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Cocoa is the native API (application programming interface) of the macOS X operating system. Apps written using the Cocoa API have the distinctive look and feel of Apple software. There are similarities in the appearance of the windows and menus, and how the application behaves. Cocoa apps are written using Apple’s official IDE (integrated development environment), called Xcode. Cocoa has three major sets of Objective-C libraries, or frameworks, that comprise its main features and functions....

The connection time is the amount of time you spend while hooked up to the Internet, online service, or a major commercial provider. Some providers, such as free Internet providers, may only allow a user a limited connect time. The picture is an example of the connection time of a computer logged in to chat. As seen in the picture, the computer was connected for four days, 18 hours, and 42 minutes....

The F2 key is a function key found at the top of almost all computer keyboards. The key is often used in Microsoft Windows to rename a highlighted file or icon. As mentioned below, F2 also has many uses depending on the computer and program. How to use the F2 key Open the program that uses the key and press F2. If the F2 key also has an icon on the key, it indicates the key has a secondary function....

iMesh was a file sharing software that allowed users to download both paid and free music for their iPod devices. As of June 9, 2016, the iMesh website and service is shut down, and the software is no longer supported. WOT currently rates iMesh with a poor rating based on user reviews. Several reports of malware and spyware affiliated with this product. Keep these warnings in mind if you decide to install this program on your computer....

A mesh topology is a network setup where each computer and network device is interconnected with one another. This topology setup allows for most transmissions to be distributed even if one of the connections goes down. It is a topology commonly used for wireless networks. Below is a visual example of a simple computer setup on a network using a mesh topology. Different types of mesh topology There are two forms of this topology: full mesh and a partially-connected mesh....

In games, like Quake, rocket jumping is a technique where a player fires a rocket at the ground, wall, or another surface. At the same time, they jump to travel at a greater distance. In the game, this is a skill play that propels the player onto a higher, more advantageous position. For instance, it may allow him or her to escape another player or establish an exclusive vantage point for sniping....

First released in 2002, Scalix is a suite of groupware and e-mail software for Linux servers. It is compatible with many popular enterprise-level e-mail clients including Microsoft Outlook and Novell Evolution. It provides benefits for any organization that uses a combination of Microsoft Windows and Linux client computers. Scalix features Complete integration with Microsoft Exchange and Microsoft Active Directory. E-mail service, facilitating enterprise-level e-mail needs for a large organization. Calendar service, allowing synchronized calendar access for all group members....

Short for Secure File Transfer Protocol or SSH File Transfer Protocol, SFTP is a version of FTP that encrypts data transfers, helping keep your passwords secure and your session private. Because SFTP is a different protocol than FTP, for you to establish an SFTP connection, you must be connecting to a computer that supports SFTP. Using SFTP to connect to an FTP server will not work. Computer acronyms, FTP, Network terms, Protocol...

The first computer to electronically store and execute a program was the SSEM (Small-Scale Experimental Machine), also known as the Manchester Baby. It was designed by Frederic Williams, and built by his protégée, Tom Kilburn, with the assistance of Geoff Tootill, at the University of Manchester, England. Kilburn wrote the first program to be executed on the SSEM. It calculated the highest proper factor of an integer using repeated subtraction rather than division....

Used as a unit of measurement, TTFB is an acronym for time to first byte. TTFB is the time it takes for a single byte of data to travel from server to client when a web page is requested. The lower TTFB a page has, the less time it takes for the page to be accessed. This metric is useful to developers when optimizing web pages and search engines when ranking them....

U may refer to any of the following: U is chat slang often used in chat as an abbreviated form of the word “you.” For example, ICU is an abbreviation for “I see you.” In programs dealing with text, like a word processor, an icon of a “U” may be shown to represent the underline. U is a keyboard key used with the keyboard shortcuts Alt+U, Command+U, and Ctrl+U. With regular expressions, “U” is a regular expression flag to do an ungreedy match....

Windows 10 has several built-in features that reduce power consumption. There’s a system-wide Battery Saver, a Power troubleshooter, USB selective suspend, and more. These features help to extend the battery life of your Windows PC. In this explainer, we’ll walk you through the intricacies behind “USB selective suspend,” what it does on your Windows computer, and how to disable the feature if it ever poses a problem. What is USB Selective Suspend?...

Difficulty Moderate Steps 13 Time Required 30 - 35 minutes Sections 2 Motherboard 11 steps Front Speaker 2 steps Flags 0 BackXiaomi Redmi 2 Full Screen Options History Save to Favorites Download PDF Edit Translate Get Shareable Link Embed This Guide Notify Me of Changes Stop Notifications Introduction What you need Step 1 Motherboard Use the flat end of the spudger to remove the back panel from the mid-frame and front body....

In computer programming, control flow or flow of control is the order function calls, instructions, and statements are executed or evaluated when a program is running. Many programming languages have what are called control flow statements, which determine what section of code is run in a program at any time. An example of a control flow statement is an if/else statement, shown in the following JavaScript example. var x = 1;if (x === 1) { window....

Initially released in 2011, a Google Chromebook is any laptop or netbook computer running the Google Chrome OS. Chromebooks are different from other laptops because they require the Internet (although their offline capabilities have improved) and run almost everything from the cloud. Their functionalities mainly include using the Google Chrome browser and related extensions, supported Android applications, and a file browsing system. Chromebooks are designed for use with Internet and cloud-related software, featuring more basic hardware, and are generally not as powerful as a laptop with Windows or macOS....

H may refer to any of the following: The letter “h” is chat slang for “how.” For example, “h2” in chat is short for “how to.” H is a keyboard key used with the keyboard shortcuts Alt+H, Command+H, and Ctrl+H. With Microsoft Excel and other spreadsheet programs, “H” is the eighth column of a spreadsheet. To reference the first cell in the column, you’d use “H1.” In Adobe Photoshop, H is a shortcut to select the hand tool....

INTA may refer to any of the following: Short for INTerrupt Acknowledge, INTA is a signal used to identify that a CPU has an interrupt made by the interrupt controller. Short for INTernational Trademark Association, INTA is an international organization actively pursuing public policy matters. Computer acronyms, Hardware terms, INTR (Interrupt)

Markdown is a markup language that formats plain text. The formatted text is then converted into another language, such as HTML. Markdown was developed by John Gruber and Aaron Swartz, and first released in 2004. Today, every major blogging platform supports Markdown, and many platforms offer modified versions of Markdown. For instance, GitHub supports GFM (GitHub Flavored Markdown), which more clearly defines the use of characters and white space, and includes special extensions for including GitHub features....

Short for random-access method of accounting and control, the IBM 305 RAMAC is an early computer that used the IBM 350 moving head hard drive, similar to the ones we still use today. The picture shows two IBM 305 computers at U.S. Army Red River Foreground. In 1960, the IBM 305 RAMAC scored the Winter Olympic Games in California, marking the beginning of four decades of IBM technical support for the Olympic Games....

If you are running Windows XP Home Edition, this is the only option you have for sharing files. Windows XP Professional users can share files and folders with much more security. To share a folder using Simple File Sharing, right-click on a folder and choose Sharing and Security. If it’s the first time you are setting up sharing on your computer, you will be asked to either use the wizard or just Enable File Sharing....