USB是PC體系中的一套全新的工業標準,它支持單個主機與多個外接設備同時進行數據交換。 首先會介紹USB的結構和特點,包括總線特徵、協議定義、傳輸方式和電源管理等等。這部分內容會使USB開發者和用戶對USB有一整體的認識。
標簽: USB
上傳時間: 2015-10-18
上傳用戶:lixinxiang
代入法的啟發示搜索 我的代碼實現是:按照自然語言各字母出現頻率的大小從高到低(已經有人作國統計分析了)先生成一張字母出現頻率統計表(A)--------(e),(t,a,o,i,n,s,h,r),(d,l),(c,u,m,w,f,g,y,p,b),(v,k,j,x,q,z) ,再對密文字母計算頻率,并按頻率從高到低生成一張輸入密文字母的統計表(B),通過兩張表的對應關系,不斷用A中的字母去替換B中的字母,搜索不成功時就回退,在這里回朔是一個關鍵。
上傳時間: 2015-10-24
上傳用戶:wanqunsheng
′問題描述: 設 X[0:n-1]和 Y[0:n-1]為 2 個數組,每個數組中含有 n 個已排好序的數。試設計一個 O(logn)時間的算法,找出X和Y的2n個數的中位數。 例如,當n=7,X=[1,3,6,7,8,9,10];Y=[2,4,5,11,12,13,14]時,X 和Y 的中位數是7。
上傳時間: 2013-12-26
上傳用戶:咔樂塢
對于給定的n個元素的數組X[0:n-1]和Y[0:n-1],試設計一個O(logn)時間算法,計算X和Y的中位數.
上傳時間: 2014-01-15
上傳用戶:qq21508895
一步 教你如何使用NHibernate在。Dot中實現基于O/R Mapping技術的N層架構
標簽: NHibernate Mapping Dot 如何使用
上傳時間: 2014-01-17
上傳用戶:qazxsw
設計一個O(n*n)時間的算法,找出由n個數組成的序列的最長單調遞增子序列
標簽: 算法
上傳時間: 2014-08-17
上傳用戶:VRMMO
數據結構中的樹狀數組,能夠實現高效查詢,在數組中進行查詢的復雜度為 O(log(n
上傳時間: 2016-01-28
上傳用戶:zjf3110
trie tree, 是一個高效處理字符串的比較常見的算法,能夠讓我們在復雜度 O(log(n))的情況下插入和查詢一個字符串
上傳時間: 2013-12-22
上傳用戶:SimonQQ
The PCI Local bus concept was developed to break the PC data I/O bottleneck and clearly opens the door to increasing system speed and expansion capabilities. The PCI Local bus moves high speed peripherals from the I/O bus and places them closer to the system’s processor bus, providing faster data transfers between the processor and peripherals. The PCI Local bus also addresses the industry’s need for a bus standard which is not directly dependent on the speed, size and type of system processor. It represents the first microprocessor independent bus offering performance more than adequate for the most demanding applications such as full-motion video.
標簽: bottleneck developed the concept
上傳時間: 2014-12-03
上傳用戶:ikemada
The PCI Local bus concept was developed to break the PC data I/O bottleneck and clearly opens the door to increasing system speed and expansion capabilities. The PCI Local bus moves high speed peripherals from the I/O bus and places them closer to the system’s processor bus, providing faster data transfers between the processor and peripherals. The PCI Local bus also addresses the industry’s need for a bus standard which is not directly dependent on the speed, size and type of system processor. It represents the first microprocessor independent bus offering performance more than adequate for the most demanding applications such as full-motion video. Hardware reference
標簽: bottleneck developed the concept
上傳時間: 2016-03-18
上傳用戶:極客