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Gary Sims

Gary has been a tech writer for over a decade and specializes in open source systems. He has a Bachelor's degree in Business Information Systems.He has many years of experience in system design and development as well as system administration, system security and networking protocols. He also knows several programming languages, as he was previously a software engineer for 10 years.

Gary's Posts

Qualcomm Snapdragon 821 versus Apple A10 Fusion

Qualcomm's flagship SoC for 2017 is the Snapdragon 821, and Apple's is the A10 Fusion. They are both popular chips, but how do they compare? Let's find out.
by Gary Sims2 days ago63

Google Pixel review: a technical deep dive

The Pixel has "Phone by Google" engraved on it, which is something new! So lets take a look at the tech, the geeky stuff, that Google built into it.
by Gary Sims6 days ago67

What is the problem with IoT security? – Gary explains

The Internet of Things has been in the news recently following the DDOS attack on Dyn. It highlighted the real security problems with IoT. But what is the problem? Let me explain.
by Gary Sims2 weeks ago15

How easy is it to capture data on public free Wi-Fi? – Gary explains

You should always exercise caution when connecting to open Wi-Fi hotspots. But here is the question, just how easy is it to capture data on public free Wi-Fi?
by Gary Sims3 weeks ago17

ARM announces G51: Second GPU based on Bifrost architecture

ARM unveiled its Bifrost GPU architecture in May 2016, along with the high-end Mali-G71. Now for the midrange ARM has announced the Vulkan enabled Mali-G51.
by Gary SimsOctober 31, 201613

Express VPN review

It seems to me that a week can't go by without there being some revelation or other connected with privacy. The solution is to use a VPN! Here is my full review of Express VPN.
by Gary SimsOctober 21, 201615

How to build your own custom Android ROM

Since all the source code is available for Android you can build your own personalized firmware. Read on to find out how to build your own Android ROM.
by Gary SimsOctober 14, 201631

Actions on Google allows 3rd parties to integrate with Google Assistant

Google will expand its ecosystem via Actions on Google, a platform for 3rd parties to integrate with the Google Assistant.
by Gary SimsOctober 4, 20161

Why is Google building hardware? It’s all about AI

Google has started designing its own hardware as it predicts that the next big innovation is going to take place at the intersection of hardware and software, with AI at the center.
by Gary SimsOctober 4, 20169

How does public key cryptography work? – Gary explains

How keys are distributed is vital to any encryption system. Find out how to do it with the Diffie–Hellman key exchange and using public-key cryptography.
by Gary SimsOctober 4, 20163
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