Amaya Toman N'akụkụ nke taa nke usoro anyị banyere ihe omume dị mkpa n'ọhịa nke teknụzụ, anyị ga-echeta ọzọ ụbọchị ncheta metụtara ụlọ ọrụ Apple mgbe oge ụfọdụ gasịrị. Taa bụ ụbọchị ncheta nke ngosi nke Powebook 100. Ma anyị ga-ekwukwa banyere ọkụ ọkụ Thomas A. Edison ma ọ bụ patent maka ebe nchekwa ferrite.
O nwere ike ịbụ mmasị gị
Igwe ọkụ Thomas A. Edison (1879)
N'October 21, 1879, Thomas A. Edison dechara ọnwa iri na anọ nke ịnwale bọlbụ ọkụ eletrik ya. Ọ bụ ezie na bọlbụ nnwale nke mbụ were naanị awa 14, ọ bụ nnukwu ihe ịga nke ọma n'oge ahụ. Edison nụchara teknụzụ dị afọ 13,5 iji mepụta bọlbụ ọkụ na-echekwa ego.
Ụlọ foto
Patent maka ebe nchekwa ferrite (1949)
N'October 21, 1949, ọkà mmụta sayensị America nke sitere na Chinese An Wang kwadoro ihe a na-akpọ ebe nchekwa ferrite. Echiche mbụ nke iji ferromagnetic ihe maka mmezu nke ncheta mụrụ na 1945 n'uche J. Presper Eckert na Jeffrey Chuan Chu nke Mahadum Moore nke Mahadum Pennsylvania. N'ihe banyere patent Wang, Otú ọ dị, ọ bụghị ebe nchekwa dị ka anyị si mara ya taa, kama ụdị sekit na-eji abụọ ferrite cores kwa bit n'oge ahụ.
Akwụkwọ ikike nke Apple (1991)
N'October 21, 1991, Apple webatara obere laptọọpụ ya nke a na-akpọ Powerbook 100. E gosipụtara kọmpụta ahụ na ngosi kọmputa COMDEX na Las Vegas, ma ekwesịrị ịnọchite anya ụdị njedebe dị ala nke atọ nke Apple PowerBooks nke mbụ wepụtara n'otu oge. Akwụkwọ ndetu Powerbook 100 dabara na ihe nrụpụta 16MHz Motorola 68000 wee nwee ihe nleba anya monochrome pasive nke anụ ọhịa itoolu nke Matrix LCD. PowerBook — ma ọ bụ karịa ahịrị ngwaahịa niile — bụ ihe ijuanya na ndị ọrụ nabatara nke ọma, na-enweta Apple ihe karịrị ijeri $XNUMX n'afọ mbụ ya.
