When the first iPad was brandished by the late Steve Jobs, the quarters that followed signalled the decline of PCs. Now on its fifth iteration plus the Retina iPad Mini, the devices' release date could spell the end of traditional computing.

What could finally drive the nail, according to a new research note from Deutsche Bank Equity Research, is the entry of 64-bit computing architecture to the whole line of iOS devices.

Apple has introduced its own take on the technology via the iPhone 5S in September this year. The iOS 7-powered handset relies on an A7 CPU that is governed by the more advanced set of instructions, which is a first for the global mobile device industry.

The tech giant described its move last month as forward-looking, prompting analysts to conclude that the new standard will be on board for the 2013 iPad refreshes, which according to numerous reports will not only present revised outside appearances but also monster power under the hood.

If indeed the two upcoming iPads will get such remarkable steroid shots then there is major reason for the PC industry to quake on its boots, the Deutsche Bank report said.

"We expect AAPL's (Apple's) iPad refresh to include 64 bit architecture, which should enable a greater array of enterprise App development and facilitate greater enterprise penetration over time," Deutsche Bank's Chris Whitmore was reported by CNET as saying.

In his projections, Mr Whitmore said that any of the two iPads will become more attractive for the corporate users, which is the last lucrative market left for manufacturers of desktop and laptop computers.

"We ... expect growing desktop virtualisation and iPad deployments in the enterprise to pressure corporate PC sales through 2014-15," the analyst said.

As a result, overall PC shipments for the current year will see an alarming decline of negative 10 per cent and another negative eight per cent by the end of 2014, the Deutsche Bank report predicted.

And PC industry players can put the blame directly on Apple as the tech giant's 64-bit iOS 7 tablets are poised to dry up the industry's last remaining revenue generator, said Mr Whitmore.

Looking on the likely specs of the 9.7-inch iPad 5 and the 7.9-inch iPad Mini 2, the likelihood of a final PC annihilation is quite a scare.

Apart from luring consumers with their sleeker looks, said to sport thinner bezels that surround the screen and lesser footprint on release date, the two iPads will likely boasts of high-resolution Retina display panel, which should lead to identical screen resolution of 2048 x 1536 with denser ppi.

Yet what really separates the iPads from its Android and Windows rivals is Apple's vaunted ecosystem that contains a collection of some 300,000 apps that are readily tablet-optimised, experts said.

Apple is rumoured to introduce the iPad 5 and iPad Mini 2 on Oct 15 though the actual release date may not happen until mid-November as the tech giant reportedly grapples with production issues.