Technology General Knowledge / Career Unit / University Of Technology

The correct answer is "Operating System." In the context of computers, "OS" commonly refers to the Operating System. The Operating System is a software that manages computer hardware and software resources, provides services for computer programs, and allows users to interact with the computer. It is responsible for tasks such as managing memory, controlling peripherals, and facilitating communication between software and hardware components.

The '.MOV' extension commonly refers to an animation/movie file. This file format is often used for storing video and audio data, making it suitable for movies, animations, and other multimedia content. It is a popular format supported by various media players and editing software.

The computer abbreviation 'DB' commonly stands for Database. A database is an organized collection of data that can be easily accessed, managed, and updated. It is used to store and retrieve information efficiently, making it an essential component in various applications and systems.

Flash is a type of Electrically-Erasable Programmable Read-Only Memory (EEPROM). It is a non-volatile memory technology that allows for the erasing and reprogramming of data electronically. Flash memory is commonly used in devices such as USB drives, solid-state drives, and memory cards. It is known for its high speed, durability, and low power consumption, making it a popular choice for storing data in various electronic devices.

VVVF stands for Variable Voltage Variable Frequency. This term is commonly used in the field of electrical engineering and refers to a control method for regulating the speed and torque of an electric motor. By varying both the voltage and frequency supplied to the motor, the speed and output power can be adjusted as needed. This technique is commonly used in applications such as electric traction systems, elevator control, and industrial motor control.

The '.INI' extension usually refers to a system file. INI files are configuration files used by various software applications to store settings and preferences. These files contain plain text data that can be easily edited and read by both humans and computers. System files are essential for the proper functioning of an operating system or software program, and INI files play a crucial role in storing important configuration information.

A field is a part of a database that holds only one type of information. It represents a single attribute or characteristic of a record. For example, in a database of employees, a field could be "employee name" or "employee ID". Fields are used to store specific data within a record and allow for efficient organization and retrieval of information.

The correct answer is 44.1 kHz. This is the standard sampling rate for audio CDs. It means that 44,100 samples of audio are taken per second and stored on the CD. This sampling rate is chosen because it is capable of accurately capturing the full range of human hearing, which typically extends up to 20 kHz.

The '.MPG' extension is commonly used to refer to animation/movie files. This file format is typically used to store video and audio data, making it suitable for movies, television shows, and other forms of multimedia content.

The High Frequency band is typically defined as the range of frequencies between 3 to 30 MHz. This frequency range is commonly used for various applications such as aviation communications, shortwave broadcasting, and amateur radio. It is characterized by its ability to propagate over long distances via skywave propagation, allowing for long-range communication.