Τεχνικός Υπολογιστών CompTIA A+

A laser printing imaging process that can also be known as conditioning. This process gets the drum ready for use by applying a uniform voltage on the drum surface by using a primary/main corona or a conditioning roller.

A port that can provide power to charge and run an unpowered attached device such as a flash drive.

A Windows 8/8.1 sidebar item that, when displayed, provides quick access to a particular function, such as Search, Share Content, Start Screen, Devices, and Settings.

In a virtualization environment, a copy or backup of the virtual machine (VM) at a particular point in time used to revert the VM to that point in time.

A device that accepts cards that are inserted into the device in order to read data from the card or the chip on the card.

One or more motherboard chips that work with the processor to allow certain computer features, such as motherboard memory and capacity.

A program that locates clusters that are disassociated from the appropriate data file.

A Linux command that gives the file owner read, write, and execute permissions.

A Linux command that changes ownership.

An operating system supported by Google and Google partners that is used on laptops.

A type of subnet mask that does not have a classful boundary. CIDR is a method of allocating IP addresses based on the number of host addresses needed for a particular network.

A version of Server Message Block (SMB) that can provide access to shared network devices, files, and printers, especially in a mixed environment of MAC and Windows computers. SMB/CIFS use port 445.

A Windows command used to decrypt, modify, or copy an encrypted file.

(column address strobe [CAS] latency rating)

The time that elapses from an overvoltage condition to when surge protection begins.

The voltage level at which a surge protector begins to protect a computer.

Loading of an operating system on a computer that does not already have one installed.

A specifically constructed, climate-controlled (cool temperature and humidity of 45% to 60%) closed area with special air vents/filters, vacuums, blowers, and a circulation system that captures harmful/hazardous particulate matter, scrubs and diffuses the PM, and safely eliminates it while allowing the sensitive computer equipment to run.

A laser printing imaging process that describes removing residual toner from the drum by using a wiper blade or brush.

A Windows utility that scans the drive volume to see what files might possibly be deleted. To run this tool, use cleanmgr from a prompt.

The configuration required on a PC, printer, mobile device, or other device to enable that device to receive IP addressing information from a DHCP server.

A situation in which individuals or businesses configure their computer to use one or more Domain Name System (DNS) servers to translate uniform resource locators (URLs) into IP addresses.

An electronic component that provides timing signals to all motherboard components. A PC’s clock is normally measured in MHz.

The rate at which timing signals are sent to motherboard components (normally measured in MHz).

A vendor-specific operating system, such as macOS for Apple devices only.

A remote storage option that might include synchronization of files and/or folders.

Enables users to print in a remote location or from a wireless printer.

Storage of data on a server that is located somewhere other than the home or company, usually a data center or cloud storage service provider.

An application that loads some of the code needed to run so the application does not have to be installed locally. Also called virtual application streaming.

A device that controls network infrastructure devices such as switches or access points that is not housed within the company’s network operation center but in the cloud.

The minimum amount of space that one saved file occupies.

A function used and associated with a particular operation when creating tasks within PowerShell.

A special type of memory on a motherboard in which Setup configuration is saved.

A small, coin-shaped lithium battery that provides power to CMOS memory.

An older slot that allowed a network, analog modem, or audio card to be inserted.

A type of cabling used in video connections that has a copper core surrounded by insulation and shielding to protect against EMI.

The process that occurs when a computer is turned on with the power switch and executes POST.

In printing, complete copies of documents in numerical order one set at a time.

The number of bits that control color and determine the maximum number of colors that can be displayed.

A command issued from the Run utility in Windows to bring up a command prompt window.

An operating environment that is not graphical and in which only typed commands are available.

Otherwise known as a prompt, or command line interface (CLI) a text-based environment in which commands are entered.

An option used when working from a command prompt that allows a command to be controlled or operated on differently.

In a script, a comment is used to explain what some part of the code does, but it is ignored by the computer when running the script.

Software purchased for a specific number or users and machines.

A type of cloud deployment model that is a combination of a private cloud and a public cloud.

A type of removable flash memory storage that can be inserted into many devices, such as disk drives, cameras, mobile phones, and tablet PCs.

A function used in scripting to evaluate two values.

A feature of hardware or software that allows functionality on multiple models.

A Microsoft Windows tool used to emulate older operating systems so that older applications or hardware can be used on a newer operating system.