Wi-Fi is the name of a popular wireless networking technology that uses radio waves to provide wireless high-speed Internet and network connections. Here’s what happens:
- A computer’s wireless adapter translates data into a radio signal and transmits it using an antenna.
- A wireless router receives the signal and decodes it. The router sends the information to the Internet using a physical, wired Ethernet connection.
The process also works in reverse, with the router receiving information from the Internet, translating it into a radio signal and sending it to the computer’s wireless adapter.
WIFI radio communication
The radios used for WIFI communication are very similar to the radios used for cell phones. They can transmit and receive radio waves, and they can convert One’s and Zero’s into radio waves and convert the radio waves back into One’s and Zero.
WIFI radio differences
The notable difference being that they transmit at frequencies of 2.4 GHz or 5 GHz. This frequency is considerably higher than the frequencies used for cell phones. The higher frequency allows the signal to carry more data.
- 802.11a transmits at 5 GHz and can move up to 54 megabits of data per second.
- 802.11b is the slowest and least expensive standard. 802.11b transmits in the 2.4 GHz frequency band of the radio spectrum. It can handle up to 11 megabits of data per second.
- 802.11n is the most widely available of the standards and is backwards compatible with a, b and g. 802.11n reportedly can achieve speeds as high as 140 megabits per second.
- 802.11ac is backwards compatible with the other standards. With n on the 2.4 GHz band and ac on the 5 GHz band, it is less prone to interference. It can move data at a maximum of 450 megabits per second on a single stream.
WIFI radios use 802.11 networking standards, which come in several flavours:
As long as devices have wireless adapters, they can connect to a router and surf the internet. This connection is convenient, virtually invisible and fairly reliable.
Give us a call if you would like for us to help deliver the connectivity you are looking for. Call Ryan Danvers on 072 601 2858.
Windows 11 Upgrade - Will it work on your lapop?
So, you’re wondering about Windows 11, the latest version of Microsoft’s operating system. It looks snazzy and has some neat features. But can your current laptop actually run it? Don’t worry, you don’t need a degree in IT to figure this out! We at abacon IT in Cape Town are here to help you understand the basics.
Upgrading your laptop to Windows 11 can give it a new lease on life. However, Windows 11 has certain system requirements. These are the minimum specifications your laptop needs to have to run the software smoothly. Think of it like needing the right ingredients for a recipe – without them, it just won’t work properly.
One of the most important parts is your laptop’s processor, often called the CPU (Central Processing Unit). This is the “brain” of your computer. Windows 11 needs a fairly recent and capable CPU to function well.
Which Processors Work with Windows 11?
Here’s a simplified look at the processors that are generally compatible:
Intel Processors:
- Generally, Windows 11 requires an 8th-generation Intel Core processor or newer. You might see names like “Intel Core i5-8xxx” or “Intel Core i7-11xxx.” The first number after the “i” (or “i3”) usually indicates the generation. So, an “i5-8250u” is an 8th-generation processor.
- Intel also has its Pentium and Celeron processors. For Windows 11, only certain newer models are compatible.
AMD Processors:
- For AMD, Windows 11 requires Ryzen 2000 Series and newer. You’ll see names like “AMD Ryzen 5 2xxx” or “AMD Ryzen 7 5xxx”. Again, the first number after “Ryzen” indicates the series.
- AMD also has Athlon processors. Similar to Intel’s Pentium and Celeron, only specific newer Athlon models will work with Windows 11.
Important Note: This is a general guideline. There can be exceptions, so it’s always best to double-check your specific processor.
How to Find Out Which Processor Your Laptop Has
Don’t fret, Windows makes it pretty easy to see what CPU is inside your laptop:
- Right-click the Start Button: This is the Windows logo (usually in the bottom-left corner of your screen).
- Select “System”: A new window will pop up with information about your computer.
- Look for “Processor”: You’ll find this listed under the “Device specifications” section. It will tell you the name of your processor, including the manufacturer (Intel or AMD) and the model number, which usually indicates the generation or series.
Once you have this information, you can compare it to the general lists above.
Other Important Bits for Windows 11
Besides the processor, there are a few other things Windows 11 needs:
- RAM (Random Access Memory): Consider this your laptop’s short-term memory. Windows 11 requires at least 4 gigabytes (GB) of RAM. More is always better for smoother performance. Instead, consider 16 gigabytes (GB).
- Storage: To install Windows 11, you’ll need at least 64 GB of free space on your hard drive or SSD (Solid-State Drive). An SSD generally makes your computer much faster.
- TPM 2.0 (Trusted Platform Module): This is a security feature. Most modern laptops have this, but it’s worth checking. You can usually find information on how to check for TPM 2.0 in your laptop’s BIOS settings (you might need to consult your laptop manufacturer’s website for instructions on accessing this).
- Graphics Card: Your graphics card needs to be compatible with DirectX 12 or later with a WDDM 2.0 driver. Most reasonably recent graphics cards will meet this requirement.
- Display: You’ll need a screen with a resolution of at least 720p (HD).
Still Not Sure? We Can Help!
Figuring out all these technical details can be daunting. If you’re still unsure whether your laptop is ready for Windows 11, don’t hesitate to get in touch with us at abacon IT in Cape Town.
Our friendly team can quickly assess your system and give you straightforward advice. We’re here to help your SME thrive with reliable IT solutions! Contact us at 072-601-2858 or email info@abacon.co.za, and we will call you back.
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