At the Build 2015 developers conference in San Francisco last week, Microsoft announced its plans to launch its Windows 10 operating system on PCs this summer and will be followed by the phone release later this year, The Verge reported

"There are devices and features that will come not on launch date, but following it," said Microsoft's Corporate Vice President, Operating Systems Group Joe Belfiore.

The software giant did not gave an exact date as to when Windows 10 will be released. What's been sure so far is that the Edge browser extension support will be included with it.

The Edge browser, initially known as Project Spartan was revealed last January but was shown in its entiriry last week at the developer conference. The new browser promises added new features, such as a built-in reading list and Cortana integration, and is faster than the Internet Explorer.

As for other features for the PC build, such as a new messaging app with Skype integration to match Apple's iMesaage, it may be released by Microsoft in the months to follow in the form of updates.

Aside from it focuse on the Windows 10 PC launch, the company does however give a hint that a new Lumia hardware will come out with a build for mobile phones.

It can be recalled that Microsoft released Windows 8.1 for PCs earlier than its phone build.

"We're on track for this summer," Belfiore said during the conference regarding the launch of Windows 10 for PCs. "But you should definitely have this notion in mind of Windows as a service."

According to GSMArena , Microsoft may release two high-end Lumia phones with pre-installed Windows 10. The premium model, with the codename "Cityman," is a 5.7-inch device with a octa-core processor, 32GB of storage space, 3GB of memory, and has a 20-megapixel rear and 5-megapixel front cameras.

Meanwhile, the "Talkman" has a lower 5.2-inch display. It has the same the same storage space, memory and cameras found in the Cityman. Although it only has a hexa-core processor.

The rough specs of the rumored devices seemed powerful enough to run Windows 10 for phones and become a mobile PC when it gets connected to a LCD monitor. Microsoft did announce this feature, called Continuum for Phones, at Build 2015.

This feature for upcoming Lumia devices gives Windows users additional options to switch between mobile devices and PCs without the need to install apps that are compatible to the desktop software they use.

Aside from Lumia phones, Windows 10 will also make its way to other Microsoft devices such as its Surface tablets and the Xbox gaming console.