n8n is a node-based workflow automation platform that connects apps, APIs and AI models and can be self-hosted or used as a…
NACS, the North American Charging Standard, is a compact EV connector for AC and DC charging, developed by Tesla and standardized as…
Named entity recognition (NER) is the language AI task of finding names of people, organizations, places and similar items in text and…
NAND flash is non-volatile memory that stores data as trapped charge in dense cell strings, forming the storage medium of SSDs, phones…
NAP in local SEO stands for a business's name, address and phone number, whose consistency across the web helps search engines verify…
Narrow AI, also called weak AI, is artificial intelligence built to perform a specific task or bounded set of tasks rather than…
A NAS, or network-attached storage, is a dedicated storage server that shares files over a network using protocols such as SMB and…
NAT (network address translation) rewrites IP addresses and ports as packets cross a router, letting many private hosts share one public address.
A native application is software built for one specific platform with its own SDK and UI toolkit, giving full access to device…
NDI is a video-over-IP protocol for streaming and broadcasting that sends live video, audio and control between devices on a standard local…
NDJSON is a data format that stores one complete JSON value per line, so large datasets and streams can be written and…
Negative space in photographic composition is the empty area around the subject that isolates it, guides the eye and sets the mood…
Nested virtualization runs a hypervisor inside a virtual machine, letting a guest create its own VMs for labs, CI pipelines, emulators and…
Net neutrality is the principle that internet access providers must treat all lawful traffic equally, without blocking, throttling or paid priority.
NetFlow is a flow-export protocol in which routers and switches summarize traffic into records showing who talked to whom, how much and…
Netplan is a Linux network configuration utility that turns declarative YAML files into settings for systemd-networkd or NetworkManager, standard on Ubuntu.
A network ACL is an ordered list of permit and deny rules that filters packets on an interface or subnet boundary by…
Network congestion is the state in which traffic demand exceeds the capacity of a link or cell, causing queuing delay, packet loss…
Network segmentation divides a network into isolated zones with controlled traffic between them, limiting how far an attacker or fault can spread.
Network slicing in 5G networks divides one shared physical network into isolated logical networks, each tuned for a specific service, customer or…
A network switch forwards Ethernet frames between devices in a LAN, learning MAC addresses so each frame reaches only its intended port.
Network topology is the arrangement of nodes and links in a computer network, described physically by cabling and logically by how data…
NetworkManager is the Linux networking daemon that configures wired, wireless, VPN and mobile connections automatically from stored connection profiles.
A neural network is a machine learning model built from layers of weighted units that learns to map inputs to outputs by…
A neuron in a neural network is a computing unit that sums weighted inputs, adds a bias and applies an activation function…
A newsletter in email marketing is a recurring email publication sent on a regular schedule to opted-in subscribers to inform, engage and…
NFC is a short-range wireless connectivity standard at 13.56 MHz that links devices within a few centimeters for payments, access cards and…
An NFT, or non-fungible token, is a unique blockchain token with its own identifier that records ownership of a specific digital or…
nftables is the Linux kernel packet classification framework and nft tool that replaced iptables for firewall filtering, NAT and packet mangling.
Nginx is an event-driven open-source web server and reverse proxy that serves static files, terminates TLS and balances traffic to application servers.
Nice is the Linux process attribute and command that adjusts how much CPU time the scheduler gives a process, from -20 (favored)…
NIS2 is the EU directive that requires essential and important entities to manage cybersecurity risks, report significant incidents and accept supervision.
The NIST CSF is a voluntary cybersecurity framework that organizes security outcomes into six functions to help organizations assess and manage cyber…
NLP, or natural language processing, is the field of AI that enables computers to analyze, interpret and generate human language in text…
Node-RED is an open-source, flow-based automation platform built on Node.js that wires devices, APIs and services together in a browser-based visual editor.
Nofollow is a link attribute value that tells search engines a page does not vouch for the linked URL, limiting how much…
Noindex is a robots directive that tells search engines not to include a crawled page in their index, keeping it out of…
The noise floor in audio recording is the level of background noise a signal chain produces with no input, setting the quietest…
A noise gate is a mixing processor that mutes or attenuates an audio signal whenever its level falls below a set threshold,…
Noise reduction in image processing removes random grain and color speckles from a photograph while trying to preserve real detail, edges and…
A non-clustered index is a separate sorted structure of key values and row pointers that speeds up lookups without changing table row…
Non-linear editing is a video editing method that gives random access to any frame and changes the edit without altering or recopying…
Normalization is the data modeling process of splitting relational tables so each fact is stored once, removing redundancy and update anomalies.
A north star metric is the single measure that best captures the value customers get from a product and predicts its long-term,…
NoSQL is the family of non-relational database models, such as document, key-value, wide-column and graph stores, built for flexible schemas and scale-out.
NPS, the Net Promoter Score, is a market research metric of customer loyalty based on how likely customers are to recommend a…
NS is the DNS record type that names the authoritative name servers for a zone and delegates a domain from its parent…
NTFS is the journaling file system of Windows that organizes disk storage with a master file table, permissions, compression and encryption.
NVMe is the storage protocol that lets SSDs talk to the processor directly over PCIe, using many deep queues for high throughput…
The Nyquist frequency is half the sample rate of a digital audio system and marks the highest frequency it can represent without…