Τεχνικός Υπολογιστών CompTIA A+

Abbreviation for kilobit.

Abbreviation for kilobyte.

A collection of documents related to a particular subject. In IT, these documents provide step-by-step procedures for technicians and/or users in support of specific hardware, operating systems, or apps.

The heart of an operating system, which acts as the controller and interpreter for nearly everything in a system so that hardware and software can interface and work together. It controls memory management, peripherals, and allocating other system resources to processes.

A critical system error that the operating system cannot recover from. When this happens in macOS, the Mac reboots to return to a stable state.

Used for keyless entry.

See KMS.

Allows users to provide input into the computer.

A DIN connector on the motherboard into which only the keyboard cable must connect.

A macOS utility for managing saved passwords securely.

Software designed to capture keystrokes in an effort to collect user IDs and passwords.

A set of characters that is an instruction in a particular programming or scripting language.

A binary prefix term that is used to describe 210 or 1,024 and is abbreviated KiB. Instead of saying that it is 1 kilobyte, which people tend to think of as approximately 1,000 bytes, the term kibibyte is used.

A command used through the Terminal application on a Mac or in Linux to halt a program that has frozen or is not responding: kill -9 (where 9 is the process_id).

A step to take if an application has frozen or quit responding.

Approximately 1,000 bytes of information (exactly 1,024 bytes).

A service used in companies that have 25 or more Windows computers to deploy. KMS is a software application installed on a computer. All newly installed computers register with the computer that has KMS installed. Every 180 days, the computer is re-activated for the license. Each KMS key can be used on two computers up to 10 times. Contrast with MAK.

A collection of documents used to answer commonly asked IT questions or contain IT procedures.

A Linux technology that allows the Linux kernel to function as a hypervisor.

A component that allows multiple computers to be connected to a single keyboard, monitor, and mouse.