Free Hardware and Software MCQs with Answers

141. 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.

142. 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.

143. 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.

144. 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.

145. 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.

146. 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.

147. 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.

148. Personal computers use a number of chips mounted on a main circuit board. What is the common name for such boards?

• A. Daughter board
• B. Motherboard
• C. Father board
• D. Breadboard

Explanation: The main circuit board that connects a personal computer's processor, memory and other components is called the motherboard. A daughterboard is an expansion board connected to a main board.

149. The output quality of a printer is measured by____________?

• A. Dot per inch
• B. Dot per sq. inch
• C. Dots printed per unit time
• D. All of above

Explanation: Printer resolution, an important measure of output quality, is commonly expressed in dots per inch, or DPI. Dots per unit time measures printing speed rather than resolution.

150. Which of the following devices can be used to directly image printed text?

• A. OCR
• B. OMR
• C. MICR
• D. All of above

Explanation: OCR, or Optical Character Recognition, converts the shapes of printed characters in an image into editable text. OMR reads marked areas, while MICR reads magnetised characters used mainly on bank cheques.