Structure of a Data Packet The structure of a packet depends on the type of packet and protocol. A packet has a header and a payload. The header keeps overhead information about the packet, the service, and other transmission-related data. For example, data transferred over the internet requires breaking down the data into IP packets, which is defined in IP (internet protocol). An IP packet includes: The source IP address: The IP address of the machine sending the data....

Apple has given special care to those with seeing, hearing, and motor skill differences to ensure everyone has the power to send a message, get directions, take and send a selfie, and engage in a live interactive phone call. This guide will let you know what’s possible with iPhone accessibility options and how they work. Once you’ve found an option you want to activate, slide the toggle button on the right-hand side to turn the option on....

80’s movies promised a lot of cool future tech that hasn’t appeared. We’re not riding on hoverboards, nor do our cars fly. The one thing we did get is inexpensive and simple video calling. The Docooler USB 2.0 12 Megapixel promises to make that a reality with an HD camera for the lowest cost in its class. Can this dirt-cheap camera deliver on its promise to connect us in HD?...

Products That Feature Dolby Atmos Since its introduction in 2014, most mid-range and high-end home theater receivers include Dolby Atmos decoding. Dolby Atmos is also available on select soundbars from Creative Labs, Integra, LG, Onkyo, Pioneer, Samsung, Sony, Yamaha, and Vizio. LG also includes a built-in Dolby Atmos soundbar with select OLED TVs. Although not quite the same experience as having a multi-speaker Dolby Atmos speaker setup, a Dolby Atmos soundbar brings a taste of its benefits to more consumers....

Because it’s so easy to use and free from the clutter that similar programs have, there are also some features you won’t find in this tool. How to Use DriverPack There are two ways to run this program: Regular Mode By default, after opening the setup file, DriverPack will run in “regular mode” where everything happens for you: your computer is prepared and the drivers you need are downloaded and installed for you....

iOS 15.2 is upon us, bringing several new features with it, including one that will let you erase and reset your locked iOS device directly from the lock screen. Previously, resetting a locked iPhone or iPad would require putting it into DFU mode and connecting it to a Mac or PC to complete the process. Now, so long as the device is connected to a cellular or Wi-Fi network, you can perform a reset directly....

Google’s annual conference often brings news of updates and big feature changes for some of Google’s biggest platforms, and this year is no different. From advances made in AI and quantum computing, to changes to how you interact with search and your online passwords, Google had a lot to talk about during the opening keynote for Google I/O 2021. Google Maps Updates Eco-Friendly Routes and Safer Routing are two new features arriving in Google Maps later this year....

It’s more than just a way to augment the on-board speakers on your TV, though. A soundbar can be an integral part of a 5.1 or 7.1 system acting as the main, center channel, so making sure the soundbar you buy fits in with your system is paramount. Beyond that, many brands offer cutting edge features like automatic room tuning, smartphone apps to control and expand your system’s functionality, and speaker technology that fills rooms using directional cones and ports....

When Was the Fitbit Charge 5 Released? Google announced the Fitbit Charge 5 on August 25, 2021. You can order the 2021 Fitbit Charge from Fitbit.com. For reference, the first three Charge devices came out about every two years: November 2014, September 2016, and then October 2018. The 4th iteration was released in March 2020. Fitbit Charge 5 Price Fitbit released past Charge devices at $149.99, but this one is $179....

Cities are terrible places for autonomous cars. They’re full of unpredictable humans on bikes, on foot, and in regular cars. If you wanted to custom-design an environment that made it hard for a computer to navigate safely, you’d end up with a modern city. And—in European cities at least—even human-driven cars are on the way out. But there is a place for autonomous vehicles—on freeways, in fields, and generally away from fragile humans....

FPO images are commonly used when you’ve been supplied actual photographic prints or another type of artwork to be scanned or photographed for inclusion. With modern publishing software and digital photography, FPO is a term that is mainly historical in nature; it’s rarely used in everyday practice anymore. Uses for FPO Before the days of fast processors, FPO images were used during the design stages of a document to speed up the process of working with the files during various drafts of a document....

