COMPUTER SCIENCE

  Q1.Which of the following is not a characteristic of a computer? a) Accuracy b) Diligence c) Intelligence d) Speed → Answer: c) Intelligence Q2.The first generation of computers used a) Transistors b) Vacuum tubes c) Integrated Circuits d) Microprocessors → Answer: b) Vacuum tubes Q3. Which of the following is a microcomputer? a) Laptop b) Mainframe c) Supercomputer d) Minicomputer → Answer: a) Laptop Q4. The ALU of a computer performs a) Logic and arithmetic operations b) Storage functions c) Data transfer d) Input-output operations → Answer: a) Logic and arithmetic operations Q5. The brain of a computer is: a) CPU b) Monitor c) Keyboard d) Hard Disk → Answer: a) CPU Q6. Which component interprets and executes instructions? a) Control Unit b) ALU c) Memory Unit d) Input Unit → Answer: a) Control Unit Q7. The speed of the processor is measured in a) Hertz b) Bits c) Bytes d) Seconds → Answer: a) Hertz Q8. Which of the following represents the fifth generation of computers? a) Vac...

 Q1. What is OOP? Ans Object-Oriented Programming focuses on objects and classes rather than procedures. Q2.What is a class? Ans A class is a blueprint for creating objects. Q3. What is an object? Ans An object is an instance of a class. Q4. What is encapsulation? Ans Encapsulation is binding data and methods together in a single unit. Q5.What is inheritance? Ans Inheritance allows a class to acquire properties and behavior of another class. Q6. What is polymorphism? Ans The ability of functions or operators to behave differently based on context. Q7. What is overloading? Ans. Defining multiple functions with the same name but different parameters. Q8. How is C related to C++? Ans. C++ is an extension of C that adds object-oriented features. Q9. What is the use of cout? Ans cout is used for displaying output on the screen. Q10 What is the use of cin? Ans cin is used for taking input from the user. Q11. What is a preprocessor directive? Ans A statement that begins with # and is proc...

                                                                                                                         UNIT-1 Q1. What is the need for Object-Oriented Programming (OOP)? Q2. Explain the differences between the procedural and object-oriented approach. Q3. What are the main characteristics of OOP? Q4.Define the following terms with examples: a) Object b) Class c) Inheritance d) Polymorphism Q5. What is reusability in OOP? Give an example. Q6. What are the advantages of OOP over structured programming? Q7. What is the relationship between C and C++? Q8.What are preprocessor directives? Give examples. Q9. Explain the us...

 Q1. Who is called the Father of Computers?    Ans  Charles Babbage. Q2. What is processor speed measured in? Ans  Hertz (Hz), usually in GHz. Q3. What are registers? Ans Small high-speed memory locations inside the CPU. Q4. What is the full form of ALU? Ans Arithmetic Logic Unit. Q5. What is EPROM? Ans Erasable Programmable Read Only Memory. Q6. What does CD-R stand for? Ans Compact Disc – Recordable. Q7. What does DVD stand for? Ans Digital Versatile Disc. Q8. What is OCR? Ans Optical Character Recognition – reads printed text. Q9. What is OMR? Ans Optical Mark Recognition – reads marks on answer sheets or forms. Q10. What is MICR? Ans Magnetic Ink Character Recognition – used in bank cheques. Q11. What is a joystick? Ans  A pointing device used for gaming and simulation. Q12. What is a digitizer? Ans Converts drawings into digital data. Q13. What is a CRT monitor? Ans Cathode Ray Tube monitor – uses electron beams to display images. Q14. What is an LCD m...

                                                                                                                                                                     UNIT-1   Q1 . Explain the block diagram of a computer system and describe the functions of each component in detail. Q2.   Describe the different generations of computers and discuss the major technological developments in each generation. Q3. Compare the different types of computers – micro, mini, mainframe, and supercomput...

   The OSI model is a layered framework for the design of network systems that design allows for communication across all types of computer systems. It consists of seven separate but related layers, each of which defines a segment of the process of moving information across a network. Understanding the fundamentals of the OSI model provides a solid basis for the exploration of data communication. Layered Architecture build of seven ordered layers physical layer data link layer network layer  transport layer session layer presentation layer application layer As the message transfer from one device to another device, it may pass through many intermediate nodes. These intermediate nodes usually involve only the 1st three layers of OSI models. In developing the model, the designers distilled the process of transmitting data down to its most fundamental elements. They identified which networking function had related users and collected functions into discrete groups that becam...

 If you are looking for the most important general computer science acronyms short forms you are in the right place. Here we have mentioned some popular full forms you must know. These are also important from a competitive examination point of view. Computer Hardware Related Acronyms Short Form          Full Form AMD         Advanced Micro Devices ATA           Advanced Technology Attachment ATX         Advanced Technology Extended CD           Compact Disc CD-ROM Compact Disc-Read-Only Memory CD-RW         Compact Disc-Rewritable CPU         Central Processing Unit DVD         Digital Versatile Disc DVD-ROM Digital Video Disc-Random Access Memory DVD-ROM Digital Video Disc-Read Only Memory DVD-R         Digital Video Disc-Recordable DVD-RW Digital Video ...