As of the end of 2019, there were 30 million Raspberry Pi computers sold. That makes it one of the most popular computers on the market even though most people have never heard of it.
If you’re thinking about getting yourself a Raspberry Pi you might wonder how to choose between the various generations. Let’s look at the current models of this versatile device as well as what to expect in the future.
What is a Raspberry Pi?
The Raspberry Pi is a single-board computer made by a UK charity called the Raspberry Pi Foundation. Their goal is to make it easier for people to learn about computers.
The Pi is the perfect platform for that learning because it’s inexpensive, powerful, and incredibly versatile. What you learn setting up a Pi applies to any type of computer system to some degree.
Generations of Raspberry Pi
The Raspberry Pi was originally released in 2012 and there have been several generations since then, some of which also had more than one model.
Like any type of computer, each new generation uses newer technology that’s faster and more efficient. But unlike most PCs, you don’t have to spend hundreds or even thousands of dollars every time you upgrade.
Pi Models A and B
The first generation Pi was the Raspberry Pi Model B, released in February 2012. It included 256MB of memory and used the ARM11 processor, a 700MHz, single-core CPU.
The Model A followed shortly after and was a simpler and less expensive version of the same Pi.
Pi Models A+ and B+
In 2014, the Pi Foundation released the Pi Models A+ and B+, which had the same basic features in an improved design. They also included twice the memory, with 512MB standard.
The Pi Models A+ and B+ are still available with the end-of-life date slated for 2026.
Pi 2 Model B
The Raspberry Pi 2 Model B was launched in February 2015. It featured a faster CPU, the 900MHz, quad-core ARM Cortex A7 processor. The RAM was once again doubled to 1GB.
Later versions of the Pi 2 Model B got an updated CPU, the 1.2GHz 64-bit ARM Cortex A53. That processor was also a quad-core chip.
The Pi 2 Model B is also still available and targeted to be discontinued in 2026.
The Raspberry Pi Zero launched in November 2015 as a very low-cost version — only $5. To get the price down, the Pi Zero was smaller and had fewer I/O channels.
An updated version, the Pi Zero W, followed in February 2017. It added Wi-Fi and Bluetooth wireless features to the basic Pi Zero. The price doubled to $10 but was still extremely affordable.
As with the previous couple of models, the Pi Zero and Zero W are still available with an end-of-life date in 2026.
Pi 3 Model B
The Pi 3 Model B launched in February 2016 with the same 1.2 GHz quad-core processor as the later versions of the Pi 2 Model B.
The Pi 3 Model B featured onboard 802.11n Wi-Fi and Bluetooth as standard options. It also added the ability to boot from a USB device such as a USB memory stick or external drive.
Pi 3 Model B+
The Pi 3 Model B+ launched in March 2018 and ran on a faster 1.4GHz processor. It also included a faster ethernet connection that ran three times faster than the previous version.
The Wi-Fi support on the Pi 3 Model B+ also saw a speed bump, moving to 802.11ac. It also supports Power over Ethernet (PoE), USB boot, and the option to boot from the network. This meant you no longer needed an SD card to boot the device.
Pi 4 Models A and B
The Raspberry Pi 4 is the latest generation of the Pi, with models A and B available. It launched in June 2019 with a faster 1.5GHz ARM Cortex A72 processor as well as built-in 802.11ac Wi-Fi, Bluetooth, full gigabit ethernet, and several USB ports (both 2.0 and 3.0 standards).
The Pi 4 also includes two micro HDMI connections that support monitors up to 4K resolution. The Pi 4 uses a USB-C port for power, which lets the Pi provide power to other connected peripherals if the power supply can provide enough juice.
The Raspberry Pi 400 launched in November 2020. It’s a slightly different style than all the generations that came before it. This model is built into a keyboard so all you need to do is connect it to a monitor and you’re ready to go.
It features an effective cooling system that takes its cues from the decades-old Commodore 64 computer. The enhanced cooling lets the CPU run a bit faster than a standard Pi 4, clocking in at 1.8GHz. Otherwise, the Pi 400 is essentially the same as a Pi 4 from a technical perspective.
The Raspberry Pi 5 hasn’t been officially announced but there are plenty of rumors swirling about the next generation of these devices. It’s hard to know for sure until the Raspberry Pi Foundation announces the next-gen device but some of the features that we’ll likely see include:
- Faster processor
- More RAM
- Updated ports for external device connections
- Updated Wi-Fi and Bluetooth support
- Better display output
As we pointed out for several of the earlier models, Pi devices don’t necessarily get discontinued when a new one gets released. You don’t need to worry about buying obsolete hardware so if you’re in the market for a Pi, there’s really no need to wait for an unannounced device to ship.
Besides, with the low cost of these devices, buying a second, newer Pi won’t break the bank.
