Default Definition Default is an adjective that describes a standard setting or configuration. While it is not specific to computers, it is commonly used in IT terminology. In computing, “default” may describe several things, including hardware, software, and network configurations. A default hardware configuration (or “default config”) is a prebuilt system with standard specifications. This includes standard components such as the CPU, RAM, storage device, and video card. Retail ..
Category : Technical
OLAP Definition Stands for “Online Analytical Processing.” OLAP allows users to analyze database information from multiple database systems at one time. While relational databases are considered to be two-dimensional, OLAP data is multidimensional, meaning the information can be compared in many different ways. For example, a company might compare their computer sales in June with ..
Null Definition 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 ..
Dot Matrix Definition A dot matrix is a 2D matrix of dots that can represent images, symbols, or characters. They are used for electronic displays, such as computer monitors and LED screens, as well as printed output. In a dot matrix display, the images are estimated using a discrete set of dots instead of lines and shapes. Therefore, the ..
DPI Definition Stands for “Dots Per Inch.” DPI is used to measure the resolution of an image both on screen and in print. As the name suggests, the DPI measures how many dots fit into a linear inch. Therefore, the higher the DPI, the more detail can be shown in an image. It should be noted that ..
Resolution Definition Resolution measures the number of pixels in a digital image or display. It is defined as width by height, or W x H, where W is the number of horizontal pixels and H is the number of vertical pixels. For example, the resolution of an HDTV is 1920 x 1080. Image Resolution A digital photo that is 3,088 pixels ..
Macintosh Definition Macintosh is a line of desktop and laptop computers developed by Apple. Each Macintosh computer, or Mac, runs a version of the Mac OS, Apple’s desktop operating system. Since 2001, all Macs have run Mac OS X, a redesigned version of the original Mac OS that was built from the NeXTSTEP operating system. The original Macintosh, released in 1984, was ..
Logic Gate Definition Logic gates perform basic logical functions and are the fundamental building blocks of digital integrated circuits. Most logic gates take an input of two binary values, and output a single value of a 1 or 0. Some circuits may have only a few logic gates, while others, such as microprocessors, may have millions of them. There ..
LTE Definition Stands for “Long Term Evolution.” LTE is a 4G telecommunications standard used for transferring data over cellular networks. It supports data transfer rates of up to 100 Mbps downstream and 50 Mbps upstream. While the terms “4G” and “LTE” are often used synonymously, LTE is actually a subset of 4G technologies. Other 4G standards include Mobile WiMAX (IEEE 802.16e) and WirelessMAN-Advanced ..
Input Definition Whenever you enter data into your computer, it is referred to as input. This can be text typed in a word processing document, keywords entered in a search engine’s search box, or data entered into a spreadsheet. Input can be something as simple as moving the mouse or clicking the mouse button or it ..
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