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When NYSC becomes boring...

on June 07, 2018

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Pushing my brain in search of its limit

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Power

The amount of power your smartphone charger waste? In my view right now I can see six smartphone and tablet chargers. They're all plugged in, and there are no devices attached to them. How much power are they using? Should I unplug them? Rather than guess, I decided to break out my test gear and do some testing. My test meter of choice for this test is the WattsUp? PRO power meter, as I can use this to measure how much power a device is drawing. While mine is a dedicated test meter, you can pick up domestic power meters from most online and brick-and-mortar electrical retailers these days. Power is priced in kilowatt hours (KW h, or 1,000W), which is 3.6 million joules of energy. A device rated at 1,000W running for one hour will use 1KW h, while a device rated at 100W will take 10 hours to consume 1KW h. As for costs, according to data published by the US Energy Information Administration for April 2017, the average cost for 1KW h of electricity in the U...

Networking Fundamentals

In the early days of the web, users connected to the internet by dialing from a PC directly into their internet service provider (ISP) of choice. Can you hear the nostalgic screeching of a modem? But for today’s users having all of their devices “on the network” is a given. Businesses have been doing this for many years in the form of using Ethernet-based LANs… but “LAN” and “Ethernet” are not synonymous. Let’s take a look at how each one contributes to your ability to watch funny cat videos. What Is a LAN? A LAN (Local Area Network is a network) whose members are known to one another, but not the rest of the world. LANs pre-date the internet’s predecessor by a decade or so . For example, an older type called token ring allowed you to connect the network in a big loop. Traffic circled the various network members (or nodes ) until it reached its destination. Modern LAN-connected machines can talk to each other as well as external computers (such as the web servers housi...

DON'T DOWNLOAD THESES SOFTWARES

The malware threatens to send private pictures, messages and internet browsing history to friends/contacts and can be downloaded through apps on Google Play. How it works – It locks the phone’s home screen and claims to have made a backup of any “sensitive information” stored on it. It then threatens to leak it to everyone you know, unless you pay off the criminals behind the ransomware. – Two apps have been identified to carry the malware, Wallpapers Blur HD and Booster & Cleaner Pro according to security technology company, McAfee. – The malware will ask for your credit card number and, in case if you pay them, a message is displayed: “Your personal data has been deleted from our servers and your privacy is secured”. The apps – Wallpapers Blur HD: Downloaded between 5,000 and 10,000 times Rating of 3.6 stars (out of five) – Booster & Cleaner Pro: Downloaded between 1,000 and 5,000 times Rating of 4...

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When NYSC becomes boring...

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