All Free Computer Science and IT MCQs with Answers

431. _________________provides process and memory management services that allow two or more tasks, jobs, or programs to run simultaneously?

• A. Multitasking
• B. Multithreading
• C. Multiprocessing
• D. Multicomputing

Explanation: Multitasking provides the operating-system facilities needed to keep multiple programs or jobs active apparently at the same time. Multithreading concerns execution paths within a program, while multiprocessing uses multiple processors or cores.

432. What is the other name for programmed chip?

• A. A. RAM
• B. ROM
• C. LSIC
• D. PROM

Explanation: ROM is commonly described as a programmed chip because it stores instructions that remain available without continuous power. PROM is a specific ROM type that can be programmed once, but the general term intended here is ROM.

433. _____________is computer software designed to operate the computer hardware and to provide platform for running application software?

• A. Application software
• B. System software
• C. Software
• D. None of these

Explanation: System software controls hardware and provides the operating environment in which application programs run. Application software performs user tasks such as word processing or accounting.

434. What kind of memory is both static and non -volatile?

• A. RAM
• B. ROM
• C. BIOS
• D. CACHE

Explanation: ROM is non-volatile, meaning it retains its contents without power, and its stored contents are generally static during normal operation. RAM and cache are volatile, while BIOS is firmware rather than the memory category being asked for.

435. The primary function of the__________is to set up the hardware and load and start an operating system?

• A. System Programs
• B. BIOS
• C. CP
• D. Memory

Explanation: BIOS initializes and checks hardware during startup, then finds and begins loading the operating system. System programs are broader software utilities, not the specific firmware responsible for this boot process.

436. A ____________is a microprocessor -based computing device?

• A. personal computer
• B. mainframe
• C. workstation
• D. server

Explanation: A personal computer is commonly defined as a microprocessor-based computer designed for individual use. Mainframes, workstations, and servers are larger or more specialized categories in this basic classification.

437. BIOS stands for__________?

• A. Basic Input Output system
• B. Binary Input output system
• C. Basic Input Off system
• D. all the above

Explanation: BIOS means Basic Input/Output System, firmware that initializes hardware and helps start the boot process. The alternatives incorrectly replace Basic or Input/Output with unrelated terms.

438. Examples of output devices are?

• A. Screen
• B. Printer
• C. Speaker
• D. All of these

Explanation: A screen, printer, and speaker all present processed results to the user, so each is an output device. Therefore the inclusive option is correct.

439. Which of the following are input devices?

• A. Keyboard
• B. Mouse
• C. Card reader
• D. All of these

Explanation: A keyboard, mouse, and card reader all send data or commands into the computer. Because every listed device is an input device, the combined option is correct.

440. The system unit of a personal computer typically contains all of the following except:

• A. Microprocessor
• B. Disk controller
• C. Serial interface
• D. Modem

Explanation: The system unit normally houses the processor, disk controller and serial interface. A modem is usually an external or separate communication device, so it is the exception.