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This is an accepted version of this page This is the latest accepted revision, reviewed on 12 September 2024. World map representing Human Development Index categories (based on 2022 data, published in 2024) Very high (≥ 0.800) High (0.700–0.799) Medium (0.550–0.699) Low (≤ 0.549) Data unavailable World map of countries or territories by Human Development Index scores in increments of ...
Traffic volume for Facebook services on October 4, 2021 with a drop during the global outage. On October 4, 2021, at 15:39 UTC, the social network Facebook and its subsidiaries, Messenger, Instagram, WhatsApp, Mapillary, and Oculus, became globally unavailable for a period of six to seven hours. [1][2][3] The outage also prevented anyone trying ...
High-definition television (HDTV) in the United States was introduced in 1998 and has since become increasingly popular and dominant in the television market. Hundreds of HD channels are available in millions of homes and businesses both terrestrially and via subscription services such as satellite, cable and IPTV. HDTV has quickly become the ...
A purchase of HD Radio equipment or having a car stereo equipped with an HD Radio receiver is required to listen to this broadcast. An outdoor high-gain antenna was assumed in planning for DTV reception. Planning for DTV reception assumed "a properly oriented, high-gain antenna mounted 30 feet in the air outside."
High-definition television (HDTV) describes a television or video system which provides a substantially higher image resolution than the previous generation of technologies. The term has been used since at least 1933; [ 1 ] in more recent times, it refers to the generation following standard-definition television (SDTV).
An Internet outage or Internet blackout or Internet shutdown is the complete or partial failure of the internet services. It can occur due to censorship, cyberattacks, disasters, [1] police or security services actions [2] or errors. Disruptions of submarine communications cables may cause blackouts or slowdowns to large areas.
Ultra-high-definition television (also known as Ultra HD television, Ultra HD, UHDTV, UHD and Super Hi-Vision) today includes 4K UHD and 8K UHD, which are two digital video formats with an aspect ratio of 16:9. These were first proposed by NHK Science & Technology Research Laboratories and later defined and approved by the International ...
The COVID-19 lockdown in the United Kingdom was a series of stay-at-home orders introduced by the British and devolved governments in response to the COVID-19 pandemic. On 23rd March 2020, Prime Minister Boris Johnson announced a nationwide lockdown to curb the widening outbreak of COVID-19.