Virtual Reality Definition

Virtual Reality Definition While the word "virtual" is typically overused in the computer world, it is aptly placed in the phrase "virtual reality." According to the American Heritage Dictionary, virtual means "existing or resulting in essence or effect though not in actual fact, form, or name." It can also mean "created, simulated, or carried on by means of a computer or computer network." Therefore, virtual reality is best described as an illusion of reality created by a computer system. A...
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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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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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Partition Definition

Partition Definition A partition is a section of a storage device, such as a hard disk drive or solid state drive. It is treated by the operating system as a separate logical volume, which makes it function similar to a separate physical device. A storage device may be formatted with one or more partitions. Some operating systems, such as Windows and Linux require multiple partitions, while others like macOS may only require one. Windows stores system files in a "System Partition" and user d...
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Developer Definition

Developer Definition In the IT world, a developer is a person who creates something with a computer. The term encompasses many types of content, such as software, websites, and written material. Therefore, developers are often referred to by more specific names. Some common examples include 1) software developers, 2) web developers, and 3) content developers. 1. A software developer is someone who creates software programs. Software developers often have more specific titles, such as pro...
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NFS Definition

NFS Definition Stands for "Network File System." NFS is a protocol used to access files over a network. It was developed by Sun Microsystems and introduced in 1989. The protocol is platform-independent, meaning it works across multiple operating systems and network configurations. While "file system" makes up two-thirds of the NFS acronym, the Network File System is not an actual file system like NTFS or APFS. Instead, it is a protocol that provides standard commands for accessing files ...
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Character Definition

Character Definition A character is any letter, number, space, punctuation mark, or symbol that can be typed on a computer. The word "computer," for example, consists of eight characters. The phrase "Hi there." takes up nine characters. Each character requires one byte of space, so "computer" takes up 8 bytes. The list of characters that can be typed is defined by the ASCII and extended ASCII set. Some of the symbols available are pretty strange and may even make you say, "That's quite a charac...
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Syntax Definition

Syntax Definition Every spoken language has a general set of rules for how words and sentences should be structured. These rules are collectively known as the language syntax. In computer programming, syntax serves the same purpose, defining how declarations, functions, commands, and other statements should be arranged. Many computer programming languages share similar syntax rules, while others have a unique syntax design. For example, C and Java use a similar syntax, while Perl has many ch...
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MIDI Definition

MIDI Definition Stands for "Musical Instrument Digital Interface." MIDI is a connectivity standard for transferring digital instrument data. It is primarily used by computers, synthesizers, and electronic keyboards. However, MIDI is supported by several other instruments, such as electronic drums, beat boxes, and even digital stringed instruments like guitars and violins. MIDI data includes several types of information. For example, pressing a single key on a synthesizer transmits the note p...
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Read-only Definition

Read-only Definition A read-only file or storage device contains data that cannot be modified or deleted. While data can be accessed or "read" from a read-only file or device, new data cannot be added or "written" to the device. Most operating systems, such as Windows and OS X allow you to mark individual files as read-only. In Windows, you can right-click a file and select Properties to view more information about the file. You can click the Read-only checkbox (located in the General ta...
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