Dive into the world of technology with our comprehensive article titled Computer Components Software, OS and Programming Languages GK MCQs With Answer & Explanation in English. This resource is tailored for enthusiasts and learners who want to deepen their understanding of software components, operating systems, and programming languages.
Explore key concepts through well-structured multiple-choice questions, complete with detailed answers and explanations to help you master the subject effortlessly. Perfect for competitive exams, interviews, or personal enrichment, this guide covers everything you need to know!
1. Which of the following languages are directly executable by a computer’s CPU?
- Machine Language
- High Language
- Assembly Language
- Second generation Language
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Answer: Machine Language
Machine languages are low-level programming languages that consist of binary code and are directly executable by a computer’s CPU (Central Processing Unit). These languages are specific to the computer’s architecture and are the most basic form of programming languages. Instructions in machine language directly correspond to the CPU’s native instruction set, making them highly efficient but challenging for humans to work with due to their complexity.
2. What is used in most programs that is a part of a program and guides the user through certain steps?
- Software
- Wizard
- Wiki
- None of the above
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Answer: Wizard
A software wizard or setup assistant is a component of a program designed to guide users through specific tasks or complex processes. These wizards provide a step-by-step interface, often with user-friendly instructions, to simplify the execution of various tasks. Common uses of software wizards include software installation, configuring settings, or performing tasks that may require a series of user inputs.
3. Panther (10.3), Jaguar (10.2), Puma (10.1), and Cheetah (10.0) are examples of what kind of operating system?
- Windows OS
- Mac OS
- Linux Operating Systems
- Android Operating Systems
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Answer: Mac OS
Panther, Jaguar, Puma, and Cheetah are names of Mac OS operating systems, specifically versions of macOS (formerly known as Mac OS X). Apple, Inc. has a tradition of naming its macOS versions after big cats. These names are used as marketing identifiers for different releases of the operating system, and each version typically introduces new features, improvements, and enhancements.
4. Which of the following was used in programming the first computers?
- Object code
- Source code
- Machine Language
- Assembly Language
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Answer: Machine Language
Machine language or machine code was indeed used in programming the first computers. In the early days of computing, programmers wrote instructions directly in machine code, which consisted of binary digits (0s and 1s). These instructions were executed directly by the computer’s hardware. Programming in machine code was a highly technical and labor-intensive process, and it was later replaced by higher-level programming languages to simplify programming tasks.
5. DDL is used to define the structure of a database, including the tables, columns, and data types that it contains. What is its full form?
- Data Definition Language
- Data Definition Link
- Determination Language
- None of these
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Answer: Data Definition Language
DDL stands for Data Definition Language, and it is a subset of SQL (Structured Query Language). DDL is used to define the structure and organization of a database. It includes commands for creating, altering, and deleting database objects such as tables, indexes, and constraints. DDL is essential for database administrators and developers to design and manage the database schema.
6. Structured programming languages such as C, COBOL and FORTRAN were used in which of the following computers?
- First Generation Computers
- Second Generation Computers
- Third Generation Computers
- Fourth Generation Computers
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Answer: Third Generation Computers
Third-generation computers, developed in the 1960s, used structured programming languages such as C, COBOL, and FORTRAN. These high-level languages allowed for more structured and human-readable code compared to earlier machine languages. They offered features like improved data handling, control structures, and modular programming, making software development more efficient and less error-prone.
7. The slogan “Write once, run anywhere” is related to which of the following programming languages?
- COBOL
- Java
- HTML
- XML
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Answer: Java
The slogan “Write once, run anywhere” is associated with the Java programming language. Java is known for its platform independence, meaning that Java programs can be written once and executed on different platforms without modification. This is achieved through the Java Virtual Machine (JVM), which interprets and executes Java bytecode, providing a level of abstraction from the underlying hardware and operating system.
8. Which among the following is correct about 4GL?
- A computer brand
- A software brand
- A software program
- A programming language
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Answer: A programming language
4GL stands for fourth-generation programming language. These languages are designed to be even more user-friendly and high-level than third-generation languages. They often focus on specific application domains and aim to simplify software development further by providing higher-level abstractions. Examples of 4GLs include SQL for database querying and report generators for creating business reports.
9. In a computer file system, which among the following is top or first in hierarchy?
- root directory
- parent directory
- home directory
- working directory
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Answer: root directory
In computer file systems, the root directory is the top-level directory or folder in the hierarchy. It serves as the starting point for the file system’s structure and contains subdirectories and files. The root directory is denoted by a forward slash (“/”) in Unix-based systems or a backward slash (“”) in Windows-based systems.
10. Which among the following is used for removing a software bug/defect which is available for free of cost from the software provider?
- Version update
- Patch
- Help
- None of the above
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Answer: Patch
A patch is a piece of software designed to correct or “patch” a specific software bug or defect. It is provided by the software provider, typically free of cost, to address issues discovered after the software’s initial release. Patches are essential for maintaining the integrity and security of software applications by fixing vulnerabilities and improving functionality.
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