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. Name the person who had written the first worm written for computer i.e. “The Morris worm’’?
Ans: Robert Tappan Morris Jr.
⇒ Robert Tappan Morris (born November 8, 1965) is an American computer scientist and entrepreneur. He is best known for creating the Morris worm in 1988, considered the first computer worm on the Internet. Morris was prosecuted for releasing the worm, and became the first person.
Q. What does the command prompt uses?
Ans: CLI (Command Line Interpreter)
⇒ Command Prompt is a command line interpreter application available in most Windows operating systems. It’s used to execute entered commands. Most of those commands automate tasks via scripts and batch files, perform advanced administrative functions, and troubleshoot or solve certain kinds of Windows issues.
Q. What is the full of form ALU?
Ans: Arithmetic Logic Unit
⇒ An arithmetic Logic Unit (ALU) is the part of a computer processor (CPU) that carries out arithmetic and logic operations on the operands in computer instruction words. In some processors, the ALU is divided into two units, an Arithmetic Unit (AU) and a Logic Unit (LU).
Q. Which is the first calculating device?
⇒ The earliest recorded calculating device is the abacus. Used as a simple computing device for performing arithmetic, the abacus most likely appeared first in Babylonia (now Iraq) over 5000 years ago.
Q. Who invented mechanical calculator called Pascaline?
Ans: Blaise Pascal
⇒ Pascal’s calculator (also known as the arithmetic machine or Pascaline) is a mechanical calculator invented by Blaise Pascal in the early 17th century. Pascal was led to develop a calculator by the laborious arithmetical calculations required by his father’s work as the supervisor of taxes in Rouen.
Q. Who is considered as the ‘father of artificial intelligence’?
Ans: John McCarthy
⇒ John McCarthy is one of the “founding fathers” of artificial intelligence, together with Alan Turing, Marvin Minsky, Allen Newell, and Herbert A. Simon. McCarthy coined the term “artificial intelligence” in 1955, and organized the famous Dartmouth conference in Summer 1956. This conference started AI as a field.
Q. Who used the term computer worm for the first time?
Ans: John Brunner
⇒ Computer Worm (Tapeworm) by John Brunner from The Shockwave Rider. The first description of a set of computer codes that moves from one computer to another on a network as a coherent entity. I believe this is the first reference to a computer tapeworm. As far as I know, Brunner invented the idea as well as the term.
Q. Which was first virus detected on ARPANET, the forerunner of the internet in the early 1970s?
Ans: Creeper Virus
⇒ Creeper virus is a computer virus that is most commonly recognized as the first computer virus. In 1971, Bob Thomas at BBN created Creeper as an experimental self-duplicating program that was intended not to inflict damage on, but to illustrate a mobile application.
Q. How the quality of printer is measured?
Ans: Dots per Inch
⇒ The output quality of printer is measured by Dot per inch. … The average personal computer printer today provides 300 dpi or 600 dpi. In printing, DPI (dots per inch) refers to the output resolution of a printer or imagesetter, and PPI (pixels per inch) refers to the input resolution of a photograph or image.
Q. A computer cannot “boot” if it does not have:
Ans: Operating system
⇒ An Operating System (OS) is an interface between a computer user and computer hardware. An operating system is a software which performs all the basic tasks like file management, memory management, process management, handling input and output, and controlling peripheral devices such as disk drives and printers.