Question 1

Which of the following is a Scientific computer language?

Accepted Answer

Correct Option: Fortran. To identify the scientific computer language, we must consider the primary design purpose of each option. Fortran (c), an acronym for FORmula TRANslation, was specifically designed in the mid-1950s for scientific and engineering applications. Its robust capabilities for numerical computation, array processing, and mathematical functions made it the dominant language for high-performance computing in scientific research. Basic (a) (Beginner's All-purpose Symbolic Instruction Code) was designed as a general-purpose language for beginners, not specifically for scientific computing. Cobol (b) (COmmon Business-Oriented Language) was explicitly developed for business, finance, and administrative data processing. Pascal (d) is a general-purpose, structured programming language primarily used for teaching programming concepts. While Basic and Pascal can perform scientific calculations, FORTRAN was engineered from the ground up to excel in scientific and engineering domains, making it the definitive scientific computer language among these choices.

Question 2

BASIC computer language was developed by ........... in 1964.

Accepted Answer

Correct Option: John G. Kemeny. The BASIC (Beginner's All-purpose Symbolic Instruction Code) programming language was developed in 1964. John G. Kemeny (b), along with Thomas E. Kurtz, created BASIC at Dartmouth College. Their primary goal was to make computer programming accessible to students from all disciplines, not just science and mathematics majors, by designing a simple and easy-to-learn language. Nicol Berlt (a) is not a recognized figure in the development of BASIC or any major programming language. Grace Moonie Hoper (c) is likely a misspelling of Grace Hopper, a pioneer in computer programming who developed the first compiler and was instrumental in the creation of COBOL, but not BASIC. Jim Clark (d) is known for co-founding Silicon Graphics and Netscape, not for developing BASIC. Since John G. Kemeny is the correct developer, option (e) is incorrect.

Question 3

Pascal-

Accepted Answer

Correct Option: is a computer language. Pascal is a well-known entity in computer science. Pascal (a) is a computer language; specifically, it is a high-level, imperative, and procedural programming language designed by Niklaus Wirth in the late 1960s and published in 1970. It was primarily created as a teaching tool for structured programming concepts. (b) is a unit of computer is incorrect; Pascal is software, not a hardware component or a measurable unit. (c) is a computer operating system is also incorrect; an operating system (like Windows or Linux) manages computer hardware and software resources, whereas Pascal is a language used to write programs that run on an operating system. (d) is a type of computer is incorrect; types of computers refer to hardware categories (e.g., personal computer, mainframe), not software. Therefore, the only accurate description among the choices is that Pascal is a computer language.

Question 4

The first computer language developed for programming is-

Accepted Answer

Correct Option: Fortran. This question refers to the first high-level computer language among the given options. Fortran (b), an acronym for FORmula TRANslation, was developed by IBM in the mid-1950s (with the first manual appearing in 1956 and the first compiler in 1957). It is widely recognized as the first successfully implemented high-level programming language, designed primarily for scientific and engineering computations. Cobol (a) (COmmon Business-Oriented Language) was developed later, in 1959, for business, finance, and administrative systems. C (c) was developed by Dennis Ritchie at Bell Labs between 1969 and 1973. C++ (d), an extension of C, was developed by Bjarne Stroustrup in the late 1970s. Comparing the development timelines, FORTRAN predates all other options as the earliest high-level language listed, making it the correct choice.

Question 5

Which of the following is not a computer language?

Accepted Answer

Correct Option: Fast. To identify which option is not a computer language, we must evaluate each choice. Basic (a) (Beginner's All-purpose Symbolic Instruction Code) is a well-known family of general-purpose, high-level programming languages. C (b) is a powerful, general-purpose, procedural computer programming language. Fortran (d) (FORmula TRANslation) is a high-level programming language specifically designed for numeric computation and scientific computing. All three (Basic, C, Fortran) are distinct and widely recognized programming languages. In contrast, Fast (c) is an adjective describing speed or quickness; it is not a programming language, a programming paradigm, or any recognized term in the context of computer languages. Therefore, 'Fast' is the item that does not belong to the category of computer languages, making option (e) incorrect.