A Perfect Computer for Old-School Hackers
The word “hacker” has come to mean criminal but the original meaning was someone who liked to tinker with technology. The Raspberry Pi is a perfect device for anyone who’s an old-school hacker. You’ll learn a ton about how computers work while tinkering with it.
Be sure to check out our New in Tech section for more interesting articles about technology.
Upgrading Your Pet Supplies for Winter
For most of the country, winter weather is upon us – the days are shorter, the temperatures are frigid, and cozying up on the couch under a snuggly blanket is the name of the game. Just like humans are reactive to winter weather, our pets are, too, so ensuring they’re safe and comfortable throughout the winter is a priority. Whether it’s your first year as a pet owner or maybe you’ve got an aging dog and want to ensure you keep your pet warm during cold weather, keep reading for ways to upgrade your pet supplies for winter.
Winterize Their Doghouse
While some may view outdoor dogs as inhumane, there are many reasons why dogs stay all year outdoors, and some canines prefer it. Whether it’s your choice or your dog’s preference, be sure you’re winterizing their doghouse to keep them safe and cozy. Fill the floor of their dog house with at least six inches of straw or cedar chips and fill any visible holes or cracks on the exterior of their house. You can also raise the doghouse on a pallet and turn it towards your home or nearby shelter.
Protective Outdoor Gear
If your dog is indoors and goes outside for walks and potty breaks, ensure you have protective gear. This is especially important for senior dogs and small and toy breeds. From winter boots to puffy jackets and scarves, bundling up your four-legged family member is essential. Limiting outdoor time for fragile puppies and elderly dogs is equally important, even when they’re bundled up.
Raw Dog Food
The type of food we consume is the foundation for a healthy, long life, and it’s no different for our dogs. A raw dog food diet is the healthiest and most nutritious diet you can offer your pup. Investing in their health by feeding them the highest quality dog food you can afford means longer life and more snuggles and playtime for you. Shop around and compare ingredients and reviews from raw dog food brands; there are many reputable brands. Feeding a raw dog food diet is easy, especially if you take advantage of having it delivered to your doorstep on a schedule that meets your dog’s feeding needs.
Pet Preparedness Kit
Inclimate weather happens during the winter; it’s a given. If you live in an area where you get a lot of snow, even blizzards, you want to upgrade your pet supplies to include a pet preparedness kit. Items in your kit would be emergency food and water stashes. Digital records and photos in case you and your pet become separated. A cozy blanket to keep your pet warm in case the power goes out for an extended period, and the temperature in your home drops significantly. If you want to add a personal touch, a duplicate of their favorite toy will help keep them occupied – pets can sense stress, and keeping them calm and entertained in an emergency is essential.
Upgrade Their Exercise
With cold temperatures and snow, taking your dog on long walks doesn’t seem as tempting as in warmer weather, but it’s still essential to their health and well-being. Dogs need regular physical exercise to keep them not only physically healthy but emotionally as well. Dogs that don’t get enough exercise and play are prone to behavioral issues – especially larger, more energetic breeds. Please make time to play indoors and outdoors to keep your dogs feeling like themselves and stay healthy.
In the same way we’re prone to dry, cracked skin in the winter, so are our dogs. In addition to normal dry, cold weather, dogs may also come into contact with road salts during snowy weather, which can be bad for your dog’s coat and skin. Try to keep your dog away from road salts completely, but wash and dry their paws and stomachs when you come indoors. You’ll also want to pamper your pet with lotions on bare skin or where hair is short. Adding olive oil to your pet’s nose and touchpads can keep them soft and prevent cracking.
Meeting your dog’s needs in the winter is much like meeting your own. Let your dog cuddle in bed with you, snuggle under blankets, and enjoy the snow in moderation – tails will wag all winter long!
6 Essentials for Holiday Travel
The holiday season is upon us, and not everyone will spend them at home. Close to fifty percent of Americans reported they would be traveling this holiday season. If you’re part of that half that will be going out of town this year, you may be wondering what’s essential for your packing list and what to leave at home – after all, you need to save room in your luggage for the presents you’ll be giving and receiving. Keep reading for all the essentials you’ll need in your suitcase to spend the holidays on the go.
The holidays fall in the middle of some cold winter weather, so hydrating products like lip salves and facial moisturizers will keep you looking great from leaving home until you deboard your flight. You can rest assured you’ll arrive in style if you keep your skin hydrated and drink plenty of water from your reusable water bottle. Hydrating is essential during travel, especially when the weather is inclement.
Light layering pieces are essential no matter when you’re traveling, especially for the holidays, as they take place during cold winters. An oversized scarf is a layer everyone needs as it keeps you warm through takeoff and touchdown and can double as a scarf whether you’re traveling by plane, train, or automobile. Puffy jackets are bulky and may not be necessary where you’re headed; opt instead for a light-down jacket with a sweater underneath. Layering pieces in your luggage, like turtlenecks, cardigans, and undershirts, should all be stored in your carry-on or checked luggage.
