Input and Display Devices Quiz

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Questions and Answers

Which feature is common to both optical and laser mice?

They use batteries to operate.

They require a mouse pad for accurate tracking.

They connect wirelessly to the computer.

They track movement using a light source. (correct)

What is the primary function of the navigation keypad on a keyboard?

To type special characters and symbols.

To move the insertion point. (correct)

To operate the computer's internal settings.

To initiate various software applications.

What is a significant disadvantage of solid-state storage systems compared to magnetic storage?

They have lower read and write speeds.

They are generally more durable and resistant to physical shock.

They are typically more expensive per gigabyte. (correct)

They require external power to function.

What type of device is primarily used to input letters and numbers into a computer?

Keyboard Signup and view all the answers

Which option describes a key feature of optical storage devices?

They are unaffected by magnetic fields. Signup and view all the answers

What is the primary function of an ink-jet printer?

Sprays ink onto paper for printing. Signup and view all the answers

Which of the following describes printer resolution?

The measure of the quality of printed output. Signup and view all the answers

What is a key feature of a duplex printer?

It prints on both sides of the paper. Signup and view all the answers

Which type of printer is capable of producing professional-quality images?

Photo printer. Signup and view all the answers

What are the two main components of a data storage system?

Storage device and storage medium. Signup and view all the answers

Which device is considered a type of touch-sensitive input device?

Touchpad Signup and view all the answers

What characteristic defines a graphics card?

Contains circuitry that displays images Signup and view all the answers

Which resolution format was a standard for early television and PC screens?

4:3 Signup and view all the answers

How is screen size typically measured?

Diagonally in inches Signup and view all the answers

What does the term 'pixel' refer to in digital imaging?

The smallest unit in a graphic image Signup and view all the answers

Which of the following is not typically classified as an input device?

Monitor Signup and view all the answers

What technology does an LED monitor primarily use for display?

Light emitting diodes Signup and view all the answers

What does the term 'response rate' refer to in display devices?

Speed at which screens update displays Signup and view all the answers

Which type of storage device does NOT have moving parts?

Solid-state drive (SSD) Signup and view all the answers

What unit is commonly used to measure storage capacity?

Gigabytes (GB) Signup and view all the answers

Which of the following describes magnetic storage?

Involves magnetizing particles on a disk or tape surface Signup and view all the answers

Which of the following storage devices is primarily used for data retrieval from physical discs?

Optical drive Signup and view all the answers

What is the average time to locate and read data on a storage medium called?

Access time Signup and view all the answers

Which type of storage technology is known for nonvolatile data storage?

Solid-state storage Signup and view all the answers

Which of the following best defines data transfer rate?

The amount of data moved from storage per second Signup and view all the answers

Solid-state card readers are commonly used in which type of device?

Smartphones Signup and view all the answers

Study Notes

Input Devices

Keyboard is an input device used to type letters and numbers, the navigation keypad is used for moving the insertion point.
Mouse is an input device used to control the on-screen pointer; optical mouse uses an LED to track mouse movement while laser mouse uses a laser as the light source.
Touchpad is a touch-sensitive surface.
Trackball is a roller ball on the top of a mouse.
Touch Screen is an input device that allows you to interact with a device by touching the screen directly. It's used in smartphones, tablets, and some computers.
Virtual keyboards are a software-based alternative to physical keyboards.
Scanners are used to create digital versions of physical documents.
Microphones are used to input audio signals.
Digital cameras are input devices used to capture still images and videos.

Display Devices

Monitors are standalone display devices that are found with desktop computers.
Screen is the area that displays the output, Monitors attached to desktop computers have screens as well as Notebook, netbook, tablet, smartphone and other mobile devices.
LCD (Liquid Crystal Display) uses a layer of liquid crystal cells to manipulate light.
LED (Light Emitting Diodes) uses light emitting diodes for backlighting.
Graphics card contains circuitry that displays images and special memory to store images as they are processed before display.
Response rate is the speed at which screens update displays.
Resolution is the maximum number of displayed horizontal and vertical pixels.
Pixel (picture element) is the smallest unit in a graphic image which fills one cell of the grid.
Screen size is measured diagonally in inches.
Aspect ratio is the proportional relation between width and height. Most of the older devices have 4:3 aspect ratio, while the modern devices have 16:9 aspect ratio which is designed for widescreen devices like notebooks and smartphones.

Printers

Hard copy is printed output.
Soft copy is the output that can be viewed through a display device.
Ink-jet printer sprays ink onto paper.
Laser printer uses toner cartridges to produce dots of light onto light-sensitive drums.
Printer resolution determines the quality of printed output and is measured in dots per inch (dpi).
Printer speed is measured in pages per minute (ppm).
Duplex printer prints on both sides of the paper
Network enabled printers are connected directly to a network (wired or wireless).
Photo printer produces professional-quality images on specialized papers.
3D printer prints 3D objects.

Data Storage - An Overview

Data storage system has two primary parts: a storage device and a storage medium.
Storage device equipment that stores and retrieves data from the storage medium.
Storage medium technology that holds data.
Hard drives are the main storage system for personal computers, they can be internal or external, either mechanical or solid state drives (SSD). Mechanical drives have moving parts whereas solid state drives have no moving parts.
USB flash drives are portable storage devices that use flash memory.
CD/DVD/BD drives use optical discs for storage.
Solid state card readers are used to read and write data on memory cards.

Data Storage Systems Features

Storage capacity is the maximum amount of data that can be stored.
Access time is the time taken to locate and read data from the storage medium.
Data transfer rate is the amount of data moved from the storage medium per second.
Magnetic storage stores data by magnetizing microscopic particles on the disk or tape.
Optical storage stores data as microscopic light and dark spots on the disc surface.
Solid-state storage stores data in a nonvolatile, erasable, low-power chip.

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Description

Test your knowledge on various input and display devices. This quiz covers keyboards, mice, touchscreens, monitors, and more, providing insights into how these technologies operate. Perfect for students learning about computer hardware.