{"id":477612,"date":"2023-08-09T09:17:42","date_gmt":"2023-08-09T09:17:42","guid":{"rendered":""},"modified":"2023-09-05T11:15:05","modified_gmt":"2023-09-05T11:15:05","slug":"input-output-i-o","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/cn\/wiki\/input-output-i-o\/","title":{"rendered":"\u8f93\u5165\/\u8f93\u51fa\uff08I\/O\uff09"},"content":{"rendered":"<p>\u8f93\u5165\/\u8f93\u51fa\uff08I\/O\uff09\u662f\u6307\u8ba1\u7b97\u673a\u7cfb\u7edf\u4e0e\u5176\u5916\u90e8\u8bbe\u5907\u6216\u7f51\u7edc\u4e4b\u95f4\u7684\u901a\u4fe1\u548c\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u3002\u5b83\u5728\u5b9e\u73b0\u7528\u6237\u548c\u7cfb\u7edf\u4e4b\u95f4\u7684\u4ea4\u4e92\u65b9\u9762\u53d1\u6325\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u5e76\u4fc3\u8fdb\u8ba1\u7b97\u7cfb\u7edf\u7684\u786c\u4ef6\u548c\u8f6f\u4ef6\u7ec4\u4ef6\u4e4b\u95f4\u7684\u4fe1\u606f\u4ea4\u6362\u3002 I\/O \u5bf9\u4e8e\u5404\u79cd\u8ba1\u7b97\u4efb\u52a1\u81f3\u5173\u91cd\u8981\uff0c\u4ece\u901a\u8fc7\u952e\u76d8\u6216\u9f20\u6807\u7684\u7b80\u5355\u7528\u6237\u8f93\u5165\u5230\u7f51\u7edc\u8bbe\u5907\u4e4b\u95f4\u7684\u590d\u6742\u6570\u636e\u4f20\u8f93\u3002<\/p>\n<h2>\u8f93\u5165\/\u8f93\u51fa (I\/O) \u7684\u8d77\u6e90\u5386\u53f2\u53ca\u5176\u9996\u6b21\u63d0\u53ca<\/h2>\n<p>\u8f93\u5165\/\u8f93\u51fa\u7684\u6982\u5ff5\u8d77\u6e90\u4e8e\u8ba1\u7b97\u673a\u53d1\u5c55\u7684\u65e9\u671f\uff0c\u5f53\u65f6\u8ba1\u7b97\u673a\u662f\u901a\u8fc7\u7a7f\u5b54\u5361\u548c\u7535\u4f20\u6253\u5b57\u673a\u7ec8\u7aef\u8fdb\u884c\u64cd\u4f5c\u7684\u300220 \u4e16\u7eaa\u4e2d\u53f6\uff0c\u5927\u578b\u8ba1\u7b97\u673a\u5f00\u59cb\u4f7f\u7528 I\/O \u7cfb\u7edf\u6765\u7ba1\u7406\u4e0e\u6253\u5370\u673a\u3001\u8bfb\u5361\u5668\u548c\u78c1\u5e26\u9a71\u52a8\u5668\u7b49\u5916\u56f4\u8bbe\u5907\u7684\u4ea4\u4e92\u3002<\/p>\n<p>\u7b2c\u4e00\u6b21\u63d0\u5230 I\/O \u53ef\u4ee5\u8ffd\u6eaf\u5230 20 \u4e16\u7eaa 50 \u5e74\u4ee3\u65e9\u671f\u5927\u578b\u8ba1\u7b97\u673a\u65f6\u4ee3\u3002\u968f\u7740\u8ba1\u7b97\u6280\u672f\u7684\u53d1\u5c55\uff0cI\/O \u7684\u6982\u5ff5\u4e0d\u65ad\u6269\u5c55\uff0c\u5e76\u4e14\u968f\u7740\u4e2a\u4eba\u8ba1\u7b97\u673a\u7684\u51fa\u73b0\uff0c\u5b83\u6210\u4e3a\u8ba1\u7b97\u7684\u4e00\u4e2a\u57fa\u672c\u65b9\u9762\u3002<\/p>\n<h2>\u6709\u5173\u8f93\u5165\/\u8f93\u51fa (I\/O) \u7684\u8be6\u7ec6\u4fe1\u606f<\/h2>\n<h3>\u8f93\u5165\/\u8f93\u51fa (I\/O) \u7684\u5185\u90e8\u7ed3\u6784 \u2013 I\/O \u7684\u5de5\u4f5c\u539f\u7406<\/h3>\n<p>\u8f93\u5165\/\u8f93\u51fa\u6d89\u53ca\u4e24\u4e2a\u4e3b\u8981\u8fc7\u7a0b\uff1a\u8f93\u5165\u548c\u8f93\u51fa\u3002\u8f93\u5165\u8fc7\u7a0b\u6d89\u53ca\u4ece\u5916\u90e8\u6e90\u63a5\u6536\u6570\u636e\u6216\u547d\u4ee4\uff0c\u800c\u8f93\u51fa\u8fc7\u7a0b\u6d89\u53ca\u5c06\u6570\u636e\u6216\u7ed3\u679c\u4ece\u8ba1\u7b97\u673a\u7cfb\u7edf\u53d1\u9001\u5230\u5916\u90e8\u8bbe\u5907\u6216\u7f51\u7edc\u3002<\/p>\n<p>\u4e3a\u4e86\u5b9e\u73b0\u9ad8\u6548\u7684 I\/O \u64cd\u4f5c\uff0c\u73b0\u4ee3\u8ba1\u7b97\u7cfb\u7edf\u5b9e\u73b0\u4e86\u5404\u79cd\u786c\u4ef6\u548c\u8f6f\u4ef6\u673a\u5236\u3002\u8fd9\u4e9b\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u8f93\u5165\/\u8f93\u51fa\u901a\u9053<\/strong>\uff1a\u8fd9\u4e9b\u662f CPU \u548c\u5916\u90e8\u8bbe\u5907\u4e4b\u95f4\u4f20\u8f93\u6570\u636e\u7684\u8def\u5f84\u3002\u5b83\u4eec\u7531\u5904\u7406\u6570\u636e\u4f20\u8f93\u7684 