Sensible Shoes & Socks
Shoes are notorious for taking up a tremendous amount of space in suitcases, so it’s best to take a pair of walking or athletic shoes and a pair of dressier shoes like flats or loafers. Make sure you have socks that will keep you warm if you’re traveling somewhere cold, and low cut no show socks to keep your feet warm but still look stylish with loafers. If you think you’ll be taking part in lots of outdoor adventures, a pair of hiking or snow boots to keep you safe and comfortable is a must. Nothing can put a damper on your day like being uncomfortable or fatigued from the wrong footwear choices, so it’s best to play it safe and sensible during holiday travel.
While this is less about what you pack but what you pack it in, rolling luggage is critical for holiday travel. The busiest travel day of the year is the Sunday after Thanksgiving. Forget breezing through terminals and empty walkways, escalators, and aisles. Nothing lets you feel more at ease than rolling luggage. Opt for a piece with a hard shell to keep your items safe and test the wheels – the ones that move like butter are the best. Though rolling luggage is more expensive than traditional luggage, they keep your hands free from important things like a coffee or your smartphone, and you’ll have one less thing to stress over.
All the Electronics
With holiday travel, delays and extended layovers should be somewhat expected. While ensuring you bring a positive attitude on your trip is critical, having plenty of electronics and chargers to pass the time is key. From fully charged tablets and external battery packs for the kids to portable batteries and your laptop, you’ll be able to binge-watch your favorite shows if you get stuck waiting longer than expected. You’ll want to bring your standard device charges, and it’s worth investing in backups as these items are easily lost or left behind in hotels.
Travel can bring unwanted side effects like jet lag, fatigue, and even catching viruses along the way. Keep your mood and immune system in tip-top shape by packing healthy snacks for the trip. Fresh-cut veggies, trail mixes, protein bars, and jerky are all much better for you than junk food, easily accessible in airports or gas stations. You’ll be glad you planned in this department and so will your travel companions.
Traveling for the holidays can be exhausting and overwhelming sometimes, but by planning, you’ll have a leg up on those who didn’t. Make sure you include the above items on your holiday packing list. Happy Trails!
What is Seasonal Depression?
Seasonal depression, or seasonal affective disorder, is a variant of recurrent depression that begins in the fall and winter seasons. Women ages 18-30 are most affected by this condition, but it can occur at any age, even in a child.
Absolute Soul Secrets is a major network of psychic readers in the
Australia. Rose Smith, head of Absolute Soul Secrets, says the symptoms can manifest more quickly in the colder seasons.
How Is Seasonal Depression Different From Clinical Depression?
The difference stems from the name itself – this type of depression occurs during the fall and winter, while clinical depression does not depend on the time of year.
What Are The Causes Of Seasonal Depression?
There are several. Reduced sunlight can lead to a decrease in serotonin, a brain chemical responsible for our good mood and emotional stability. Another hormone directly related to the amount of sunlight is melatonin. This is produced when darkness falls, causing our bodies to fall asleep. Since there is less light in the winter, there may be more of this hormone in the body, and as a consequence, there is a feeling of lethargy and sleepiness.
Why Does Seasonal Depression Occur In The Fall And Winter?
The combination of decreased serotonin and increased melatonin levels cannot help but affect a person’s biological clock. In people with seasonal depression, the change in circadian rhythms from season to season is not consistent with the seasonal change in daylight hours, which creates difficulties in regulating body function.
What Are The Signs Of Seasonal Depression?
In general, the signs of seasonal depression are the same as any other depression. This is a depressed, depressed state, lowered mood regardless of external circumstances; a decrease or loss of interest in activities that used to bring pleasure (anhedonia). Rapid fatigue, a decrease in performance, and a decrease in vital energy may also be of concern.
Additional symptoms can be completely nonspecific: feelings of guilt and worthlessness, anxiety, low self-esteem, difficulty concentrating; desire for solitude, irritability, eating disorders, sleepiness or insomnia.
What Should You Do If You Notice That Your Significant Other/Friend Has Seasonal Depression?
The first thing to realize is that depression is an illness, not a weakness of character, and that depression is treatable.
The best thing to do is to suggest seeing a specialist. You can offer to go to counseling together if the person is afraid.
Separately, I’d like to remind parents that depression is “age-appropriate. And it is in children that depression usually manifests atypically, and therefore it is especially difficult to detect. In children, depression most often manifests as behavioral disorders. Therefore, it is necessary to be attentive to changes in the well-being and behavior of your loved ones.
How to spot a legal offshore casino?
