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.Which component of computer is also considered as it Heart?
⇒ A Microprocessor is a computer processor that incorporates the functions of a central processing unit on a single integrated circuit (IC), or sometimes up to 8 integrated circuits. The microprocessor is a multipurpose, clock driven, register based, digital integrated circuit that accepts binary data as input, processes it according to instructions stored in its memory and provides results (also in binary form) as output. Microprocessors contain both combinational logic and sequential digital logic. Microprocessors operate on numbers and symbols represented in the binary number system.
Q. An electronic path, that sends signals from one part of computer to another is?
⇒ An electronic path that sends signals from one part of a computer to another is called a bus. A bus is a communication system that transfers the data between two computers or the parts of a computer.
Q. In banking, railways etc which computers are used?
Ans: Main Frames
⇒ Mainframe computers are computers used primarily by large organizations for critical applications; bulk data processing, such as census, industry and consumer statistics, enterprise resource planning; and transaction processing.
Q. Which type of switching is used in Internet?
Ans: Packet Switching
⇒ Packet Switching is a method of grouping data that is transmitted over a digital network into packets. Packets are made of a header and a payload. Data in the header is used by networking hardware to direct the packet to its destination where the payload is extracted and used by application software. Packet switching is the primary basis for data communications in computer networks worldwide.
Q. ARP stands for?
Ans: Address Resolution Protocol
⇒ The Address Resolution Protocol is a communication protocol used for discovering the link layer address, such as a MAC address, associated with a given internet layer address, typically an IPv4 address. This mapping is a critical function in the Internet protocol suite.
Q. Who is also known as father of Jquery?
Ans: John Resig
Q. Who invented C++ ?
Ans: Bjarne Stroustrup
⇒ Bjarne Stroustrup is a Danish computer scientist, most notable for the creation and development of the C++ programming language. He is a visiting professor at Columbia University, and works at Morgan Stanley as a Managing Director in New York.
Q. Who invented keyboard?
Ans: Christoper Latham Sholes
⇒ Christopher Latham Sholes was an American inventor who invented the QWERTY keyboard, and along with Samuel W. Soule, Carlos Glidden and John Pratt, has been contended as one of the inventors of the first typewriter in the United States. He was also a newspaper publisher and Wisconsin politician.
Q. What is meaning of OMR ?
Ans: Optical Mark Reader
⇒ Optical mark recognition (also called optical mark reading and OMR) is the process of capturing human-marked data from document forms such as surveys and tests. They are used to read questionnaires, multiple choice examination paper in the form of lines or shaded areas.
Q. Which among following is responsible for specifying address of a memory location?
Ans: Address Bus
⇒ An address bus is a computer bus architecture. It is used to transfer data between devices. The devices are identified by the hardware address of the physical memory (the physical address). The address is stored in the form of binary numbers to enable the data bus to access memory storage.