Personal Technology Information

Image Formats: GIF, JPEG, BMP


When browsing the internet you are likely to come across many different image formats. However, the most common formats are: CompuServe GIF, JPEG, and Bitmaps.

CompuServe GIF

GIF stands for Graphic Interchange Format and was standardized by CompuServe in 1987. The very first GIF format was GIF87a and saves images at 8 pits-per-pixel with a colour level of 256. Then in 1989 CompuServe updated the GIF format to include animation, transparency, and interlacing, which was called GIF89a. Apart from animation, transparency, and interlacing there is little difference between to two.

JPEG

The JPEG image format was developed by Joint Photographic Experts Group. JPEG's best feature is the compression, you can compact the image file to make it the size smaller (bytes). The problem with this format is that there is a trade-off details detail and size. Generally its best to save JPEG's at 50% compression.

Bitmaps

Bitmaps was invented by Microsoft (everyone's favourite company). The Bitmap format saves your image pixel for pixel, in other words, what ever you see on the screen before you save is what you see when you open the image again. The only drawback is that the file sizes can be extremely large, which may result in longer download/upload times

About The Author

Stephen Hames

I run and operate a web template website called SJH Designs, http://www.sjh-designs.co.uk


MORE RESOURCES:

04/24/2024
Somehow This $10,000 Flame-Thrower Robot Dog Is Completely Legal in 48 States
Meet Thermonator. It blasts fire up to 30 feet and has Bluetooth.


more info


04/24/2024
'Metaphor: ReFantazio' Steals the Best Ideas From 'Persona 5'
Atlus promises it’s next game, out later this year, will be a culmination of all of its beloved RPGs.


more info


04/24/2024
How NASA Repaired Voyager 1 From 15 Billion Miles Away
Engineers have partially restored a 1970s-era computer on NASA's Voyager 1 spacecraft after five months of long-distance troubleshooting. Exactly how long-distance? 15 billion miles away.


more info


04/24/2024
Can the First Amendment Save TikTok?
TikTok says it plans to challenge the law that could ban it in the US in court. Experts think it's got a fighting chance.


more info


04/24/2024
Cyberspies Hacked Cisco Firewalls to Access Government Networks
Sources suspect China is behind the targeted exploitation of two zero-day vulnerabilities in Cisco’s security appliances.


more info


04/24/2024
President Biden Signs Bill That Could Ban TikTok
The law will give TikTok a year to divest from Bytedance, its Chinese owner.


more info


04/24/2024
She Didn't Qualify for a Transplant—So Now She Has a Two Pig Organs
In the first procedure of its kind, a 54-year-old New Jersey woman received a genetically engineered pig kidney and thymus after getting a heart pump.


more info


04/24/2024
The 18 Best Portable Chargers for All of Your Devices
Keep your phone, tablet, laptop, and other electronics running with these handheld power banks.


more info


04/24/2024
The Best Wi-Fi Routers
Sick of having terrible wi-fi? You may just need a more powerful router. We've tested more than a dozen in all shapes, sizes, and price ranges.


more info


04/24/2024
The Best VPNs to Protect Yourself Online
If you've ever worked from a library or coffee shop, you need a VPN. Our top picks work on laptops, phones, and routers, making you a less tempting target for hackers.


more info


04/24/2024
This Furry, Robotic Puppet Comforts Your Crying Baby While You Drive
Iruyo, a new creation from Nissan, uses two-way cameras, microphones, and a whole lot of cuteness to connect you with your baby in the back seat.


more info


04/24/2024
Rabbit's AI Assistant Is Here. And Soon a Camera Wearable Will Be Too
WIRED went along to the company's launch event where customers picked up the very first R1s and learned of an inbound “all-seeing” accompanying AI device.


more info


04/24/2024
How to Handle Online Harassment When It Happens to You
41% of adults in the US have been harassed online. If your mentions, inboxes, and DMs are blowing up with hateful comments, here are the technological and psychological tools you need to weather the storm.


more info


04/24/2024
TikTok's Creator Economy Stares Into the Abyss
The US Senate voted to pass a bill that could see TikTok banned within a year, pitching creators and businesses dependent on the platform into an uncertain future.


more info


04/24/2024
The Showdown Over Who Gets to Build the Next DeLorean
Decades after her dad’s iconic sports car time-traveled into movie history, Kat DeLorean wants to build a modern remake. There’s just one problem: Someone else owns the trademark on her name.


more info


04/24/2024
ShotSpotter Keeps Listening for Gunfire After Contracts Expire
More cities are cutting ties with ShotSpotter, the company whose microphones purport to detect gunshots. But new information shows that ShotSpotter is still sending data to local police in at least three cities, despite their contracts being canceled.


more info


04/24/2024
An Iconic CD Changer Is Back to Challenge Streaming Fatigue
If you were alive in the 1990s, you've probably seen Bang & Olufsen's iconic multi-CD player in a fancy friend's house or on an episode of Entourage. Now, you can buy a reimagined unit—one of just 200—for a mere $55,000.


more info


04/23/2024
This Is the Beginning of the End of TikTok
BREAKING: TikTok might not be around much longer in the US. The Senate just passed a bill that included an ultimatum for the company: divest or be banned altogether. The next stop is President Biden’s desk.


more info


04/23/2024
Noncompetes Are Dead—and Tech Workers Are Free to Roam
A new rule from the US Federal Trade Commission invalidates most noncompete agreements, frequently used to bind tech workers. It could unlock higher wages and more entrepreneurship and innovation.


more info


04/23/2024
Tesla Promises ‘More Affordable Models’ and a ‘Cybercab’
Elon Musk’s automaker told investors Tuesday that sales and revenue are down but that new “more affordable models” will launch before mid-2025, sooner than originally planned.


more info


04/23/2024
The 35 Best Shows on Hulu Right Now
From "Shōgun" to "Under the Bridge," here's everything you should be watching on Hulu this week.


more info


04/23/2024
The Best Gaming Laptops That Pwned the Competition
We tested the latest and greatest gaming laptops—from portable machines to an 18-inch gargantuan—so you can level up your game anywhere.


more info


04/23/2024
Survivalist Answers Survival Questions From Twitter
Survivalist Donny Dust answers your questions about primitive skills and surviving in the wild from Twitter. How do you start a campfire without any matches? If igloos are made of ice, how do they keep you warm? What is the most nutritious insect to eat? What does it mean to die by exposure? Answers to these questions and many more await—it's Survivalist Support.Check out Donny Dust's new book, Wild Wisdom, and pick up a copy at https://www.simonandschuster.com/books/Wild-Wisdom/Donny-Dust/9781668013434Director: Justin WolfsonDirector of Photography: Josh BaneEditor: Cory StevensExpert: Donny DustLine Producer: Joseph BuscemiAssociate Producer: Brandon WhiteProduction Manager: Peter BrunetteProduction & Equipment Manager: Kevin BalashCasting Producer: Nicholas SawyerCamera Operator: Freddie OchoaSound Mixer: Carlos HernandezProduction Assistant: Chloe SmithPost Production Supervisor: Christian OlguinPost Production Coordinator: Ian BryantSupervising Editor: Doug LarsenAdditional Editor: Jason MaliziaAssistant Editor: Billy Ward


more info


04/23/2024
The Best iPad to Buy (and a Few to Avoid)
New iPads are on the way. We break down Apple’s current lineup and what to expect with the upcoming tablets.


more info


04/23/2024
Breathe Easy—We Found the Best Air Purifiers
Keep wildfire smoke, smog, and allergens out. We tested standard and HEPA models to find the right one for your home.


more info



home | site map | contact us