Question
Download Solution PDFWhich of the following is both an input and output device?
This question was previously asked in
JK High Court Junior Assistant Official Paper (Held On: 29 Apr, 2024)
Answer (Detailed Solution Below)
Option 2 : Modem
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ST 1 :General English
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Detailed Solution
Download Solution PDFThe correct answer is Modem.
Key Points
- A modem, which stands for Modulator-Demodulator, is a hardware device that converts data between analog and digital formats.
- It serves as both an input and output device by receiving data from the internet (input) and sending data to the internet (output).
- Modems are essential for connecting computers to the internet via telephone lines, cable systems, or satellite links.
- They facilitate communication between different networks, enabling the transmission of data over long distances.
Additional Information
- Modem Types
- Dial-up Modem: Uses telephone lines to connect to the internet; provides slow data transfer speeds.
- DSL Modem: Digital Subscriber Line modems use telephone lines but offer higher speeds than dial-up.
- Cable Modem: Connects to the internet through cable television lines and offers high-speed data transfer.
- Fiber Optic Modem: Uses fiber optic cables for extremely high-speed internet connections.
- Modulation and Demodulation
- Modulation: The process of converting digital signals into analog signals for transmission over telephone or cable lines.
- Demodulation: The process of converting received analog signals back into digital signals.
- Router vs Modem
- Modem: Connects directly to the internet and translates data between the internet and a local network.
- Router: Distributes the internet connection from the modem to multiple devices in a local network.
- Modem-Router Combo: A single device that performs the functions of both a modem and a router.
- Network Standards
- ITU-T: International Telecommunication Union Telecommunication Standardization Sector, responsible for standardizing modem technology.
- IEEE: Institute of Electrical and Electronics Engineers, responsible for network standards such as Ethernet and Wi-Fi.
Last updated on Mar 11, 2025
-> The JK High Court Junior Assistant Hall Ticket has been out on the official portal on 7th March 2025.
-> The JK High Court Junior Assistant Notification 2024 has been released for 207 vacancies.
-> Candidates holding a Graduation in any discipline are eligible to apply for the post.
-> The selection process involves a Written Examination & Document Verification.