Question 6

The pictorial representation of a program or alogrithm is called a .....

Accepted Answer

Correct Option: flow chart. The standard and most accurate term for a pictorial representation of a program or algorithm is a flowchart. Flow chart (c) is a diagram that illustrates the sequence of operations, decisions, and processes involved in an algorithm or a program. It uses standardized symbols to represent different types of actions or steps and arrows to show the flow of control. Chart (a) is a general term for a graphical representation, but it is not specific enough to describe the detailed logic of a program. salve chart (b) appears to be a misspelling or an unrecognized term in computer science. mix chart (d) is also not a standard or recognized term for this purpose. Since 'flow chart' precisely describes the pictorial representation of an algorithm's logic, option (e) is incorrect.

Question 7

Which programming language is used to teach graphical shapes to a schoolgoing child?

Accepted Answer

Correct Option: LOGO. Among the given options, LOGO (c) is famously known for its application in teaching programming concepts, especially geometry and graphical shapes, to children. Developed in the late 1960s, LOGO introduced 'turtle graphics,' where children control a virtual 'turtle' to draw lines and create complex geometric patterns on the screen. This visual and interactive approach makes abstract programming concepts tangible and engaging for young learners. Pailot (a) is likely a misspelling of PILOT (Programmed Inquiry, Learning, Or Teaching), an early language for computer-assisted instruction, but not primarily focused on graphical shapes for children. C (b) is a powerful general-purpose language, but its complexity makes it unsuitable for teaching graphical shapes to young children. COMAL (d) (Common Algorithmic Language) was designed as a teaching language combining BASIC and Pascal features, but LOGO's turtle graphics made it uniquely suited for teaching graphical concepts to children. Thus, LOGO is the correct answer.

Question 8

Computer program had been done in early stages by using ...........

Accepted Answer

Correct Option: Machine language. In the earliest stages of computing, programming was done at the most fundamental level, directly interacting with the computer's hardware instructions. Machine language (b) consists of binary instructions (0s and 1s) that the Central Processing Unit (CPU) understands directly without any translation. This was the absolute earliest form of programming, often involving manual input via switches or punch cards. Assembly language (a) came shortly after, offering a symbolic, human-readable representation (mnemonics) for machine code instructions, making programming slightly less tedious but still very low-level. Source code (c) refers to human-readable code written in high-level languages (like C++, Java), which emerged much later. Object code (d) is the output of a compiler or assembler, an intermediate machine-readable form, not a language used for direct programming in early stages. Spagatti code (e) is a misspelling of 'Spaghetti code,' a derogatory term for poorly structured code, not a type of language or an early programming method. Therefore, machine language represents the earliest stage.

Question 9

.......... is applicable in all computers.

Accepted Answer

Correct Option: Machine language. Machine language is the fundamental language that a computer's central processing unit (CPU) directly executes. Every computer architecture, regardless of its manufacturer or operating system, has its own specific machine language (instruction set) that is universally understood by all processors of that type. While the exact instruction set varies between architectures (e.g., $text{x86}$, $text{ARM}$), the concept of machine language as the directly executable code is applicable to all computers. High-level languages require specific compilers/interpreters for each platform. (a) Basic language: Incorrect. BASIC requires an interpreter or compiler, which may not be available on all systems. (b) Cobol language: Incorrect. COBOL also needs a specific compiler and runtime environment. (c) Machine language: Correct. Every computer executes instructions in its native machine language. (d) Fortran: Incorrect. Fortran, like other high-level languages, needs a compiler for specific platforms. (e) None of these: Incorrect, as (c) is the correct answer.

Question 10

Computer language Fortran is appropriate for ..........

