EPISODE-278-2811 .- Which register holds the actual instruction being executed currently by the computer?
(A) Memory address register (MIR)
(B) Instruction register (IR)
(C) Memory data register (MDR)
(D) Program counter register
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Answer: Answer: (B)
EPISODE-278-2812 .- Which register holds the address of a memory location?
(A) Memory data register
(B) Memory address register
(C) Status register
(D) Stack address
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Answer: Answer: (B)
EPISODE-278-2813 .- Which register shows the results of arithmetic and logical operations such as carry, overflow, negative?
(A) Stack register
(B) Status register
(C) Memory data register
(D) Memory buffer
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Answer: Answer: (B)
EPISODE-278-2814 .- Which of the following register holds a data value that is being stored to or retrieved from the memory location?
(A) PSW
(B) Main memory
(C) Memory data register
(D) Cache register
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Answer: Answer: (C)
EPISODE-278-2815 .- A device that allows entering data and instruction into a computer system is called
(A) interaction
(B) terminal
(C) communication
(D) input
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Answer: Answer: (D)
EPISODE-278-2816 .- Computer gets the input with the help of
(A) mouse and keyboard
(B) joystick
(C) printer
(D) both a and b
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Answer: Answer: (D)
EPISODE-278-2817 .- Which of the following are not input devices?
(A) Keyboard, trackball, light pen
(B) Barcode reader, OMR, OCR, MICR
(C) Biometric sensor, scanner, Mic
(D) Plotter, projector, headphones
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Answer: Answer: (D)
EPISODE-278-2818 .- Which device is mostly used to enter data or information in a computer system?
(A) Touch screen
(B) mouse
(C) light pen
(D) keyboard
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Answer: Answer: (D)
EPISODE-278-2819 .- Which of the following are examples of pointing devices?
(A) Mouse, trackball
(B) joystick, light pen
(C) touch screen
(D) All
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Answer: Answer: (D)
EPISODE-278-2820 .- Which of the following is not a type of mouse?
(A) Wireless mouse
(B) Optical mouse
(C) Mechanical mouse
(D) Electromechanical mouse
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Answer: Answer: (D)
EPISODE-278-2821 .- Which of the keys are also known as modifier keys?
(A) Shift
(B) Ctrl
(C) Alt
(D) All the above
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Answer: Answer: (D)
EPISODE-278-2822 .- Which keys are also known as toggle keys?
(A) Caps lock, Num lock
(B) Control key, Enter key
(C) Shift, Esc
(D) Both a and b
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Answer: Answer: (A)
EPISODE-278-2823 .- Which key is used to indent a paragraph?
(A) Spacebar
(B) Tab
(C) Shift
(D) None
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Answer: Answer: (B)
EPISODE-278-2824 .- Which key is used to open the Start menu?
(A) Windows
(B) Alt
(C) Ctrl + Alt
(D) None of these
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Answer: Answer: (A)
EPISODE-278-2825 .- Which key is used to erase data from the computer’s memory and characters on the screen?
(A) Backspace
(B) Delete
(C) Shift + Alt
(D) Both a and b
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Answer: Answer: (B)
EPISODE-278-2826 .- The first computer architecture was designed in
(A) 1970
(B) 1985
(C) 1968
(D) 1975
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Answer: Answer: (A)
EPISODE-278-2827 .- Which bus is used to connect external devices?
(A) Address
(B) Data
(C) Control
(D) External
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Answer: Answer: (D)
EPISODE-278-2828 .- Which of the following is not an integral part of the computer system?
(A) CPU
(B) Mouse
(C) Monitor
(D) UPS
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Answer: Answer: (D)
EPISODE-278-2829 .- Which of the following device provides surge protection and battery backup power during a power outage?
(A) Battery strip
(B) Surge strip
(C) UPS
(D) USB
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Answer: Answer: (C)
EPISODE-278-2830 .- Which of the following is a temporary storage location attached to CPU for input and output operations?
(A) Memory chip
(B) Register
(C) Buffer
(D) Core
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Answer: Answer: (C)
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