Tech enthusiasts worldwide are eagerly waiting for the much anticipated big Apple Inc. event that takes place every year on this date - it will also begin today.

Apple has sent out invites to a select group of people to attend the keynote live event, which will be held in San Francisco's Bill Graham Auditorium today. However, people who have not received an invite for the event can still keep themselves updated regarding the product launched as well as the various important announcements that the Cupertino-based tech giant will make at the event. At they need to do is tune into the live stream broadcast of the big even on Apple's official website.

According to Christian Today, Apple Inc. now allows more people using its devices and services across the globe to have an online access to the upcoming keynote event. Apple users can watch the keynote event live using the devices and browsers mentioned below.

•  The Safari browser installed on an iPhone, iPad, or iPod Touch with iOS7 operating system or later;
•  Mac with Safari 6.05 or later powered with the newest version of OS X;
•  A second-generation or third-generation Apple TV that runs using version 6.2 or later;
•  Any device with the new Microsoft Edge browser on any brand of PC powered by Windows 10.

If the above mentioned requirements are not available, enthusiasts can also follow the event on many online media sites that have already announced that they would be hosting a live blog update of the event immediately when it starts.

Some of the devices that are expected to be dealt with in the upcoming event include the launch of the iPhone 6s and iPhone 6s Plus, which will reportedly be available in more color options than the flagship iPhone 6 and iPhone 6 Plus devices, which were released last year. Apple will be launching the iPhone 6S and 6S Plus in place of the iPhone 7.

In addition, the iPad product line is also expected to be highlighted during the keynote event. Speculations are rife that the large-screened slate called iPad Pro will be launched this week, in addition to the upgraded version of the iPad mini.

It is also expected that Apple will unveil the iOS 9 and WatchOS 2 during this week's Apple event. These operating systems aim to introduce new features to the existing Apple products.

The Apple keynote event will begin at exactly 10 a.m. PDT on Sept. 9.