Still now, playing online casino games is not legal in many countries. So, the only option for players is to play at offshore casinos in those places. Online gambling is allowed in the jurisdictions where these firms are based, so they’re okay to use. And offshore options for players are endless. So be sure to verify the site’s legitimacy when you are eager to select the ‘Click here’ option of these platforms.
Now, how do spot a legit platform that will fulfill all your needs? Or what are the factors we should not overlook before selecting a legal offshore casino? Let’s try to find your answers in the below post.
What are the 5 simple ways to choose an online casino?
There are many things to know before selecting a legal offshore online casino. So, let’s check out the factors that you must consider before choosing one in the below section,
Wide selection of games
The first thing you need to consider when searching for an offshore casino is the gaming selection they can offer. Most genuine and licensed platforms come with a variety of games, such as slot machines, table games, live dealers, or bingo. And it’s pretty simple to spot one and start your gaming experience whenever you like.
A common feature in every top-rated legalized offshore casino is the availability of games provided by genuine software providers, such as Microgaming or NetEnt. It is advantageous for the player when they choose a platform with the availability of such software vendors.
Many of these casinos offer a variety of games, as well as deliver the best possible gaming experience no matter what part of the casino system you choose.
To attract customers and keep them consistent many reliable offshore casino platforms provide generous sign-up and reload bonuses that make the players go home richer. You can make a good amount of money if you know the basic tricks and strategies to play casino games.
Slot machine spins and rounds at many online casinos are regulated to a minimum and a maximum number of wagers. And it will not create an issue for bettors as casinos come with enough maximum wager. VIP programs and high-limit tables are also available on these platforms. Moreover, if you want to gamble a lot of cash, you should find an offshore online casino that offers high-roller.
Mobile gaming experience
You will find many offshore casinos that offer mobile-optimized websites or casino apps so that you can play games while walking in the park or may be standing in a line at a grocery store. So, make sure you spot a site where a mobile-friendly gaming experience is available to make your deposit and withdrawals seamless with a single touch.
Is there any disadvantage to playing at these offshore online casinos?
The only drawback in offshore casinos is that self-exclusion is not available here. So, in that case, we can say they are not the correct options for players who don’t play responsibly.
In simple words, it may be unwise for a gamer displaying signs of dependence to choose this option. But, if you know your limits and are well aware of the fact that when to stop, you are good to go with these platforms.
Linear Polarizer Film with Adhesive online supplier!
Linear polarizer film is a kind of dichroic film that can divide the light with different angle of refraction. It has two types: linear polarizer (LP) and circular polarized linear polarizer (CLP). The difference between these two types is that CLP has 90 degree rotation, while LP only rotates linearly along the direction of polarization. In general, CLP is more suitable for use in photography and 3D projection, because it can better control the direction of polarization during shooting.
Linear polarizer film is a kind of polarizer. It has the ability to filter out the light that is not polarized, which can be used in 3D lens and other fields.
- Dimensions: 2.5×3.0x1.8 inches (6 x 7 x 4 cm)
- Thickness: 0.073 inches (1 mm)
- Weight: 0.23 oz / 6 grams
3D Lens Specifications
This lens is a high quality, accurate and durable 3D lens. It can be used in various applications such as:
- Video and photography cameras.
- Telescope lenses.
- Binoculars and microscopes.
Application of Linear Polarizer Film
Linear polarizer film is widely used in 3D lens, 3D glasses, LCD display, LED backlight and so on. The use of linear polarizer film can effectively reduce the glare from light sources. It also has a strong anti-reflection effect that reduces reflection of the incident light on your eyes and make it more comfortable for you to watch the screen clearly.
Linear polarizer film can be applied to various industries.
Linear polarizer film can be applied to various industries.
- Electronics: Linear polarizers are used in a variety of electronics, including cameras, televisions and projectors. They help reduce glare from light sources by changing the polarization state of light passing through them.
- Photonics: Linear polarizers are also used in optical devices such as lenses and prisms; this makes them important for the production of laser beams or other forms of light that need to be polarized for their use (e.g., holography).
- Photography: In photography, linear polarizers are often used with automatic focus cameras because they help ensure correct focus when taking pictures outdoors during high contrast situations such as full sun lighting up everything around you while leaving dark shadows behind you if your lens is not set correctly beforehand! Plus having some extra control over what gets captured will give yourself more options later down the road when editing images later on after processing has finished processing everything internally using software installed inside computers connected directly onto monitors connected directly onto computers running operating systems installed onto hard drives attached directly into laptops sitting next too desks/desks placed strategically throughout offices/offices etcetera…
We hope that you enjoyed learning about our 3D lens products and how they can be used in your business. We’re always working to improve our solutions so that they are more effective than ever before, so if there is anything else you would like us to add or change please let us know via email or social media!
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