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In this article we look at image optimisation, the different types of compression and image files, and how files different file formats can be compared and best used. Vectors or Bitmaps? Raw, digital image files start as either vectors or bitmaps/rasters/pixel maps. Bitmaps are made from pixels whereas vectors are made using mathematical formulas, co-ordinates…
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In a change to WhatsApp’s privacy policy from next month, users outside of Europe will have to agree to share their personal information with WhatsApp’s owner Facebook or leave the app. Outside Europe From February 8, 2021, a compulsory aspect of continuing to use WhatsApp outside the EU and EEA will be to agree to…
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As 2020 draws to a close, here is look back on some of the biggest tech stories and issues in the year that was dominated by the effects of a global pandemic. Disastrous The shocking death toll and infection rates, the lockdowns, hardship, and job losses for large numbers of the population, huge pressure on…
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With Christmas just around the corner here are some suggestions for how you and your loved ones can stay safe online over this festive period and beyond. The Shift Online The pandemic has prompted a huge shift online this year for work and now, with the second wave in full flight, for online shopping. Back…
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With the UK facing different rules and lockdowns, there’s evidence that retailers are trying to overcome their significant challenges by becoming more agile and adapting where possible. High Street Decline Prior to the pandemic, those with bricks and mortar shops in UK high streets were already facing challenges. Research from 2018 (Statista), for example, showed…
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An AI study of the language used on social media platform Reddit has revealed increasing levels of anxiety since the beginning of the pandemic. Study The study, by MIT and Harvard University researchers, sought to leverage natural language processing (NLP) algorithms to characterise changes in some of the world’s largest mental health (15 groups) and…
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A recent Business Insider Report has highlighted how third-party apps may be exposing some data and details of the activity of WhatsApp users. WhatsApp – Known For Encryption Facebook-owned WhatsApp is known for its end-to-end encryption. This means that only the sender and receiver can read the message between them. In addition to being convenient,…
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The online environment can be a dangerous as well as a fun place for young people so here are some tips and tools to help keep kids safe online. The Risks Children face many risks online including seeing/watching things they shouldn’t, arriving on websites that contain content not suitable for them, making contact with/being contacted…
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In an open letter to Google, Facebook, Apple, Amazon and Microsoft, MPs, academics, and campaigners have asked the big tech companies to stop targeting children with personalised advertising. Global Action Plan The letter has been published online by Global Action Plan (GAP) which is a charity that campaigns on primarily environmental issues but also believes…
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With the internet and particularly social media awash with pictures, videos, news, and other content which may not be all that it seems, here is a guide to spotting fake news and content. Misinformation There are a number of sources and motivations for publishing content, misleading stories/misinformation/disinformation/’fake news’, photos and videos that are not what…
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