電算
出自維基百科,自由嘅百科全書
電算,亦都叫做計算機科學或者電腦科學,係研究資訊同計算基礎,同埋點樣砌電腦系統嘅專業學問。[1][2][3]電算入面分好多門,有啲專門諗電算出來嘅結果,好似電腦圖象(computer graphics),有啲就諗計算問題(computational problem),好似計算複雜度理論(computational complexity theory),有啲就諗點去用出來,好似編程語言理論(programming language theory)會諗點表示電算,而電腦編程(computer programming)就係用一隻編程語言(programming language)去搞掂一啲電算難題。重有一啲會諗人同電腦互動,即係諗下點樣整電腦,編電算,先至係有用,用得到,重要個個人都用得到。
研究同做呢門嘅人就叫電算師(Computer scientist)。
[編輯] 歷史
電算呢門可以追返上去未有摩登電腦嘅遠古時代。人諗咗好多架生來計數,好似算盤咁。威廉嶭卡(Wilhelm Schickard) 1623起咗第一部可以機械計數機。[4] 去到維多利亞時代,Charles Babbage 設計咗部差分機(difference engine)[5], and around 1900 the IBM corporation sold punch-card machines[6]。不過呢啲咸不爛都係做一樣,至叻都係可以做多幾樣,同電腦差得遠。
[編輯] 參考
- ↑ "Computer science is the study of information" Department of Computer and Information Science, Guttenberg Information Technologies
- ↑ "Computer science is the study of computation." Computer Science Department, College of Saint Benedict, Saint John's University
- ↑ "Computer Science is the study of all aspects of computer systems, from the theoretical foundations to the very practical aspects of managing large software projects." Massey University
- ↑ Nigel Tout (2006). Calculator Timeline. Vintage Calculator Web Museum. Retrieved on 2006-09-18.
- ↑ Science Museum - Introduction to Babbage. Retrieved on 2006-09-24.
- ↑ IBM Punch Cards in the U.S. Army. Retrieved on 2006-09-24.