Τεχνικός Υπολογιστών CompTIA A+

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Wake on LAN A BIOS and adapter feature that allows a network administrator to remotely control power to a workstation and allows a computer to come out of the sleep mode.

Wake on Ring A BIOS and adapter feature that allows a computer to come out of sleep mode when the telephone rings, so the computer can accept faxes, emails, and so on when the user is absent.

wallpaper In an operating system, a background picture, pattern, or color located behind desktop icons.

WAN (wide area network) Two or more LANs communicating, often across large distances. The most famous WAN is the Internet.

WAP (wireless access point) See wireless access point.

warm boot Restarting a computer by pressing , using the restart function, or by clicking the Windows Restart option. Puts less strain on a computer than a cold boot.

waterproofing A mobile device accessory that protects against liquid damage. Waterproofing options provides different levels of protection.

watt The electrical measure in which computer power supplies are rated.

wattage rating A measure used to determine whether a power supply is powerful enough to power the devices within a computer.

WDS (Windows Deployment Services) Uses the corporate network to deploy Windows-based operating systems, drivers, updates, and applications using a network-based installation.

wear leveling The process of writing and erasing data in different memory blocks of SSDs (solid-state drives) to prolong the life of a drive.

wearable devices Mobile devices worn on one’s person, such as smart watches, fitness monitors, headsets, and even glasses.

web credentials Logon information for specific websites stored by Skype, Edge, and other Microsoft apps in Windows 8 and 10.

web server A computer configured to provide web-based content that is accessed through a web browser.

webcam Short for web camera, a small camera used for communicating via video across the Internet.

weight limitation Do not lift anything that weighs over 40 pounds by yourself.

WEP (Wired Equivalent Privacy) A type of encryption that is sometimes used in wireless networks.

while loop In scripting, a type of loop that begins with the keyword while along with a test condition. If the condition is true, the loop begins, and the block of statements in the loop repeats until the condition is no longer true.

whitelist A method of controlling access by permitting devices, access, services, people, apps, protocols, or websites through to a site or network device.

WiBro (mobile Wireless Broadband) Also known as mobile WiMAX, allows wireless connectivity for moving devices, such as those on a bus or train.

WiFi (Wireless Fidelity) A type of network in which no wires are needed to connect to the network.

WiFi analyzer A tool used to identify what wireless networks are in the area, determine what frequencies (channels) are used, and find a less crowded channel for any wireless installations, hotspot, or tethering that may be needed in a particular area. Also known as a wireless locator.

WiFi antenna Attaches to a WLAN card to receive or transmit wireless signals.

WiFi calling A common mobile device app used to make phone calls using a WiFi connection rather than a cell phone network.

wildcard A special character used at the command prompt when typing commands. The ? character is used to designate “any” for a single character place, whereas the * character denotes any characters from that place forward.

WiMAX A wireless technology that could be used to connect the Internet with a large-scale coverage area and access speeds up to 1 Gb/s. Also used for connectivity as part of a cellular network.

window A specific area of the screen that has contains information.

Windows Assessment and Deployment Kit (ADK) A set of Microsoft tools used to deploy system images in the corporate environment.

Windows Automated Installation Kit (AIK) An older set of Microsoft tools used to deploy system images in the corporate environment that has been replaced by the Windows Assessment and Deployment Kit.

Windows credentials Information used only by Windows and its services. Can be used to automatically log someone into shared folders of another network.

Windows Defender A Windows application that detects spyware.

Windows domain A type of computer network in which all user accounts, computers, printers, and other network devices are registered with a central database located on one or more clusters of central computers known as domain controllers.

Windows Explorer See Explorer.

Windows Memory Diagnostic tool A tool used to thoroughly test RAM. Accessed from a command prompt using the mdsched command or using the Administrative Tools section of the Control Panel > Diagnose Your Computer’s Memory Problems link.

Windows Mobile A Microsoft operating system for phones that has been discontinued.

Windows Recovery Environment See WinRE.

Windows Resource Protection See WRP.

Windows Storage Spaces A Windows 8/10 technology that allows the combination of different types of storage devices into one writable space.

Windows Update Modified files provided for the current operating system.

Windows Upgrade Advisor A Microsoft tool that can be downloaded and executed to determine if a computer can function well with a higher version of Windows installed.

Windows XP mode See Virtual XP mode.

WinRE (Windows Recovery Environment) A tool found on the Windows installation disc and also in Windows that includes multiple tools used to troubleshoot Windows when it does not work properly.

wire stripper A tool used when adding a connector to a network cable.

wireless access point A device that receives and transmits data from multiple computers that have wireless NICs installed. The access point can be a standalone unit or can be integrated into an ADSL router.

wireless broadband A feature available from service providers that allows PC Cards, USB modems, mobile data cards, or integrated laptop connectivity to have the capability to receive, create, and communicate Internet information within a specific coverage area.

wireless card Also known as a wireless NIC, an electronic device that allows wireless network connectivity.

wireless extender Another name for a wireless repeater that increases the size of a wireless network.

wireless locator Also called a WiFi analyzer, which is used to identify wireless networks in the area (frequencies or channels used), range, SSIDs, and so on.

wireless network A type of network that uses air as the medium to connect devices.

WLAN (wireless LAN) A wireless network that consists of an access point and some wireless devices, including laptops, tablets, and smartphones.

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