Computer Fundamentals - Objective Questions (MCQ) with Solutions and Explanations - Set 3
- Following are the objective questions from Computer Fundamentals Section.
- Computer Fundamentals section includes the topics such as history of computers, generation of computers, classification of computers, Computer Peripherals, Storage Devices, Computer , Computer Viruses, Computer Networking, System Analysis and Design and so on.
Set - 3
Correct Answer: b. Fifth Generation
Explanation: Today’s computer fall under the fourth generation computers that uses the LSI and VLSI Integrated Circuits. For fifth generation computers it is expected for Ultra Large Scale Integrated Circuits (ULSI). The study for using Gallium Arsenide instead of silicon chips is underway. Electrons can travel 5 times faster in Gallium Arsenide compared to the silicon. Similarly, genetically engineered protein molecules are being tried for processors. Fifth generation computers are expected to have artificial intelligence, ability to use natural language.
Correct Answer: c. Fifth Generation
Explanation: ‘A computer is a slave in a box’. This is a saying due to the lack of intelligence in computer in spite of their speed, accuracy, diligence and reliability. A computer can only perform instructed task in the way already programmed. Thus, scientists are trying to develop artificial intelligence in computers so that they can think and make decisions themselves. This is expected for fifth generation computers.
Correct Answer: d. Understanding
Explanation: Computers can’t understand since they don’t have intelligence. Let’s hope in fifth generation they will achieve artificial intelligence and be able to understand.
Correct Answer: a. Knowledge information processing system
Explanation: Fifth Generation computers will have artificial intelligence and will be able to understand making knowledge information processing system possible,
Correct Answer: d. Arithmetic logic and control unit
Explanation: Arithmetic logic and control unit along with memory unit forms a complete central processing unit and central processing unit along with input/output unit forms a computer system.
Correct Answer: c. Central Processing Unit
Explanation: Control unit or arithmetic logical unit alone can not represent the function of brain to compare with neither does storage unit only. Central Processing Unit is the combination of control, arithmetic logic and memory units thus can be compared with brain that controls the body, processes its functions and remembers.
Correct Answer: a. Arithmetic and Logic Unit
Explanation: Logical sub-unit of ALU performs all the comparisons such as less than equal to or greater than. Arithmetic sub-unit of ALU performs such as addition, subtraction and so on.
Correct Answer: a. Continuous electrical pulses
Explanation: Analog computers works on the continuous electrical pulses and digital computers work on the discrete electrical pulses. Analog computers need to process physical quantities such as temperature, pressure, speed etc.
Correct Answer: a. Digital Clock.
Explanation: Automobile speed meter and clock with a dial and two hands are analog devices. Speed meter works on speed of wheel and the later works on tension of dialed spring.
Correct Answer c. Hybrid Computer
Explanation: Analog, Digital and Hybrid are the three classes of computers based on the work or principle on which computer work. Hybrid computers can perform both the tasks of analog computers as well as hybrid computers. These computers are used in aircraft, hospitals where measuring physical quantities and converting them into digital data to analyze is required.