出版時間:1996-12 出版社:外文出版社 作者:(英)岡頓 頁數(shù):343
內(nèi)容概要
信息技術(shù)不再是專家的專利,如今它已滲透到人們?nèi)粘I钪?,影響著人類生活的方方面面,如:在銀行里你可以使用自動取款機;在辦公室或家里使用電腦。本詞典正是為了使讀者系統(tǒng)、全面地了解信息技術(shù)知識而編寫的。它釋義清晰、準確,內(nèi)容涉及從個人電腦的硅片到國際電子通訊網(wǎng)絡(luò)的大型主機系統(tǒng),涵蓋了工業(yè)標準,縮略語、程序設(shè)計專用語、終端用戶及重大革新技術(shù)。同時,本詞典還收錄了近年來信息技術(shù)領(lǐng)域涌現(xiàn)出來的多媒體、目標傾向和電子通訊開發(fā)等新概念。本詞典既面向計算機專業(yè)人員又適合于廣大計算機愛好者。
作者簡介
作者:(英國)托尼?岡頓(Tony Gunton)
章節(jié)摘錄
版權(quán)頁: 插圖: digital circuit A transmission line that carries information in digital form,in other words as a series of coded electrical pulses.Digital information,such as a coded textmessage,can be carried on a digital circuit as it is.without the conversion by means of modems that is necessary to carry digital information over analog channels Telephonecouversations can also be carried on digital circuits.To do so,the analog voice signal isconverted to digital form by sampling it at inrervals,and convening the frequency foundinto a digital code-see pulse code modulation. digital computer A roachine that can accepta series of instructions(a program),and canthen interpret these instructions while accepting and processing data,in order to generatenew informadon or to control another machine or process.Both the program and the dataare represented in digital form,as codes or numbers,and this distinguishes digital fromanalog computers,which operate on physical values such as voltages or movements.
編輯推薦
《企鵝信息技術(shù)詞典(英文版)》還收錄了近年來信息技術(shù)領(lǐng)域涌現(xiàn)出來的多媒體、目標傾向和電子通訊開發(fā)等新概念。此書既面向計算機專業(yè)人員又適合于廣大計算機愛好者。
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