Amaya Toman Kuyambira pachiyambi cha makampani opanga zamakono, nthawi zambiri kapena zochepa zakhala zikuchitika m'derali tsiku ndi tsiku, zomwe zalembedwa m'mbiri yakale kwambiri. Pamndandanda wathu watsopano, tsiku lililonse timakumbukira nthawi zosangalatsa kapena zofunika zomwe zimalumikizidwa ndi tsiku lomwe tapatsidwa.
Izo zikhoza kukhala chidwi inu
THOR-CD kutulutsidwa (1988)
Pa Epulo 21, 1988, Tandy Corporation idalengeza zakukula kwa THOR-CD - compact disc yokhoza kufufutika komanso yogwiritsidwanso ntchito pojambulira nyimbo, makanema kapena data. Komabe, kupanga ma discs ambiri kunayimitsidwa mobwerezabwereza, ndipo Tandy Corporation pamapeto pake idayimitsa pulojekiti yonse yotchedwa THOR-CD - chimodzi mwazifukwa chinali, mwa zina, mtengo wokwera kwambiri. Panthawi yomwe Tandy adabwera ndi CD yamtunduwu, ma compact disc adagwiritsidwa ntchito nthawi zambiri ngati zonyamulira nyimbo, osati kujambula deta.
Izo zikhoza kukhala chidwi inu
Jaromir Miko Child Online Protection Act ikuyamba kugwira ntchito (2000)
Pa Epulo 21, 2000, mwa zina, lamulo loteteza zinsinsi za ana pa intaneti, lomwe linavomerezedwa mu Okutobala 1998, lidayamba kugwira ntchito chilolezo cha woyimilira mwalamulo. Lamuloli ndi chifukwa chake malo ambiri ochezera a pa intaneti ndi maukonde amapezeka kuyambira ali ndi zaka 13.
Zithunzi
Zochitika zina (osati zokha) kuchokera kumunda waukadaulo
- Wasayansi waku Denmark Hans Christian Ørsted woyamba akuwonetsa kukhalapo kwa electromagnetism (1820)
- Lee de Forest akulengeza kupangidwa kwa teknoloji ya phonofilm, kumene phokoso ndi filimu zili pamzere umodzi wa celluloid (1919)
