Match List I with List II

Devices	Example
A. Input devices	I. Radio frequency identification readers
B. Direct data entry	II. Joysticks
C. Output devices	III. DVD
D. Data backup	IV. Speakers

Correct option is B

Introduction:
In computer systems, hardware devices are categorized based on their function—input, output, storage, and processing. Each type plays a crucial role in enabling interaction between the user and the system, ensuring seamless data flow and functionality.

Information Booster:
A. Input devices → Joysticks (II):
Input devices are tools that allow users to send data to a computer. A joystick is a manual input device typically used for gaming or controlling simulations.
B. Direct data entry → RFID Readers (I):
Devices like RFID (Radio Frequency Identification) readers enable automatic data capture directly into the system, often used in inventory tracking and access control systems.
C. Output devices → Speakers (IV):
Output devices receive data from the computer and present it in a usable form. Speakers are audio output devices that convert digital audio signals into sound.
D. Data backup → DVD (III):
DVDs (Digital Versatile Discs) are optical storage devices used for backing up data or media. Though less common now, they were once widely used for storing files securely.

Additional Knowledge:
Other input devices include keyboards, scanners, and webcams.
Direct data entry devices also include bar code readers and biometric systems.
Common output devices include monitors (visual), printers (hardcopy), and projectors.
Modern backup solutions include external hard drives, SSDs, and cloud storage, which have mostly replaced DVDs.