Mountain Lion Definition

Mountain Lion Definition Mountain Lion is another name for Mac OS X 10.8, the ninth version of Apple's desktop operating system. It was released on July 25, 2012, almost exactly one year after Mac OS X 10.7 Lion. Like Snow Leopard, Mountain Lion was not a major update to the Mac OS. Instead, it was primarily a performance update and included a small number of enhancements to further integrate Mac OS X with iOS, Apple's mobile operating system. Unlike previous versions of Mac OS X, Apple offi...
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Leopard Definition

Leopard Definition Leopard is another name for Mac OS X 10.5, which was released on October 26, 2007. It followed Mac OS X 10.4 Tiger and preceded the release of Mac OS X 10.6 Snow Leopard. Mac OS X Leopard was one of the most significant updates to Mac OS X, with over 300 new features. Some of the most notable additions include Time Machine (an automated backup solution), Spaces (a virtual desktop environment), and Quick Look (a feature that allows many file types to be viewed directly in t...
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Sierra Definition

Sierra Definition Sierra, also known as macOS 10.12, is the 13th version of OS X, released on September 20, 2016. It followed El Capitan (OS X 10.11) and is preceded by macOS High Sierra. Sierra was the first version of OS X that Apple officially labeled "macOS" instead of OS X. Like other incremental releases of Apple's desktop operating system, Sierra built on previous versions, incorporating the same user interface and adding several new features. Notably, Sierra was designed to work more...
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Ping Definition

Ping Definition A ping is a signal sent to a host that requests a response. It serves two primary purposes: 1) to check if the host is available and 2) to measure how long the response takes. A ping request can be performed using a ping command, which is a standard command in most command line interfaces. Several network utilities provide a ping feature, which allows you to ping a server by simply entering the IP address or domain name. Most ping programs send multiple pings and provide and ...
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Disk Drive Definition

Disk Drive Definition A disk drive is a device that reads and/or writes data to a disk. The most common type of disk drive is a hard drive (or "hard disk drive"), but several other types of disk drives exist as well. Some examples include removable storage devices, floppy drives, and optical drives, which read optical media, such as CDs and DVDs. While there are multiple types of disk drives, they all work in a similar fashion. Each drive operates by spinning a disk and reading data from it ...
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TRIM Definition

TRIM Definition TRIM is a feature supported by modern solid state drives (SSDs) that helps improve drive performance. The word "TRIM" is typically capitalized, though it is not an acronym. Instead, TRIM is a command that the operating system uses to allocate free space on an SSD. When you delete a file on an SSD, the data is often not deleted immediately, but instead is marked for deletion. This prevents certain areas of the flash memory from being written and erased too frequently, which ca...
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Copy Definition

Copy Definition Many software programs allow you to copy data, such as text in Microsoft Word or an image in Adobe Photoshop. To copy a piece of data, you need to first select it (or highlight it) and choose "Copy" from the Edit menu within the program. Most programs allow you to use the keyboard shortcut "Control-C" for Windows or "Command-C" for the Mac OS. When you copy a piece of data, it is moved to a buffer in the system's memory called the "Clipboard." This is a temporary storage area...
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Document Definition

Document Definition A computer document is a file created by a software application. While the term "document" originally referred specifically to word processor documents, it is now used to refer to all types of saved files. Therefore, documents may contain text, images, audio, video, and other types of data. A document is represented with both an icon and a filename. The icon provides a visual representation of the file type, while the filename provides a unique name for the file. Most doc...
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Latency Definition

Latency Definition In computing, "latency" describes some type of delay. It typically refers to delays in transmitting or processing data, which can be caused by a wide variety of reasons. Two examples of latency are network latency and disk latency, which are explained below. 1. Network latency Network latency describes a delay that takes place during communication over a network (including the Internet). For example, a slow router may cause a delay of a few milliseconds when one sys...
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Smartphone Definition

Smartphone Definition A smartphone is a mobile phone that includes advanced functionality beyond making phone calls and sending text messages. Most smartphones have the capability to display photos, play videos, check and send e-mail, and surf the Web. Modern smartphones, such as the iPhone and Android based phones can run third-party applications, which provides limitless functionality. While smartphones were initially used mostly by business users, they have become a common choice for co...
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