最新20xx電大計(jì)算機(jī)組成原理期末復(fù)習(xí)考試小抄總結(jié)-在線瀏覽
2025-05-10 09:12本頁面
【正文】 件設(shè)備都稱為外部設(shè)備。輸入是計(jì)算機(jī)工作的起點(diǎn)，輸入設(shè)備將外部信息通過一定轉(zhuǎn)換后送入計(jì)算機(jī)。坐標(biāo)定位設(shè)備：鼠標(biāo)，軌跡球，操縱桿，觸摸屏。輸出設(shè)備將儲存在計(jì)算機(jī)內(nèi)部的信息以各種形式反饋給用戶，主要包括：顯示器，打印機(jī)。LCD可視角度：LCD的特有指標(biāo)，指在屏幕的一側(cè)仍可清晰看見屏幕影像的最大角度，可視角度越大越好，一般左右對稱。硬盤：工作原理：通過磁層的磁化來儲存信息。信息存儲在盤片上，由磁頭負(fù)責(zé)讀/寫。 扇區(qū)：磁道上被劃分成的區(qū)域。輸入/輸出系統(tǒng)（I／O系統(tǒng)）硬件上包括I／O設(shè)備及其與主機(jī)進(jìn)行數(shù)據(jù)交換的I／O接口。I／O設(shè)備通過I／Ｏ接口與主機(jī)交換信息時(shí)，控制方式有：查詢方式，中斷方式，DMA方式，其他方式（包括通道方式，外圍處理機(jī)方式，網(wǎng)絡(luò)方式）。 Visafree policy brings Chengdu biz, tourism boost. Making national headlines several times, Chengdu39。s level of internationalization. The policy will also bring direct economic revenue, Li said. Chengdu has many cultural legacies and is also a paradise for panda lovers with the world39。s ancient indigenous religion, while Du jiang yan is considered to be the oldest functioning watercontrol project in the world. Chengdu ranked third in tourist facilities, management and services among 60 Chinese cities in a customer satisfaction survey released last year. But, Li added that efforts are still needed to develop more tourism products, improve English services and provide accurate translation of traffic signs and scenic billboards. Zhao Yun, chairwoman of British Chamber of Commerce Southwest China, told China Daily that his colleagues found the policy very convenient. A British client once flew here and stayed for just one day to check her ordered goods, she said. Zhao was born in Shanxi province, but she has lived in Chengdu for more than 10 years. My life was like a running race moving from place to place. I also lived in Beijing and Shanghai before, she said. But Chengdu is a place that you never want to leave once settling down. It is now my second hometown, she said. If the environment is further improved, the city will attract more people to visit and live, with the 72hour visafree policy and pelling conditions in transportation, culture, climate and cuisine, he
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