The echiche nke mebere ebe nchekwa mbụ e mepụtara site German ọkà mmụta sayensị Fritz-Rudolf Güntsch na Technische Universität Berlin na 1956 na ya doctoral tesis, Logical Design of a Digital Computer with Multiple Asynchronous Rotating Drums and Automatic High Speed Memory Operation; ọ kọwara a igwe na 6 100-okwu blocks nke isi isi ebe nchekwa na adreesị ohere nke 1,000 100-okwu blocks, na ngwaike na-akpaghị aka na-akpụ akpụ blocks n'etiti isi ebe nchekwa na nke abụọ drum ebe nchekwa. Paging mbụ e emejuputa na University of Manchester dị ka a ụzọ mụbaa Atlas Computer si arụ ọrụ ebe nchekwa site na ijikọta ya 16,384 okwu nke isi ebe nchekwa na ihe 98,304 okwu nke abụọ drum ebe nchekwa. The Atlas mbụ e mepụtara na 1962 ma na-arụ ọrụ prototypes nke paging e mepụtara site 1959.
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