In computer, data transfer speed is measured by: 

The correct answer is Bits per second.

Key Points

• Data transfer speed in computers is measured in bits per second (bps), which indicates the number of bits transmitted per second.
• A higher bps rate signifies a faster data transfer speed, which is crucial for efficient network and internet communications.
• Commonly used multiples are kilobits per second (Kbps), megabits per second (Mbps), and gigabits per second (Gbps).
• The International System of Units (SI) defines these multiples: 1 Kbps = 1,000 bps, 1 Mbps = 1,000,000 bps, and 1 Gbps = 1,000,000,000 bps.

Additional Information

• Byte vs. Bit
  • A byte consists of 8 bits. Data transfer rates can also be measured in bytes per second (Bps), with higher multiples like KBps, MBps, and GBps.
  • 1 Byte per second (Bps) = 8 bits per second (bps).
• Bandwidth
  • Bandwidth refers to the maximum rate of data transfer across a given path, and is typically measured in bits per second (bps).
  • Higher bandwidth indicates more data can be transferred in a given amount of time.
• Latency
  • Latency is the time it takes for a data packet to travel from one point to another in a network.
  • Lower latency is critical for real-time applications such as video conferencing and online gaming.
• Throughput
  • Throughput is the actual rate at which data is successfully transferred over a network.
  • It is usually lower than the bandwidth due to various factors like network congestion and protocol overheads.