What does NED mean in HARDWARE

NED stands for No Error Detection. It is typically used to signify purposefully leaving out detection and correction of errors occurring during communications or computing operations.

The reasons for not detecting errors can vary. In some cases, the overhead associated with error detection could be too high in terms of time or resources required, resulting in more cost-effective solutions without error detection. In others, data loss may be better tolerated than incorrect data due to the nature of the application a system is involved with, such as streaming media where partial corruption might be less noticeable than synchronization problems resulting from dropped frames.

When no error detection is employed, there may be a higher risk of bit level errors (e.g., single binary digits being changed) that go undetected, leading to incorrect results from computations or improperly received messages due to corrupted data values. Thus, while data transfer rate can increase when no error detection is employed, this result should be weighed against the potential consequences if errors occur during transmission or computation steps.

Yes, the primary drawback to using no error detection is the potential for severe data corruption and incorrect results due to mistakes that are never corrected during transit or processing operations. Additionally, having no feedback on whether data was correctly transferred can lead to difficulties in troubleshooting communication issues or debugging programs treated as black boxes by testers and other users.

Yes, indeed there are many alternatives depending on your needs and resources available for implementation such as checksums, cyclic redundancy checks (CRCs), parity bits and forward error correction (FEC). Many of these techniques employ minimal amounts of additional bandwidth and computational power while providing varying degrees of reliability by identifying detected errors prior to retransmission attempts or recomputation phases in a system's life cycle.