Accepted Answer

Correct Option: science. Fortran (Formula Translation) was specifically designed in the $1950$s for scientific and engineering applications. Its primary strength lies in numerical computation, complex mathematical operations, and high-performance computing, making it ideal for fields like physics, chemistry, and meteorology. (a) business: Incorrect. Languages like COBOL are tailored for business applications. (b) graphic: Incorrect. While graphics can be implemented, it's not Fortran's core purpose. (c) science: Correct. Fortran's design optimizes it for scientific and mathematical problem-solving. (d) commercial: Incorrect. Similar to business, COBOL is the standard for commercial use. (e) none of these: Incorrect, as (c) is the appropriate choice.

Question 11

Which of the following computer languages is appropriate for commercial purpose?

Accepted Answer

Correct Option: Cobol. COBOL (Common Business-Oriented Language) is specifically engineered for commercial data processing. Its features, such as strong data handling capabilities, extensive file processing, and report generation, make it exceptionally well-suited for business applications like payroll, inventory, and financial systems. (a) Fortran: Incorrect. Fortran is primarily for scientific and engineering computations. (b) Basic: Incorrect. BASIC is a general-purpose language for beginners, not specialized for commercial use. (c) Cobol: Correct. COBOL was designed from the ground up for commercial applications. (d) Pascal: Incorrect. Pascal is a structured language often used for teaching and general-purpose programming, not commercial applications. (e) None of these: Incorrect, as (c) is the correct answer.

Question 12

High level computer language like English language is.......

Accepted Answer

Correct Option: cobol. COBOL (Common Business-Oriented Language) is renowned for its highly verbose, English-like syntax. Its design philosophy aimed for readability and self-documentation, making code easier to understand for business professionals and maintain over long periods. For instance, statements often use full English words like $text{MOVE}$, $text{ADD}$, $text{DISPLAY}$, which resemble natural language sentences. (a) fortran: Incorrect. Fortran has a more mathematical and concise syntax, not as English-like. (b) pascal: Incorrect. Pascal is structured but not as verbose or English-like as COBOL. (c) cobol: Correct. COBOL's syntax was intentionally designed to be very close to natural English. (d) C++: Incorrect. C++ has a powerful but complex syntax derived from C, which is far from English-like. (e) none of these: Incorrect, as (c) is the correct option.

Question 13

In which language is the most appropriate documentation possible?

Accepted Answer

Correct Option: Cobol. COBOL's design emphasizes readability and maintainability, primarily through its verbose, English-like syntax. This inherent characteristic makes COBOL code largely self-documenting. The use of descriptive words and structured divisions allows for clear understanding of program logic directly from the source code, reducing the need for extensive external documentation and making it highly suitable for large, long-lived business applications where clarity and maintainability are paramount. (a) Fortran: Incorrect. Fortran's concise, mathematical syntax often requires external documentation. (b) Cobol: Correct. Its English-like structure naturally facilitates comprehensive in-code documentation. (c) Pascal: Incorrect. While structured, Pascal doesn't possess the same level of English-like verbosity for inherent documentation. (d) C++: Incorrect. C++ is complex and requires diligent commenting and external documentation. (e) None of these: Incorrect, as (b) is the most appropriate choice.

Question 14

Which language is used in a complex scientific calculation.

Accepted Answer

Correct Option: Fortran. Fortran (Formula Translation) was specifically created for numerical and scientific computing. Its robust capabilities for handling complex mathematical expressions, array operations, and optimizing performance make it the preferred language for intensive scientific calculations, simulations, and engineering problems in various domains, including weather forecasting, structural analysis, and computational fluid dynamics. (a) Basic: Incorrect. BASIC is a general-purpose language, not optimized for complex scientific calculations. (b) Fortran: Correct. Fortran is specifically designed and highly efficient for scientific and engineering computations. (c) Cobol: Incorrect. COBOL is for business applications, not scientific calculations. (d) Pascal: Incorrect. Pascal is a structured language often used for teaching, but not primarily for complex scientific calculations. (e) None of these: Incorrect, as (b) is the correct answer.

