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WorksheetsComputer Components and Input/Output Devices and Bit Patterns an
Total questions: 38
Worksheet time: 19mins
What is the main function of the Input Unit in a computer?
To execute instructions
To display information
To enter data into the computer
To store data
Which of the following is NOT a manual input device?
Keyboard
Touchscreen
Barcode Reader
Mouse
What type of input device is a barcode reader?
Storage device
Output device
Automatic input device
Manual input device
Which of the following is an advantage of using a barcode reader?
Requires no special training
Can code letters and symbols
Reads quickly and accurately
Can read handwritten notes
What does MICR stand for?
Magnetic Ink Character Recognition
Manual Input Character Reader
Magnetic Input Control Reader
Memory Ink Character Recognition
Which unit of the CPU is responsible for executing instructions?
Input Unit
Arithmetic Logic Unit
Control Unit
Memory Unit
What is the smallest storage unit in a computer?
Byte
Kilobyte
Bit
Megabyte
Which type of memory is RAM classified as?
External memory
Primary memory
Secondary memory
Permanent memory
What is the main purpose of the Output Unit?
To store data
To process data
To display or send out information
To input data
Which of the following is an example of an output device?
Monitor
Barcode Reader
Keyboard
Scanner
What is a disadvantage of CRT monitors?
No color display
Expensive to produce
Low resolution
Heavy and bulky
Which type of printer is known for producing high-quality output quickly?
Ink-jet printer
3D printer
Dot-matrix printer
Laser printer
What is a key feature of a 3D printer?
Only prints in black and white
Creates three-dimensional objects
Uses ink cartridges
Prints in two dimensions
Which of the following is a disadvantage of using an ink-jet printer?
Expensive to maintain
Slow printing speed
Heavy and bulky
Cannot print in color
What does OMR stand for?
Online Mark Recognition
Optical Mark Reader
Optical Machine Reader
Optical Memory Reader
Which device is used to read marks made by a pencil or pen?
Optical Mark Recognition
Magnetic Stripe Reader
Optical Character Recognition
Barcode Reader
What is the main function of the Arithmetic Logic Unit (ALU)?
Control data flow
Perform arithmetic and logical operations
Read input from devices
Store data
Which of the following is NOT a type of secondary memory?
USB Drive
RAM
Optical Drive
External Hard Drive
What is a disadvantage of using a dot-matrix printer?
Can produce color prints
Fast printing speed
High-quality output
Noisy operation
Which of the following is a characteristic of a liquid crystal display (LCD)?
Requires high power
Only displays in black and white
Uses liquid crystals to display images
Heavy and bulky
What is the primary use of a graphic tablet?
To input text
To store data
To create digital drawings
To print documents
Which of the following is an advantage of using a multimedia projector?
Limited viewing area
Only for personal use
Can display data directly from a computer
Requires special screens
What is the binary code used for?
How many bits are there in one byte?
8 bits
16 bits
32 bits
4 bits
What does 1 Kilobyte equal to in Bytes?
What type of memory is volatile?
Which of the following is NOT a type of backing storage device?
What is a disadvantage of fixed hard disks?
What is the primary use of a portable hard disk?
What is a characteristic of floppy disks?
What does CD-ROM stand for?
Which storage medium is known for its high storage capacity?
What is a disadvantage of solid-state drives?
What is the primary use of a memory stick?
What is a key feature of optical storage media?
What is the main advantage of using a DVD-ROM?
What is the main purpose of backing storage devices?
Which of the following is a characteristic of magnetic storage media?