Gigabyte’s next set of graphics cards—the GeForce RTX 4080 series—is almost here and offers a fair number of performance and cosmetic options. The trick is figuring out which one suits your needs most. Performance-heavy games can lead to heat build-up, which is why Gigabyte developed the Aorus Extreme Waterforce in both water block and all-in-one cooling models. It’s a similar story for the Aorus Master, Gaming OC, Aero OC, and Eagle OC, which all use a Windforce cooling system to keep your hardware from burning up....

A new post on the official blog page explains that Chrome recently has received a handful of performance adjustments. These improvements address Chrome’s speed, memory usage, and that thing it likes to do where it slows or hangs when you try to shut down. Faster searching comes by way of Chrome’s Omnibox (i.e., the address bar), which auto-suggests your search term while you’re typing it. Now, in addition to attempting to autocomplete your search queries, it attempts to pre-fetch search results based on how likely they are to be selected....

Apple’s iMessage app is the only major messaging platform that supports SMS, a quirk that dates back to the original iPhone, which combined SMS and iPhone-to-iPhone messages into the same app. This extra ability has caused problems over the years, most recently with complaints that Apple should stop ostracizing “green-bubble” contacts by excluding them from some features. Now, Google’s Messages app will do what Apple won’t and translate iMessage tapbacks into emojis....

Overall Findings Android TV and Google TV are excellent operating systems for smart TVs and Chromecast streaming devices. Google TV is the newer of the two and has several improvements, but it’s not as different from Android TV as you may think. Both operating systems are Android-based, with Google TV working more like an Android TV update with a rebrand than a complete reinvention. Switching from an Android TV device to one running Google TV is more akin to upgrading from an old Android smartphone to a newer Android model rather than jumping from an Apple iPad to something completely different like a Windows tablet....

Group and Ungroup Conversation Threads in Windows Mail Arrange messages in conversations in Windows Mail or turn the feature off, if desired. Group Conversation Threads in Outlook In Microsoft Outlook, the settings for conversations are on the View tab. Change Conversation Options Outlook allows you to change several other conversation options, as well. These are available from the View tab. Show Messages from Other Folders displays messages in the conversation that you have moved to other folders, including messages in your Sent Items folder....

It used to be that Facebook made all photos and posts public by default, meaning anyone could see them. Facebook’s privacy settings now give users more granular control over who can see what, but they can also be a bit difficult to figure out. Basic Tutorial on Keeping Facebook Photos Private For Facebook photos, you always have the option to make sure only your friends can view them via the inline privacy button or “audience selector” tool in the post creation box....

Researchers at Germany’s Technical University of Darmstadt have found that iPhones can be vulnerable to security threats even when powered off. Wireless chips, including Bluetooth, run using low power mode when the power is off. Malicious actors can take advantage of the reduced power mode to use malware. “When a user shuts down their device through the phone’s menu or power button, they have a reasonable belief that all the processors are shut down, but that’s not the case,” Eugene Kolodenker, a senior staff security intelligence engineer at the cybersecurity firm Lookout, which was not involved in the German study, told Lifewire in an email interview....

Install DD-WRT on routers using the firmware upgrade (also called firmware flashing) process. Routers contain a small fixed amount of persistent flash memory — usually 4 megabytes, 8 MB or 16 MB in size — where the firmware is stored. Like other kinds of router firmware, DD-WRT firmware exists in the form of a binary file. Why Use Alternative Firmware Routers do not require DD-WRT firmware for standard operation. However, many networking enthusiasts install it in place of the manufacturer’s firmware with the goal of extracting better performance or capability from their routers....

It works by encrypting a digital signal with a key that requires authentication from both the transmitting and receiving products. If authentication fails, the signal fails. Purpose of HDCP The Digital Content Protection LLC, the Intel subsidiary organization that licenses HDCP, describes its purpose as to license technologies to protect high-value digital movies, TV shows, and audio from unauthorized access or copying. The use of HDCP-compliant cables and devices to transmit HDCP-encoded data, in theory, is designed to prohibit the duplication or re-recording of encrypted media by unauthorized devices....