Question 15

BASIC programming language is used for ..........

Accepted Answer

Correct Option: simple language for beginners. BASIC (Beginner's All-purpose Symbolic Instruction Code) was developed in $1964$ at Dartmouth College with the explicit goal of providing a simple, easy-to-learn programming language for students and beginners, particularly those outside of science and mathematics fields. Its straightforward syntax and interactive environment made it highly accessible for learning fundamental programming concepts. (a) commercial purpose: Incorrect. COBOL is designed for commercial purposes. (b) scientific calculation: Incorrect. Fortran is designed for scientific calculations. (c) to teach a child: While it can be used for this, (d) is a more comprehensive and accurate description of its original design intent. (d) simple language for beginners: Correct. This aligns perfectly with the acronym and historical purpose of BASIC. (e) none of these: Incorrect, as (d) is the most accurate description.

Question 16

The language which is understood by computers is ..........

Accepted Answer

Correct Option: Machine language. Computers fundamentally operate on machine language, which is the lowest-level programming language consisting of binary code (sequences of $0$s and $1$s). These binary instructions are directly executed by the computer's central processing unit (CPU) without the need for translation. All high-level programming languages must be compiled or interpreted into machine language before a computer can understand and execute them. (a) American language: Incorrect. This is a natural human language, not understood by computers. (b) Machine language: Correct. This is the only language directly executable by the CPU. (c) Secrect language: Incorrect. This is not a recognized computer language term. (d) All of these: Incorrect, as only machine language is directly understood. (e) None of these: Incorrect, as (b) is the correct option.

Question 17

Computer language JAVA was developed by ..........

Accepted Answer

Correct Option: Sun micro system. Java was developed by James Gosling and his team at Sun Microsystems, initially as part of the Green Project, and was officially released in $1995$. Sun Microsystems was later acquired by Oracle Corporation in $2010$, and Java development continued under Oracle. The language was designed to be platform-independent, allowing programs to "write once, run anywhere" (WORA). (a) IBM: Incorrect. IBM developed many technologies but not Java. (b) Microsoft: Incorrect. Microsoft developed languages like C and Visual Basic. (c) Sun micro system: Correct. Java was originally developed by Sun Microsystems. (d) Infosystem: Incorrect. Infosys is an IT services company. (e) None of these: Incorrect, as (c) is the correct answer.

Question 18

Mostly computer can understand—

Accepted Answer

Correct Option: English like high level instruction. While computers natively execute machine language (binary code), programmers primarily write code in high-level languages. These languages are designed to be more human-readable and often employ syntax that resembles English words and phrases (e.g., $text{if}$, $text{while}$, $text{print}$). A computer system, through a compiler or interpreter, translates these "English-like high-level instructions" into machine code for execution. Therefore, from a practical programming perspective, computers are designed to process and "understand" these high-level instructions as input. (a) English like high level instruction: Correct. This describes the form of input programmers use, which computers process via translation. (b) Basic: Incorrect. BASIC is a specific high-level language, not a general description of what computers understand. (c) Any language: Incorrect. Computers cannot understand any arbitrary language. (d) All of these: Incorrect. (e) None of these: Incorrect, as (a) is the most appropriate description of the input form.

Question 19

is a set of symbols, keywords and set of rules to construct statement.

Accepted Answer

Correct Option: Programming language. A programming language is a formal language that defines a set of symbols, keywords, and a set of rules (syntax) to construct statements. These elements allow programmers to write instructions that a computer can understand and execute. Option (b) Programming language correctly encompasses all these components. Option (a) Computer program refers to the output or result written in a programming language, not the language itself. Option (c) Assemble is a process of converting assembly language to machine code. Option (d) Syntax refers specifically to the rules for structuring statements, which is a part of a programming language, but not the entire set of symbols, keywords, and rules as described.

Question 20

Computer language used on the internet is .

