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|Joe Kissell||TidBITS Publishing, Inc.||ePub|
The topics covered in the previous two chapters, Cloud Storage and Cloud Syncing, are mostly passive from the users point of view. Sure, you may drag a file into a folder, update a contact, or click a Share button, but for the most part, storage, sharing, and syncing are just plumbingstuff that goes on behind the scenes without requiring much interaction. In this chapter, we turn to cloud-based apps with more overt user interaction, from productivity apps to entertainment.
To summarize the next few pages: almost any computing task you may need to perform, you can probably do in a cloud-based app.
I should point out that when I say cloud app or cloud-based app I dont merely mean apps that run in your Web browser, although there are many such appsand I mention quite a few of them in this chapter. For our purposes, a cloud app is one for which the bulk of the heavy liftingthe actual computationhappens in the Cloud. Youll need some way to interact with them, and Web browsers are often the logical choice. But you might equally well use a client app on your computer, mobile device, or set-top box. The input/output method isnt as crucial to cloud apps as much as where the app part happens.See All Chapters
|Victoria Charles||Parkstone International||ePub|
|James Avery||O'Reilly Media|
Developing in .NET 3.0
Version 3.0 of the .NET Framework (formerly known by the much more interesting handle “WinFx”) brings a couple of dramatic improvements to the .NET world. The fundamental set of Framework Class Libraries in .NET 2.0 isn’t altered by .NET 3.0; however, there are several critical additions to the Framework’s functionality.
The Windows Presentation Foundation (WPF, formerly “Avalon”) represents a sea change in Windows user interfaces. WPF brings exciting graphics enhancements such as 3D controls, transparent windows, smoothly embedded multimedia, and a host of other benefits to the .NET Framework. WPF also makes use of developers’ high-end graphics systems by offloading much of the display processing to the graphics cards’ specialized processors. (Of course, this means you’ll need sophisticated hardware to take full advantage of WPF’s best features. Generic and low-end display adapters need not apply.)
WPF also changes how user interfaces are built. eXtended Application Markup Language (XAML, pronounced “Zamel”) is an XML-based language used to define graphics, user interface layouts, control placement and functionality, and a host of other UI features. Graphics designers will use tools to create images and UIs for an application and save that project information in XAML format. Developers will then take thatSee All Chapters
|Kurt J. Engemann||Rothstein Publishing||ePub|
Epicenter – The point of origin of an earthquake is known as the focus. Shock waves spread out from the focus and the point on the surface directly above the focus is known as the epicenter.
Fault – A fracture plane in the surface of the earth.
Ground Movement – Ground vibration or other aspects of motion that occurs during an earthquake.
Uplift and Subsidence – The uplifting or sinking of land during an earthquake.
Liquefaction – The process by which certain soils behave as a liquid during an earthquake. Water-saturated sands and compact soils (landfills) lose their load-bearing capacity.
Modified Mercalli Scale – The intensity of an earthquake indicates the effects on people and structures. Intensity is determined by reports of observers and not by instruments. The Modified Mercalli Scale measures intensity on a scale of I (least intense) to XII (most intense).See All Chapters
|Kevin Kline||O'Reilly Media||ePub|
To begin to use SQL, you must understand how statements are written. SQL syntax falls into four main categories. Each category is introduced in the following list and then explained in further detail in the sections that follow:
Describe a user- or system-supplied name for database objects, such as a database, a table, a constraint on a table, the columns in a table, a view, etc.
Describe a user- or system-supplied string or value that is not otherwise an identifier or a keyword. Literals may be strings like "hello", numbers like 1234, dates like "Jan 01, 2002", or Boolean values like TRUE.
Are symbols specifying an action performed on one or more expressions, most often in DELETE , INSERT, SELECT, or UPDATE statements. Operators are also used frequently in the creation of database objects.
Have special meaning to the database SQL parser, such as SELECT, GRANT, DELETE, or CREATE. Reserved words are words that cannot be used as identifiers within the database platform, usually commands or SQL statements. Keywords are words that may become reserved some time in the future. You can circumvent the restriction on using reserved words and keywords as identifiers through quoted identifiers, described in a moment. This is not recommended! Elsewhere in the book (besides here), we use the term keyword to describe both concepts.See All Chapters
Business & Economics