General Awareness: Technology And You

The correct answer is "Operating System." In computer terminology, "OS" commonly refers to the Operating System. The Operating System is a software that manages computer hardware and software resources, providing common services for computer programs. It controls and coordinates the execution of other programs and manages tasks such as memory allocation, input/output operations, and file management.

The '.MOV' extension is commonly used to refer to animation/movie files. This file format is often associated with Apple's QuickTime software and is widely used for storing video and audio data. It supports various codecs and is compatible with both Mac and Windows operating systems.

VVVF stands for Variable Voltage Variable Frequency. This term is commonly used in electrical engineering and refers to a type of control method used in variable frequency drives (VFDs). VVVF control allows for the adjustment of both the voltage and frequency of the electrical power supplied to a motor, enabling precise control of motor speed and torque. This technology is widely used in various applications, such as industrial machinery, elevators, and HVAC systems, to optimize energy efficiency and performance.

Flash is a type of Electrically-Erasable Programmable Read-Only Memory (EEPROM). It is a non-volatile memory technology that can be electrically erased and reprogrammed. Flash memory is commonly used in devices such as USB drives, solid-state drives, and memory cards. It offers high storage capacity, fast read and write speeds, and low power consumption, making it suitable for a wide range of applications.

The correct answer is Video Home System. VHS is the most common format for a home video recorder. It refers to the Video Home System, which is a standard for recording and playing back analog video on magnetic tape cassettes.

David Filo and Jerry Yang developed Yahoo. They founded the company in 1994 while they were graduate students at Stanford University. Yahoo started as a web directory and quickly grew into a popular internet portal offering a wide range of services such as email, search engine, news, and more. Filo and Yang played key roles in the early development and success of Yahoo, making it one of the pioneering companies of the internet era.

Most modern TVs draw power even if turned off in order to keep the remote control function active. The remote control operates through infrared signals that require a small amount of power to be constantly supplied to the TV. This allows the user to turn on the TV using the remote control, even when it is in standby mode.

A resistor is made from a variety of materials, such as carbon, which inhibits the flow of current. This means that when current passes through a resistor, it encounters resistance, causing a drop in voltage and limiting the flow of current. Therefore, a resistor is the correct answer in this context.

A field is a part of a database that holds only one type of information. It represents a single piece of data within a record and is used to store specific attributes or characteristics of the data. For example, in a database of employees, a field could be used to store the employee's name, address, or salary. Fields are organized into records, which contain multiple fields, and records are further organized into files or tables within a database.

The purpose of a choke in a tube light is to increase the voltage momentarily. A choke is an inductor that stores energy in its magnetic field when the current passes through it. When the current is interrupted, the choke releases the stored energy, causing a momentary increase in voltage. This voltage spike helps to initiate and maintain the ionization process in the tube light, ensuring that it starts and operates efficiently.

The '.MPG' extension typically refers to an animation/movie file. This file format is commonly used to store video and audio data, making it suitable for movies, animations, and other multimedia content. It is a widely supported format and can be played on various media players and devices.

The SPICE simulator was introduced in the 1970s. This decade saw significant advancements in computer technology and electronic design, making it an ideal time for the development of a simulation tool like SPICE. SPICE, which stands for Simulation Program with Integrated Circuit Emphasis, revolutionized the field of electronic circuit design by allowing engineers to accurately model and analyze the behavior of complex circuits. Its introduction in the 1970s marked a major milestone in the history of electronic design automation.

The AIEE, which is now known as the IEEE, was founded in the 1880s. This indicates that it was established during that particular decade.

Alan Turing is largely responsible for breaking the German Enigma codes during World War II. He developed a machine called the Bombe that helped decipher the encrypted messages. Turing's work in codebreaking laid the foundation for modern cryptography and also contributed to the development of artificial intelligence. His concept of the "Turing Test" is a test to determine a machine's ability to exhibit intelligent behavior, which is a fundamental concept in the field of AI.

The correct answer is 1900s because the first transatlantic radio broadcast occurred in 1901. Guglielmo Marconi successfully transmitted a radio signal across the Atlantic Ocean from Cornwall, England to Newfoundland, Canada. This groundbreaking achievement marked the beginning of long-distance wireless communication and revolutionized global communication systems.