Accepted Answer

Correct Option: Java. Java is a widely-used, object-oriented programming language known for its platform independence and robust capabilities. It has been extensively used for developing web applications, server-side logic, and mobile applications (Android), making it a prominent language on the internet. While JavaScript is dominant for client-side web interactivity, Java is a strong contender for server-side web development and has historically been used for client-side applets. Option (a) Basic, (b) Cobol, and (d) Pascal are older languages not primarily used for modern internet development. Basic is for beginners/simple apps, Cobol for business/finance, and Pascal for structured programming/desktop applications.

Question 21

Which of the following is a popular programming language for developing multimedia web pages.

Accepted Answer

Correct Option: Java. Java has been a popular choice for developing web applications that can handle multimedia content, particularly through server-side technologies like JavaServer Pages (JSP) and various frameworks for backend web development. Historically, Java Applets were also used for interactive multimedia on web pages, although they are less common now. Among the given options, Java is the most suitable for this purpose. Option (a) COBOL is for business applications. Option (c) BASIC is an older general-purpose language. Option (d) Assembler refers to a low-level language or its translator, unsuitable for web page development.

Question 22

A contains specific rules and words that express the logical steps of an algorithm.

Accepted Answer

Correct Option: programming language. A programming language is a formal language that provides a set of specific rules (syntax) and keywords (words) that allow a programmer to express the logical steps of an algorithm in a structured and unambiguous way. This enables the translation of human-understandable logic into machine-executable code. Option (a) programming language is the correct answer. Option (b) programming structure refers to organizational patterns within a program. Option (c) syntax refers only to the rules, not the words. Option (d) logic chart (flowchart) is a graphical representation, not a textual container of rules and words.

Question 23

A graphic presentation of the sequence of steps needed to solve a programming problem is called a-

Accepted Answer

Correct Option: program flowchart. A program flowchart is a graphical representation of an algorithm or a process, showing the steps as boxes of various kinds (e.g., process, decision, input/output) and their order by connecting them with arrows. It is a visual tool used in programming to plan and illustrate the sequence of operations and decisions involved in solving a problem. Option (a) program flowchart is the standard and correct term for this graphic presentation. Options (b) step chart, (c) rule diagram, and (d) program graph are not standard or precise terms for this specific concept in computer science.

Question 24

The operating system called UNIX is typically used for.

Accepted Answer

Correct Option: All of these. UNIX and its derivatives (like Linux and macOS) are incredibly versatile and widely used across various computing environments. They are foundational to many modern operating systems. UNIX-like systems power a significant portion of: (a) Desktop computers (e.g., macOS, Linux distributions), (b) Laptop computers (e.g., macOS, Linux distributions), (c) Supercomputers (most run Linux due to its performance and scalability), and (d) Web servers (Linux is the dominant OS for internet infrastructure). Therefore, option (e) All of these is the correct answer, reflecting UNIX's widespread applicability.

Question 25

A prescribed set of well-defined instructions for solving mathematical problems is called-

Accepted Answer

Correct Option: An algorithm. An algorithm is a finite sequence of well-defined, unambiguous, and computer-implementable instructions, typically designed to solve a specific class of problems or perform a computation. It is a step-by-step procedure for solving a problem, especially by a computer. Option (d) An algorithm perfectly matches this definition. Option (a) A compiler is a program that translates source code. Option (b) A code is a general term for program instructions, but less precise than 'algorithm' for a 'prescribed set of instructions'. Option (c) A description is merely an account of something, not the set of instructions itself.

Question 26

C, BASIC, COBOL, and Java are examples of ...... language.

Accepted Answer

Correct Option: high-level. C, BASIC, COBOL, and Java are all examples of high-level programming languages. High-level languages are designed to be more human-readable and abstract than low-level languages (like assembly or machine code). They use syntax closer to natural language and provide features that simplify programming, such as automatic memory management and complex data structures, abstracting away the low-level details of computer hardware. Option (d) high-level correctly categorizes all these languages. Option (a) low-level is incorrect as these are not close to hardware. Option (c) system programming is a specific application area, not a general classification for all these languages.

