Push refers to a system in which data is “pushed” to a user’s device rather than “pulled” by the user. In other words, the data transfer is initiated by the server rather than the client.
Push technology, which is also called “server push,” can be used to send news data, stock updates, and other information from the Internet to a user’s computer. It is also used to send text messages via SMS to people’s cell phones. Push e-mail allows users to receive e-mail messages without having to check their e-mail manually. This means new messages appear on the client’s device as soon as they are received by the server. However, in order to receive pushed messages, both the mail server and the user’s e-mail client must support push technology.
While most information is still “pulled” from the Internet, more kinds of data can now be pushed to users’ systems. With push technology, people no longer need to constantly check news sites, e-mail, or other data sources to see if they have been updated. The result is a more efficient means of receiving information. If only we could go back in time and tell the playground bully, “Don’t push me, push your e-mail.” That would show him.
When a variable has no value, it considered to be null. Having a null value is different than having a value of 0, since 0 is an actual value. However, when used in a boolean test, both null and zero result in a FALSE value. Programmers often use boolean tests to determine whether a variable has been given a value or not.
Lossy file compression results in lost data and quality from the original version. Lossy compression is typically associated with image files, such as JPEGs, but can also be used for audio files, like MP3s or AAC files. The “lossyness” of an image file may show up as jagged edges or pixelated areas. In audio files, the lossyness may produce a watery sound or reduce the dynamic range of the audio.
Because lossy compression removes data from the original file, the resulting file often takes up much less disk space than the original. For example, a JPEG image may reduce an image’s file size by more than 80%, with little noticeable effect. Similarly, a compressed MP3 file may be one tenth the size of the original audio file and may sound almost identical.
The keyword here is “almost.” JPEG and MP3 compression both remove data from the original file, which may be noticeable upon close examination. Both of these compression algorithms allow for various “quality settings,” which determine how compressed the file will be. The quality setting involves a trade-off between quality and file size. A file that uses greater compression will take up less space, but may not look or sound as good as a less compressed file. Some image and audio formats allow lossless compression, which does not reduce the file’s quality at all.
Even if office 365 is new to you are probably familiar with the office desktop applications. Including Word, Power Point, Excel OneNote and Access. Office 365 includes services for email, communication, insights and it works with the office programs you use every day. If you already have office 2010 or office 2007 on your computer it will work with Office 365.
Depending on the plan your organization chose, you may also have a subscription to the latest version of Office. To install it, go to the get started page in office 365 and click pc & mac. You’ll see all the programs you <!–more–> can install. Outlook and Lync are included here for people who use computers running windows. If you have office 2010 or office 2007 the new version of office works alongside those versions see you don’t have to remove the old version while you try the new one.
Installing the latest version of office gives you the most recent updates and features including saving your documents directly to your team site or SkyDrive pro. Share documents with other people or access them from your phone, tablet or other mobile device including Windows phone, iPhone, iPad, and Android devices. Sometimes you’ll be using a computer that doesn’t have office. The latest version of office includes Office on Demand which streams of its programs to your computer without to download and no matter what computer you are using office Web Apps work with Office 365. Office Web Apps are the online companions to Word, Excel, OneNote & Power Point. You can use the Web Apps to open documents on computer and mobile devices that are connected to the web. Office Web Apps look and behave similar to the office desktop applications you use to but their online. To make a new document, go to SkyDrive Pro and click new document or you could open an office desktop application on your computer. With so many choices you can use Office and Office 365 together in the way that works best for you.
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