Computer science is the study of processes that interact with data and that can be represented as data in the form of programs. It enables the use of algorithms to manipulate, store, and communicate digital information. A computer scientist studies the theory of computation and the design of software systems.
Q.If a computer provides database services to other, then it will be known as ?
Ans: Database Server
⇒ A Database Server is a computer in a LAN that is dedicated to database storage and retrieval. The database server holds the Database Management System (DBMS) and the databases. Upon requests from the client machines, it searches the database for selected records and passes them back over the network.
Q. Full form of URL is:
Ans: Uniform Resource Locator
⇒ A Uniform Resource Locator (URL), colloquially termed a web address, is a reference to a web resource that specifies its location on a computer network and a mechanism for retrieving it. A URL is a specific type of Uniform Resource Identifier (URI).
Q. Technology used to provide internet by transmitting data over wires of telephone network is:
⇒ Digital subscriber line is a family of technologies that are used to transmit digital data over telephone lines. In telecommunications marketing, the term DSL is widely understood to mean asymmetric digital subscriber line, the most commonly installed DSL technology, for Internet access.
Q. Who was the Founder of Bluetooth ?
Ans: Jaap Haartsen
⇒ Jacobus Cornelis Haartsen is a Dutch electrical engineer, researcher, inventor and entrepreneur best known for his role in producing the specification for Bluetooth. He obtained his master of science degree in 1986 in electrical engineering at the Delft University of Technology.
Q. Who was the father of Internet?
Ans: Vint Cerf
⇒ Vint Cerf. Widely known as a “Father of the Internet,” Cerf is the co-designer of the TCP/IP protocols and the architecture of the Internet. In December 1997, President Bill Clinton presented the U.S. National Medal of Technology to Cerf and his colleague, Robert E. Kahn, for founding and developing the Internet.
Q. Which program is run by BIOS to check hardware components are working properly while computer is turned ON ?
Ans: POST (Power On Self Test)
⇒ When power is turned on, POST (Power-On Self-Test) is the diagnostic testing sequence that a computer’s basic input/output system (or “starting program”) runs to determine if the computer keyboard, random access memory, disk drives, and other hardware are working correctly.
Q. What is full form CMOS?
Ans: Complementary Metal Oxide Semiconductor
⇒ Complementary Metal Oxide Semiconductor (CMOS), is a type of MOSFET (metal–oxide–semiconductor field-effect transistor) fabrication process that uses complementary and symmetrical pairs of p-type and n-type MOSFETs for logic functions. CMOS technology is used for constructing integrated circuit (IC) chips, including microprocessors, microcontrollers, memory chips (including CMOS BIOS), and other digital logic circuits.
Q. What is called a second generation computer?
Ans: Transistor Computer
⇒ A transistor computer, now often called a second generation computer, is a computer which uses discrete transistors instead of vacuum tubes. The first generation of electronic computers used vacuum tubes, which generated large amounts of heat, were bulky and unreliable. A second generation of computers, through the late 1950s and 1960s featured circuit boards filled with individual transistors and magnetic core memory. These machines remained the mainstream design into the late 1960s, when integrated circuits started appearing and led to the third generation computer.
Q. MPG is an file extension of which type of files?
⇒ An MPG file is a common video file that uses a digital video format standardized by the Moving Picture Experts Group (MPEG). It stores video, audio, and metadata interleaved together. MPG files are often used for creating movies that are distributed on the Internet.
Q. What is full form of SMPS ?
Ans: Switch Mode Power Supply
⇒ A switched-mode power supply is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a DC or AC source to DC loads, such as a personal computer, while converting voltage and current characteristics.