Question 27

Computer programs are written in a high level programming language, however the human readable version of a program is called-

Accepted Answer

Correct Option: Source code. When programmers write computer programs using a high-level programming language, the text they write is called source code. This code is human-readable and understandable, allowing programmers to develop, debug, and maintain software. It then needs to be compiled or interpreted into machine code for the computer to execute. Option (c) Source code is the correct term. Option (a) Cache is a high-speed data storage layer. Option (b) Instruction set is a collection of low-level instructions a CPU understands. Option (d) Word size refers to the number of bits a CPU processes at once. None of these relate to the human-readable form of a program.

Question 28

Which one of the following is computer high-level programming language?

Accepted Answer

Correct Option: All of the above. A high-level programming language is designed to be user-friendly and abstract away the complexities of computer hardware, allowing programmers to write code using more human-readable syntax. Let's evaluate each option: (a) 'COBOL' (Common Business-Oriented Language) is a high-level programming language primarily used for business, finance, and administrative systems. (b) 'PASCAL' is a high-level, imperative, and procedural programming language, influential in teaching structured programming. (c) 'BASIC' (Beginner's All-purpose Symbolic Instruction Code) is a family of general-purpose, high-level programming languages whose design philosophy emphasizes ease of use. Since COBOL, PASCAL, and BASIC are all recognized as high-level programming languages, the correct choice is (d) 'All of the above'.

Question 29

Assembly language is considered as—

Accepted Answer

Correct Option: low level programming language. Assembly language is a 'low-level programming language'. It is a symbolic representation of machine code, using mnemonics (e.g., ADD, MOV, JMP) to represent machine instructions. While it is more human-readable than raw binary machine code, it is still very close to the computer's hardware architecture and requires an assembler to translate it into machine code. Option (a) 'high level programming language' is incorrect, as high-level languages are much more abstract. Option (c) 'machine language' is also incorrect; assembly language is a symbolic representation of machine language, not machine language itself. Machine language is the raw binary instructions directly executed by the CPU. Therefore, assembly language occupies the tier just above machine language, making it a low-level programming language.

Question 30

A set of rules for telling the computer what operations to performs is called a ......?

Accepted Answer

Correct Option: Programming language. A 'programming language' is a formal language comprising a set of instructions used to produce various kinds of output. It is a set of rules that allow a programmer to specify the operations a computer should perform. Option (a) 'Procedural language' is a type of programming language, focusing on a sequence of statements to change program state, but 'programming language' is the overarching term. Option (b) 'Structures' refers to data organization, not a set of rules for operations. Option (c) 'Natural language' refers to human languages, which computers do not directly understand for executing operations. Option (d) 'Command language' is used for issuing specific commands, but a programming language provides a much broader and more complex set of rules for defining operations. Therefore, 'programming language' is the most accurate and comprehensive term.

Question 31

A mistake in an algorithm that causes incorrect results is called a ......?

Accepted Answer

Correct Option: Logical error. A 'logical error' occurs when a program compiles and runs without crashing, but produces incorrect or unintended results because of a flaw in the program's logic or algorithm. For example, if a calculation should be $A + B$ but is mistakenly written as $A - B$, this is a logical error. Option (b) 'Syntax error' refers to violations of the programming language's grammar rules, which prevent the code from compiling or being interpreted. Option (c) 'Procedural error' is not a standard term in this context. Option (d) 'Compiler error' is a type of error detected by the compiler, often due to syntax errors, preventing the program from being built. Option (e) 'Machine error' typically refers to hardware malfunctions or low-level system issues, not a mistake in the algorithm itself. Thus, a logical error directly causes incorrect results from a running algorithm.

Question 32

C++ is ......?

