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Wired communication: Uses physical cables (e.g., copper wires, optical fibers) to transmit data. Wireless communication: Uses radio waves, microwaves, or infrared signals (e.g., Wi-Fi, mobile networks) for data transmission. Related Questions: What is the difference between data and information? Briefly explain the process of transfer of information via radio waves through air. What is the … Read more
Microwaves are used because they: Can travel long distances with minimal interference. Have high frequencies, allowing faster data transmission. Penetrate through the Earth’s atmosphere with less distortion. Related Questions: What is the difference between data and information? Briefly explain the process of transfer of information via radio waves through air. What is the difference between … Read more
Modulation is the process of modifying a carrier wave to encode information for transmission. It allows signals to travel longer distances with minimal loss. Examples include AM (Amplitude Modulation) and FM (Frequency Modulation). Related Questions: What is the difference between data and information? Briefly explain the process of transfer of information via radio waves through … Read more
Satellites receive signals from Earth, amplify them, and retransmit them to different locations. They enable long-distance communication, including TV broadcasting, GPS navigation, and internet services. Related Questions: What is the difference between data and information? Briefly explain the process of transfer of information via radio waves through air. What is the difference between primary and … Read more
Fiber optic cables offer: Faster data transmission at the speed of light. Higher bandwidth for more data transfer. Less signal loss over long distances. Immunity to electromagnetic interference. Related Questions: What is the difference between data and information? Briefly explain the process of transfer of information via radio waves through air. What is the difference … Read more
Data is stored on magnetic platters inside the hard disk. A read/write head moves over the spinning platters, magnetizing tiny regions to represent binary data (0s and 1s). Data in a hard disk drive (HDD) is stored magnetically on spinning disks called platters. Each platter is coated with a magnetic material. The hard disk uses … Read more
Answer: A telephone is a wired device that uses a landline network for communication, while a cellular phone is wireless, using mobile networks and radio signals to connect. The main difference is that a telephone (landline) is connected to a physical wired network, while a cellular phone (mobile phone) uses wireless signals to connect to … Read more
Hard disks use advanced magnetic storage technology with multiple platters, allowing them to store significantly more data than floppy disks or DVDs, which have limited physical space for data storage. The storage capacity of a hard disk is greater because it uses more advanced technology, such as higher-density platters and faster data access, compared to … Read more
Optical fiber has higher bandwidth, transmits data at the speed of light, has minimal signal loss, and is immune to electromagnetic interference, making it superior to electric wires. Related Questions: What is the difference between data and information? Briefly explain the process of transfer of information via radio waves through air. What is the difference … Read more
RAM (Random Access Memory): Temporary, volatile memory used for processing tasks. Data is lost when the power is off. ROM (Read-Only Memory): Permanent, non-volatile memory that stores essential instructions (e.g., BIOS). Data is not lost when the power is off. Related Questions: What is the difference between data and information? Briefly explain the process of … Read more