Computer — All MCQs
4795 questions available
Q2981.First generation computer use _____ technology.
Correct Answer: A
First-generation computers relied heavily on vacuum tubes (or valves) for circuitry, generating high temperatures.
Q2982.The processed form of data is called _____?
Correct Answer: A
Raw data processed, filtered, and organized into a meaningful layout is called Information.
Q2983.Which data type allows alphanumeric characters and special symbols in MS-Access?
Correct Answer: A
In Microsoft Access databases, the Text data type allows storing combinations of alphanumeric characters, symbols, and spaces.
Q2984.When was Windows 7 officially released to the public?
Correct Answer: B
Windows 7 became generally available and was officially released to the global public on October 22, 2009.
Q2985.Who invented liquid crystal display panel?
Correct Answer: C
George H. Heilemeier and his team at RCA developed the first practical liquid crystal display (LCD) panel based on dynamic scattering.
Q2986.Ctrl,Shift and Alt are called --- keys
Correct Answer: A
Ctrl, Shift, and Alt are called modifier keys because they modify the normal action of other keys when pressed in combination.
Q2987.First truly electronic computer
Correct Answer: A
The ENIAC (Electronic Numerical Integrator and Computer), completed in 1945, represents the first general-purpose fully electronic digital computer.
Q2988.Window 2007 is a (an)?
Correct Answer: B
In some legacy test structures, 'Window 2007' is used to refer to Windows Vista (internationally released in 2007), which represents an operating system.
Q2989.The first computer were programmed using _____?
Correct Answer: B
The very first electronic computers were programmed directly in raw binary machine language.
Q2990.The largest, fastest, and the most expensive type of computer is the ______ computer.
Correct Answer: A
Supercomputers represent the highest tier of computing power, engineered for highly complex calculations and simulations.
Q2991._____ computers are also called personal computers.
Correct Answer: C
Microcomputers, powered by single-chip microprocessors, are widely known as Personal Computers (PCs).
Q2992.What acts as an interface/bridge between the computer user and the computer hardware?
Correct Answer: A
The Operating System (OS) is the essential system software that acts as an interface bridge between the user/apps and the computer hardware.
Q2993.Which of the following provides those services, which are not provided by the operating system?
Correct Answer: C
Application Programs provide specific, user-oriented software capabilities (like word processors or browsers) that are separate from core operating system tasks.
Q2994.Which of the following is an example of optical storage device?
Correct Answer: B
A DVD drive uses laser beam light technology to read and write digital data on optical discs.
Q2995.Which of the following unit of the processor solves arithmetic and logical problems?
Correct Answer: C
The Arithmetic Logic Unit (ALU) is the core CPU block designed to execute calculations and logical comparison tests.
Q2996.Which of the following is the decimal equivalent (?)₁₀ of binary number (10000011)₂?
Correct Answer: B
Binary 10000011 equals 2^7 + 2^1 + 2^0 = 128 + 2 + 1 = 131 in decimal notation.
Q2997.Which of the following is binary equivalent (?)₂ of decimal number (128)₁₀?
Correct Answer: B
Decimal 128 is equal to binary 10000000 (representing exactly 2^7).
Q2998.What is the base of decimal number system?
Correct Answer: C
The decimal number system uses 10 distinct digits (0 to 9) and therefore is base-10.
Q2999.If a computer has more than one processor then it is known as _____?
Correct Answer: B
A computing system configured with two or more independent CPUs operating in parallel is classified as a Multiprocessor system.
Q3000.Keyboard and mouse are used for which purpose?
Correct Answer: C
The keyboard and mouse are classic input hardware peripherals used to transmit user commands into the computer.