Accepted Answer

Correct Option: A programming language. C++ is a powerful, general-purpose programming language that supports multiple programming paradigms, including object-oriented, generic, and procedural programming. It is widely used for system programming, game development, embedded systems, and more. Option (a) 'An operating system' is incorrect; operating systems like Windows or Linux are built using languages like C and C++, but C++ itself is not an OS. Option (c) 'A software' is too general; while C++ is used to create software, C++ itself is the language used for development, not an application or piece of software in the typical user sense. Therefore, the most precise classification is 'A programming language'.

Question 33

FORTRAN is not used for ......? A. Drawing pictures B. Carrying out mathematics computations

Accepted Answer

Correct Option: Only A. FORTRAN (Formula Translation) was one of the earliest high-level programming languages, specifically designed for numerical computation and scientific computing. It excels at complex mathematical and scientific calculations. Therefore, statement B, 'Carrying out mathematics computations,' is precisely what FORTRAN is used for. Conversely, FORTRAN was not primarily designed for graphics or 'drawing pictures' (statement A). While modern FORTRAN compilers and libraries might offer some graphical capabilities, its core purpose and historical strength do not lie in graphics rendering. The question asks what FORTRAN is not used for. Since it is not primarily used for drawing pictures (A), but is used for mathematics computations (B), the correct answer is 'Only A'.

Question 34

Which of the following is NOT a computer programming language?

Accepted Answer

Correct Option: C++++. Let's analyze each option: (a) 'Java' is a widely used, object-oriented programming language. (b) 'Swift' is a powerful and intuitive programming language developed by Apple for building apps across all Apple platforms. (c) 'Python' is a popular high-level, general-purpose programming language known for its readability and versatility. (d) 'C++++' is not a recognized or standard computer programming language. While C++ (pronounced 'C plus plus') is a prominent language, the notation 'C++++' does not correspond to any established programming language. Therefore, 'C++++' is the one that is NOT a computer programming language among the choices provided.

Question 35

What is the full form of DDL in terms of computer jargon?

Accepted Answer

Correct Option: Data Definition Language. In the context of database management systems (DBMS), DDL stands for 'Data Definition Language'. DDL is a standard for commands that define the different structures in a database. DDL statements create, modify, and remove database objects such as tables, indexes, and users. Common DDL commands include CREATE, ALTER, and DROP. Options (b) 'Digital Data Logic', (c) 'Dynamic data Language', and (d) 'Direct Data Language' are not standard or recognized acronyms for DDL in computer jargon. Therefore, 'Data Definition Language' is the correct and universally accepted full form.

Question 36

In Computer field, What does LIFO stand for?

Accepted Answer

Correct Option: Last-In-First-Out. LIFO is a fundamental principle in computer science, particularly in data structures like stacks. It stands for 'Last-In-First-Out'. This principle dictates that the last element added to a data structure is the first one to be removed. Imagine a stack of plates: the last plate placed on top is the first one you would take off. This contrasts with FIFO (First-In-First-Out), used in queues. Options (b) 'Left-in-First-Out', (c) 'Last-in-Finish-Out', and (d) 'Lost-in-First-Out' are not recognized acronyms or principles in the computer field. Therefore, 'Last-In-First-Out' is the correct and widely accepted meaning of LIFO.

Question 37

Which of the following is not a high-level language?

Accepted Answer

Correct Option: Machine language. High-level languages are programming languages that are more abstract and closer to human language, making them easier to read, write, and maintain. They typically require a compiler or interpreter to translate them into machine code. Let's examine the options: (a) 'C++' is a high-level programming language. (c) 'Java' is also a high-level programming language. (d) 'C' is generally considered a high-level language, although it allows for low-level memory manipulation, earning it the designation of a 'mid-level' language by some, but it is certainly not a low-level language like assembly or machine code. (b) 'Machine language' is the lowest-level programming language, consisting of binary instructions (0s and 1s) that a computer's CPU can directly execute. It is far from human-readable and requires no translation. Therefore, 'Machine language' is not a high-level language.

