Which of the following key should be pressed to move to the beginning of a line of text?
1.Page up
2.Shift
3.Home
4.Enter
Which register shows the results of arithmetic and logical operations such as carry, overflow, negative?
1.Stack register
2.Status register
3.Memory data register
4.Memory buffer
Which register shows the results of arithmetic and logical operations such as carry, overflow, negative?
1.Stack register
2.Status register
3.Memory data register
4.Memory buffer
A joystick is primarily used for which purpose?
1.controlling sound on the screen
2. computer gaming
3.enter text
4.draw pictures
A motherboard consists of
1.CPU
2.RAM and BIOS chip
3.Expansion slots
4.All the above
Any physical components of a computer system that we can see and touch is
1. Software
2.Peripheral device
3.hardware
4.CPU
Central Processing Unit in a computer consists of which major components?
1.Arithmetic logic unit (ALU) and Control Unit
2.Control Unit (CU)
3.Registers
4.ALU, Control Unit, and Registers
Computer gets the input with the help of
1.mouse and keyboard
2.joystick
3.printer
4.Both a and b
CPU is fabricated on a single integrated circuit board that is known as
1.Motherboard
2.Microprocessor
3.CU
4.ALU
Data moves in and out of the CPU through embedded wires called
1.Bus
2.Electronic wires
3.Lines
4.Cables
Internal memory of central processing unit is nothing but
1.a set of registers
2.a set of ALU and CU
3.buses
4.None
Optical Character Recognition is used for the preparation of
1.electricity bills
2.insurance premium
3.telephone bills
4.All of these
The main task of the central processing unit is to
1.carry out program instruction
2.carry out program instruction
3. process data and information
4.Both a and c
The microprocessor consists of millions of
1.registers
2.microchips
3.transistors
4.semiconductors
The microprocessor of a computer system
1. understand machine language and low-level language
2.understand machine language and high-level language
3.understand only machine language
4.understand only assembly language
The most common buses inside the microcomputer are
1.Address bus
2.Address bus and Data bus
3.Address bus and Control bus
4.Address bus, Data bus, and Control bus
The read and write operations in the computer is carried out through
1.data bus
2.address bus
3.control bus
4.All of these
The system unit that contains the most vital part of the personal computer is called
1.CPU
2.BIOS chip
3.Motherboard
4.Monitor
What is the full form of MICR?
1.Magnetic Ink Character Register
2.Magnetic Ink Code Reader
3.Magnetic Ink Code Register (d)
4.Magnetic Ink Code Recognition
What kind of device is a computer mouse?
1.Input
2.Output
3.Pointing device
4.Both a and c
Which among the following is the fastest memory in a computer that holds information?
1. Register
2.Cache
3.Main memory
4.RAM
Which bus is used to carry data to and from the memory?
1.Address bus hese
2.Data bus
3.Control bus
4.None of the these
Which button is known as a middle button used as the third mouse button?
1. Right button
2.Left button
3.Scroll wheel
4.None of the these
Which device is mostly used to enter data or information in a computer system?
1.Touch screen
2.mouse
3.light pen
4.keyboard
Which input device is mainly used to detect marks on paper?
1.Barcode reader
2.OMR
3.OCR
4.MICR
Which input device is used in banks for processing cheques to recognize the magnetic encoding numbers printed at the bottom of a cheque?
1. OCR
2.MICR
3.OMR
4.All of these
Which input device is used to recognize the physical or behavioral traits of the individual?
1.Smart card
2.MICR
3.Bar code
4.Biometric sensor
Which input device is widely used for acquiring textual data from images?
1.MICR
2.OCR
3.Scanner
4.Sensor
Which input device moves in all directions, controls the movement of the cursor, and continues moving in the previously pointing direction?
1.Mouse
2.Trackball
3.Joystick
4.Both a and c
Which key is used to launch the Start button?
1.Esc
2.Shift
3.Windows
4.Shortcut
Which memory is used for storing data and program instructions currently being executed by CPU?
1.Mass memory
2.Auxiliary memory
3.Internal memory
4.Non-volatile memory
Which memory unit communicates directly with the CPU?
1.Main memory
2.Register
3.Secondary memory
4.Auxiliary memory
Which of the following are not input devices?
1.Keyboard, trackball, light pen
2.Barcode reader, OMR, OCR, MICR
3.Biometric sensor, scanner, Mic
4.Plotter, projector, headphones
Which of the following are the predominant manufacturers for desktop and laptop processors?
1. Intel
2.AMD (Advanced Micro Devices)
3.Motorola
4.Both a and b
Which of the following component of CPU controls input/output devices, generate control signals to the other components of the computer such as read and write signals, and performs the execution of instruction?
1.ALU
2.Accumulator
3.Control Unit
4.Both a and c
Which of the following component of CPU performs arithmetic operations such as addition, subtraction, division, and multiplication and logic operations such as AND, OR, and NOT?
1.CU
2.ALU
3.Both a and b
4.Register
Which of the following component of CPU performs arithmetic operations such as addition, subtraction, division, and multiplication and logic operations such as AND, OR, and NOT?
1.CU
2.ALU
3.Both a and b
4.Register
Which of the following components remains on the motherboard?
1.CMOS battery
2.PCI slot
3.Case fan
4.All of these
Which of the following input device is a handheld electro-optical pointing device that is used for making drawings, graphics, and for menu selection?
1.Light pen
2.Touch screen
3.Trackball
4.Joystick
Which of the following input device is used for marking attendance of employees/students in organizations/institutions and security purposes?
1.OCR
2.Webcam
3.Biometric sensor
4.Both a and c
Which of the following invented the first microprocessor?
1.Vint Cerf
2.Terence Percival
3.John Mauchly
4.Ted Hoff
Which of the following is considered as the brain of the computer?
1. Motherboard
2.RAM
3.CPU
4.BIOS chip
Which of the following is not hardware?
1.Processor chip
2.Printer
3.Mouse
4.Java
Which of the following is primarily responsible for converting input (data) into meaningful output (information)?
1.RAM
2.CPU
3.Storage device
4.Input and Output device
Which of the following is temporary storage used to hold data that is used for arithmetic and logical operations and storing its results?
1.ALU
2.PC (Program counter)
3.Accumulator
4.IR (Instruction Register)
Which of the following is/are the type of smart card reader?
1. Memory card reader
2.Microprocessor card
3.Both a and b
4.None of these
Which of the following unit helps to establish the communication between memory and ALU in the computer?
1.CMU
2.CCU
3.CPU
4.None
Which register holds the actual instruction being executed currently by the computer?
1.Memory address register (MIR)
2.Instruction register (IR)
3.Memory data register (MDR)
4.Program counter register
Which register holds the address of a memory location?
1.Memory data register
2.Memory address register
3.Status register
4.Stack address
Which register holds the address of the current instruction being executed?
1.Instruction register
2. Memory data register (MDR)
3.Stack register
4.Program counter