The first generation of computer was characterized by the most prominent feature of the ENIAC-vacuum tubes.Through 1950,several other notable computers were built,each contributing significant advancement,such as binary arithmetic,random access,and the concept of stored programs.These computer concepts are common in today's computers.

第一代計(jì)算機(jī)ENIAC以真空管為顯著標(biāo)志在线看免费A√片，到1950年又制造出了另外幾臺著名的計(jì)算機(jī)，而且每一臺都取得了很大的進(jìn)展国产.com，如像二進(jìn)制運(yùn)算人成视频免费视频在线观看播放、隨機(jī)存取和存儲程序的概念，這些概念在當(dāng)今的計(jì)算機(jī)中仍是普遍使用的se哟哟在线观看。

The speed of a computer is affected by the number of bits it can process at once. For example, a 32- bit computer can perform arithmetic and manipulations on 32-bit numbers, whereas a 16-bit computer must break large numbers into 16-bit quantities, making it slower.

電腦的運(yùn)算速度會受到它一次可以處理位元多寡的影響男人直接插女人下面黄视频在线播放，例如32 位元電腦一次可以進(jìn)行32 位元的運(yùn)算，而16 位元的電腦因?yàn)槊看沃荒苓M(jìn)行16 位元的運(yùn)算日韩精品影视系列在线播放，所以它必須將比較大的數(shù)打散成16 位元的量国产一级AV网站在线，所以這樣會造成速度變慢。

This paper analyses the "hardware system"and"software system"of ancient Chinese mathematicalmechanization from the standpoint of Modern computer technique,putting stress on analysing that counting rod is thematerial base of ancient Chinese mathematical mechanization.S-uperior computting tool and decimal number system supply themathematical mechanization with particularly favourable n

論文關(guān)鍵詞算籌/籌算/算法/數(shù)學(xué)機(jī)械化counting rod/rod—arithmetic/algorithm/mathematicalmechanization日本免費黃色網站com，論文來源大自然探索5www4438，論文單位重慶黄色视频在线播放特级a级，點(diǎn)擊次數(shù) 27，論文頁數(shù) 117～121頁1998年1998月論文網(wǎng) http：//www.lw23.com/paper_104518381/本文從現(xiàn)代計(jì)算機(jī)技術(shù)的角度來分析中國傳統(tǒng)數(shù)學(xué)機(jī)械化的"硬件系統(tǒng)"和"軟件系統(tǒng)"肥婆农村野战AV无码毛片。

The computer aid animation is a high and new technique; it is the thing that combines the art and the computer graphics together. Accompanying with the high speed devolvement of computer hardware and graphic arithmetic , it synthesize the computer science, art, mathematics, physics with the knowledge of the other and related course, the computer aid animation make abundance sequence virtual real images on the screen.

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In this paper, the concept of network security and security structures of OSI and Internet is introduced, and various threats confronting the computer network are also discussed. Several kinds of network information security technologies, including firewall technology, virtual private network, intrusion detection system, data encryption technology, identity authentication and security protocol etc. are also examined. The security of internal network is the biggest problem in the construction of each network. The solution to this problem lies in setting up a firewall. The theory of a firewall and the approach to its actualization is studied. Intrusion detection system, an important part of the computer network security system, has gained extensive attention. IDS monitors the computer and network traffic for intrusion and suspicious activities. It not only detects the intrusion from the extranet hacker, but also the intranet users. The emergence of virtual private network paves the way for realizing secure connection of LAN quickly and at a relatively low cost. The concept, function, key techniques, including the tunnel technology, and the ways to realize VPN are expounded in this paper. Also introduced is the data encrypt network technology, which is called the soul of computer network security, such as digital digest, digital signature, digital certificate, digital encrypt arithmetic and so on. At the same time, the principle and the process of implementing network security by digital certificate and digital signature, the basic principle and characters of security protocols, and finally, three of the security protocols, concerning the security problems in network, IPsec, SLL and SET are analyzed in detail Computer network system should be a system of dynamic defence, both dynamic and static, passive as well as active, and even offensive, combined with management and technology.

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With the development of computer technology, the computer business has been based on a single arithmetic, document handling, based on the simple links to the internal network of internal processing, office automation, development of enterprises based on complex intranets, external network, the global Internet enterprise-class computer systems and the scope of information sharing and processing.

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With the development of computer technology, the computer business has been based on a single arithmetic, document handling, Based on the simple links to the internal network of internal processing, office automation, development of enterprises based on the complexity of the internal network, external network, the Global Internet enterprise-class computer systems and the worldwide information sharing and processing.

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High precision format, unstructured dynamic mesh with a large displacement and multi-species gas flows were computationally expensive, the problem of resourceless and inefficient of single computer appeared. Parallel arithmetic based on PC-Cluster system for the oblique detonation wave flow and the muzzle flow include high speed projectile were discussed. The results proved that the rationality of parallel arithmetic provided a new method to simulate the complex chemical reaction flows. The present code represents a validated, efficient and versatile tool developed for the simulation of hypersonic multi-species chemical non-equilibrium flows.

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In this paper, by using the method tO get the arithmetic solution and with the formula calcuatring the moving particle trace in magnetic field, corrected be computer, it is easy to get the arithmetic solution, in addition,the result of solving is giv...

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This paper first elaborated the principle of SINS, some interrelated information,and the affect of renewed arithmetic to the system"s precision. Then, we studied thequaternion in traditional renewed attitude arithmetic. The quaternion is simple, andwhen run it into computer, it"s time saving. So, this arithmetic is often adopted byengineering. However, the quaternion brought unexchangeable error inevitably. Whenthe carrying body moves in highly dynamic situation, the error would become larger.So we should take effective measure to get over it.

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