Computer Science/IT MCQs
Topic Notes: Computer Science/IT
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
271
Which of the following is NOT a direct application of computers in banking?
Answer:
Printing physical currency notes
** While computers are used in the design and security features of currency, the physical printing process is a specialized industrial printing operation, not a typical banking application of computers.
272
A 'workstation' is a high-end:
Answer:
Microcomputer
** A workstation is a powerful single-user microcomputer that is designed for demanding tasks like computer-aided design (CAD), 3D graphics, or software development. It is more powerful than a standard desktop PC.
273
Using a spreadsheet application like Microsoft Excel for managing a personal budget is an example of using a computer for:
Answer:
Personal finance management
** Spreadsheet software is a powerful and versatile tool that is widely used in daily life and business for tasks involving calculations, organization, and financial management.
274
A mainframe computer is primarily used for:
Answer:
Bulk data processing and enterprise resource planning for large organizations
** Mainframes are large, powerful computers that are used by corporations and government agencies for critical applications that involve processing large volumes of transactions and data, such as census, industry statistics, and financial transaction processing.
275
What best defines the traits of a computer?
Answer:
All of the above
Computers exhibit several key traits that make them powerful tools. They are highly accurate in their calculations, but this accuracy depends on correct input (the "garbage in, garbage out" principle). They are also very reliable due to their solid-state electronic components. Finally, unlike humans, they possess diligence, meaning they can perform repetitive tasks continuously without fatigue or loss of concentration. All the given options are correct descriptions of these traits.
276
The main reason for the widespread use of digital computers is their:
Answer:
Versatility and cost-effectiveness
for the widespread use of digital computers is their:
277
What characterizes a contemporary digital computer?
Answer:
An electronic automated machine capable of solving problems with words and numbers
A modern digital computer is a versatile, programmable electronic machine. Its defining characteristic is its ability to automatically process a wide range of data, including both text (words) and numerical values, to solve various problems based on a set of stored instructions.
278
Which type of computer is more susceptible to noise and interference?
Answer:
Analog computer
** Since analog computers represent data as continuous physical quantities, any small disturbance or noise in the system can affect the accuracy of the representation and the final result. Digital signals, being discrete, are more robust against noise.
279
Which technology company originally developed Java, a programming language renowned for its cross-platform compatibility, often summarized by the phrase 'write once, run anywhere'?
Answer:
Sun Microsystems
Java was developed by a team led by James Gosling at Sun Microsystems in the early 1990s. The core principle behind Java's design was platform independence, encapsulated by the 'write once, run anywhere' (WORA) motto. This means that Java code, once compiled into bytecode, can execute on any device or operating system that has a Java Virtual Machine (JVM) installed, without needing recompilation. While Sun Microsystems was later acquired by Oracle Corporation in 2010, the initial development and launch of Java were under Sun's purview. Options A, B, and D were significant technology companies at the time but were not responsible for the creation of Java.
280
Which advanced technological capability was the primary focus of development for fifth-generation computers?
Answer:
Artificial Intelligence and human-like reasoning
Fifth-generation computers, a concept that emerged in the 1980s, were primarily focused on developing Artificial Intelligence (AI) and technologies that would allow computers to exhibit human-like reasoning, understand natural language, learn from experience, and make decisions. This initiative aimed to move beyond traditional computing architectures to incorporate knowledge-based systems and parallel processing. Options B, C, and D represent technologies associated with much earlier generations of computers: vacuum tubes with the first generation, mechanical/electro-mechanical systems with generation zero/early first, and transistors/integrated circuits with the second to fourth generations, respectively.