any given moment.
The Island Explorer's most manifest improvement over the area's resorts is its instantaneous access to the oft-overlooked Maldivian cultural heritage and, perhaps more importantly, water-sport activities.
This group is at ease with using always on internet and mobile devices, both for instantaneous access to information and for self-expression and social interaction.
The recent shift of drama in the direction of nonfiction is rooted in the shifting status of journalism, as well as in instantaneous access (thanks to the Internet) to firsthand accounts, documents, and analyses of contemporary and historical events.
In a technology-crazed nation where many people were glued to cellphones and accustomed to the Internet's nearly instantaneous access to information, being cut off has proved disorienting and frightening.
In many ways, transparent – and instantaneous - access to information is the default state in which we now live.
What that may mean to students and faculty members is almost instantaneous Internet access.
The Internet already offers instantaneous public access to vast resources of noncommercial information stored in computers around the world.
In this world of instantaneous commercial access, banning the sale of certain products during certain hours seems quaint, if potentially annoying.
Progress has been made, but at a more iterative and deliberate pace than perhaps needed and desired by a public becoming accustomed to instantaneous information access.