Question 38

A combinational circuit that selects binary information from one of many input lines and directs it to a single output line is known as—

Accepted Answer

Correct Option: Multiplexer. The question describes the fundamental function of a multiplexer (MUX). A multiplexer is a combinational logic circuit that selects one of several analog or digital input signals and forwards the selected input into a single output line. The selection of a particular input line is controlled by a set of select lines. For an $n$-to-$1$ multiplexer, there are $n$ input lines and $log2 n$ select lines. Option (a) Multiplexer: This is the correct answer. A multiplexer, often abbreviated as MUX, is precisely designed to select one of many input data lines and route it to a single output line. For example, an $8 times 1$ MUX has eight input lines and one output line, with three select lines to choose which input is passed to the output. Option (b) Decoder: A decoder is a combinational circuit that converts binary information from $n$ input lines to $2^n$ unique output lines. It does not select one input to a single output; rather, it activates one specific output based on the binary input code. For instance, a $2 times 4$ decoder takes a 2-bit input and activates one of its four output lines. Option (c) De-multiplexer: A de-multiplexer (DEMUX) performs the inverse operation of a multiplexer. It takes a single input data line and routes it to one of many output lines, based on the value of the select lines. So, it directs one input to multiple outputs, which is opposite to what the question asks. Option (d) Encoder: An encoder performs the inverse operation of a decoder. It converts information from $2^n$ input lines to an $n$-bit binary code. It typically has multiple input lines (often $2^n$) and generates a unique binary code on its $n$ output lines corresponding to the active input line. This is not about selecting one input to one output.

Comp Chap 6

38 Questions Available

Comp Chap 6

38 Questions Available

Question 1: Which of the following is a Scientific computer language?

Question 2: BASIC computer language was developed by ........... in 1964.

Question 3: Pascal-

Question 4: The first computer language developed for programming is-

Question 5: Which of the following is not a computer language?

Question 6: The pictorial representation of a program or alogrithm is called a .....

Question 7: Which programming language is used to teach graphical shapes to a schoolgoing child?

Question 8: Computer program had been done in early stages by using ...........

Question 9: .......... is applicable in all computers.

Question 10: Computer language Fortran is appropriate for ..........

Question 11: Which of the following computer languages is appropriate for commercial purpose?

Question 12: High level computer language like English language is.......

Question 13: In which language is the most appropriate documentation possible?

Question 14: Which language is used in a complex scientific calculation.

Question 15: BASIC programming language is used for ..........

Question 16: The language which is understood by computers is ..........

Question 17: Computer language JAVA was developed by ..........

Question 18: Mostly computer can understand—

Question 19: is a set of symbols, keywords and set of rules to construct statement.

Question 20: Computer language used on the internet is .

Question 21: Which of the following is a popular programming language for developing multimedia web pages.

Question 22: A contains specific rules and words that express the logical steps of an algorithm.

Question 23: A graphic presentation of the sequence of steps needed to solve a programming problem is called a-

Question 24: The operating system called UNIX is typically used for.

Question 25: A prescribed set of well-defined instructions for solving mathematical problems is called-

Question 26: C, BASIC, COBOL, and Java are examples of ...... language.

Question 27: Computer programs are written in a high level programming language, however the human readable version of a program is called-

Question 28: Which one of the following is computer high-level programming language?

Question 29: Assembly language is considered as—

Question 30: A set of rules for telling the computer what operations to performs is called a ......?

Question 31: A mistake in an algorithm that causes incorrect results is called a ......?

Question 32: C++ is ......?

Question 33: FORTRAN is not used for ......? A. Drawing pictures B. Carrying out mathematics computations

Question 34: Which of the following is NOT a computer programming language?

Question 35: What is the full form of DDL in terms of computer jargon?

Question 36: In Computer field, What does LIFO stand for?

Question 37: Which of the following is not a high-level language?

Question 38: A combinational circuit that selects binary information from one of many input lines and directs it to a single output line is known as—