{"resolved":true,"match_type":"uuid","source_type":"original_book","book_id":"38270854-596f-4a26-8183-db8c968c6020","title":"编码 隐匿在计算机软硬件背后的语言","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787121181184","requested_by":"printed_page","book":{"source_type":"original_book","book_id":"38270854-596f-4a26-8183-db8c968c6020","id":"38270854-596f-4a26-8183-db8c968c6020","uuid":"38270854-596f-4a26-8183-db8c968c6020","title":"编码 隐匿在计算机软硬件背后的语言","normalized_title":"编码隐匿在计算机软硬件背后的语言","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787121181184","isbns":["9787121181184","0123456789","6044921875","3039331000","0000000000","0000000000000"],"parsed":true,"ai_readable":true,"document_type":"book","page_count":438,"navigation_url":"https://workshop.closeclaw.top/ai/book/38270854-596f-4a26-8183-db8c968c6020","title_url":"https://workshop.closeclaw.top/ai/title/%E7%BC%96%E7%A0%81%20%E9%9A%90%E5%8C%BF%E5%9C%A8%E8%AE%A1%E7%AE%97%E6%9C%BA%E8%BD%AF%E7%A1%AC%E4%BB%B6%E8%83%8C%E5%90%8E%E7%9A%84%E8%AF%AD%E8%A8%80","fixed_page_url_template":"https://workshop.closeclaw.top/ai/book/38270854-596f-4a26-8183-db8c968c6020/page/{printed_page}","path_api_url_template":"https://workshop.closeclaw.top/api/ai/book/38270854-596f-4a26-8183-db8c968c6020/page/{printed_page}","read_url":"https://workshop.closeclaw.top/api/ai/read/38270854-596f-4a26-8183-db8c968c6020","page_url":"https://workshop.closeclaw.top/api/ai/books/38270854-596f-4a26-8183-db8c968c6020/page","search_url":"https://workshop.closeclaw.top/api/ai/books/38270854-596f-4a26-8183-db8c968c6020/search"},"page":{"printed_page":213,"pdf_page":229,"physical_index":229,"physical_index_base":0,"printed_page_status":"recognized","page_sha256":"fd7282b20fefd46efd7402a2581c64ac2bec5e7487be4d3408a8daaa81ae8a29"},"chapter":"编码隐匿在计算机软硬件背后的语言","content":"面板将重新获得对存储器的控制能力。\n\n这种功能可以用一些2-1选择器来实现。仔细数一下会发现，我们需要25个2-1选择器其中包括16个地址输入端、8个数据输入端，以及1个写操作端。电路如下图所示。\n\n当控制端开关断开时，RAM阵列的地址端、数据输入和写操作端的数据全部来源于外部信号，也就是在2-1选择器的左上角的输入信号；当控制端开关闭合，RAM阵列的地址端、数据输入端和写操作端的数据来源于控制面板开关发出的信号。但最终RAM阵列的输出信号都会传输到8个灯泡上或其他可能的地方。\n\n16 存储器组织\n\n213","previous_page":212,"next_page":214}