With its Cloud Apps, Google tells a nice, simple story: All you need is a browser. Life is simple, we take care of everything, no more fighting with fat, expensive desktop bloatware.
You can access your data and our apps Anywhere, Anytime…if you have an Internet connection. If you don’t, as we’ll see in a moment, things become more complicated. More like yesterday.
Let’s start with a simple Web app. How does it work?
Somewhere, a computer runs a Web server. In turn, the Web server runs an application whose job is to pull the strings of the browser marionette hiding inside my computer at the other end of a Net connection. The app tells my browser to display ‘Monday Note’ at these coordinates inside such-and-such a window, using this font, that size, and this color. Or the Web app sends a file and tells the browser where and how to play it, and so on.
But what happens if I lose the Net connection? The server no longer pulls the string, the marionette collapses, my Web application is dead.
To achieve its strategic goal of displacing Microsoft Office, Google knew it had to provide an off-line version of Google Apps. Off-line capability is implemented by dropping a replica of the Cloud—a Web server, the application code running on that server, and a local cache of my data—into my computer. My work will be uploaded to the Cloud when the Net connection is restored. With today’s software technology, with abundant storage and computing power on desktops and laptops, Google’s goal isn’t unreachable.
But…the Cloud can be replicated inside my laptop?
It’s not as fantastic as it sounds. While the Cloud evokes images of Google server farms and Big Iron, even the flimsiest of netbooks now provide ample RAM space (at least 1Gbyte, often 2), plenty of disk space (160 Gb or more), and an Intel processor running at 1 GHz or faster. Recreating the server, storage, and applications is well within their power.
Furthermore, your PC/laptop/netbook already contains a Web server. Every Mac carries a copy of the Apache Web server (“the most popular HTTP server software in use” says the Wikipedia article), as so do most Linux “distros” on netbooks and DVDs. Windows provides a Web server called IIS, Internet Information Services, the “second most popular web server in terms of overall websites…” (Wikipedia). If you want Apache on Windows, it’s free and easy, go here. The Windows Installer package (née MSI) weighs in at 6Mbytes, that’s all.