I\/O \u63a7\u5236\u5668\u7ba1\u7406\uff0c\u4f7f CPU \u80fd\u591f\u4e13\u6ce8\u4e8e\u5904\u7406\u4efb\u52a1\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u7f13\u51b2\u533a<\/strong>\uff1a\u7f13\u51b2\u533a\u5145\u5f53 I\/O \u64cd\u4f5c\u671f\u95f4\u4fdd\u5b58\u6570\u636e\u7684\u4e34\u65f6\u5b58\u50a8\u4f4d\u7f6e\u3002\u5b83\u4eec\u53ef\u4ee5\u6d88\u9664 CPU \u548c\u8f83\u6162 I\/O \u8bbe\u5907\u4e4b\u95f4\u7684\u901f\u5ea6\u5dee\u5f02\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u4e2d\u65ad<\/strong>\uff1a\u4e2d\u65ad\u662f I\/O \u8bbe\u5907\u9700\u8981\u6ce8\u610f\u65f6\u53d1\u9001\u7ed9 CPU \u7684\u4fe1\u53f7\u3002\u5b83\u4eec\u5141\u8bb8 CPU \u5feb\u901f\u54cd\u5e94\u65f6\u95f4\u654f\u611f\u7684 I\/O \u64cd\u4f5c\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u76f4\u63a5\u5185\u5b58\u8bbf\u95ee (DMA)<\/strong>\uff1aDMA \u4f7f\u67d0\u4e9b I\/O \u8bbe\u5907\u80fd\u591f\u76f4\u63a5\u8bbf\u95ee\u8ba1\u7b97\u673a\u7684\u5185\u5b58\uff0c\u4ece\u800c\u51cf\u5c11 CPU \u5728\u6570\u636e\u4f20\u8f93\u4e2d\u7684\u53c2\u4e0e\u5e76\u63d0\u9ad8\u6574\u4f53\u6027\u80fd\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8f93\u5165\/\u8f93\u51fa\u8c03\u5ea6<\/strong>\uff1aI\/O \u8c03\u5ea6\u7b97\u6cd5\u786e\u5b9a I\/O \u8bf7\u6c42\u7684\u5904\u7406\u987a\u5e8f\uff0c\u4ee5\u4f18\u5316\u6548\u7387\u5e76\u51cf\u5c11\u5ef6\u8fdf\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u8f93\u5165\/\u8f93\u51fa\uff08I\/O\uff09\u7684\u4e3b\u8981\u7279\u6027\u5206\u6790<\/h2>\n<p>\u8f93\u5165\/\u8f93\u51fa (I\/O) \u7684\u4e3b\u8981\u7279\u6027\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u53cc\u5411\u6027<\/strong>\uff1aI\/O \u4fc3\u8fdb\u8ba1\u7b97\u673a\u7cfb\u7edf\u4e0e\u5916\u90e8\u8bbe\u5907\u4e4b\u95f4\u7684\u53cc\u5411\u901a\u4fe1\uff0c\u5b9e\u73b0\u6570\u636e\u8f93\u5165\u548c\u8f93\u51fa\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u591a\u6837\u6027<\/strong>\uff1aI\/O \u6db5\u76d6\u5e7f\u6cdb\u7684\u8bbe\u5907\uff0c\u4ece\u952e\u76d8\u548c\u6253\u5370\u673a\u7b49\u4f20\u7edf\u5916\u56f4\u8bbe\u5907\u5230\u73b0\u4ee3\u7f51\u7edc\u8bbe\u5907\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6027\u80fd\u5f71\u54cd<\/strong>\uff1a\u9ad8\u6548\u7684 I\/O \u64cd\u4f5c\u5bf9\u4e8e\u7cfb\u7edf\u6027\u80fd\u81f3\u5173\u91cd\u8981\uff0c\u56e0\u4e3a\u7f13\u6162\u6216\u4f4e\u6548\u7684 I\/O \u53ef\u80fd\u4f1a\u6210\u4e3a\u6574\u4e2a\u8ba1\u7b97\u8fc7\u7a0b\u7684\u74f6\u9888\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u9519\u8bef\u5904\u7406<\/strong>\uff1a\u9700\u8981\u5f3a\u5927\u7684\u9519\u8bef\u5904\u7406\u673a\u5236\u6765\u786e\u4fdd I\/O \u64cd\u4f5c\u671f\u95f4\u7684\u6570\u636e\u5b8c\u6574\u6027\u548c\u7cfb\u7edf\u7a33\u5b9a\u6027\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u8f93\u5165\/\u8f93\u51fa (I\/O) \u7684\u7c7b\u578b<\/h2>\n<p>\u6839\u636e\u6570\u636e\u4f20\u8f93\u7684\u6027\u8d28\u548c\u6240\u6d89\u53ca\u7684\u8bbe\u5907\uff0cI\/O \u53ef\u4ee5\u5206\u4e3a\u4e0d\u540c\u7684\u7c7b\u578b\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684 I\/O \u7c7b\u578b\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7c7b\u578b<\/th>\n<th>\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u4e32\u884c\u8f93\u5165\/\u8f93\u51fa<\/td>\n<td>\u6570\u636e\u6309\u987a\u5e8f\u3001\u4e00\u70b9\u4e00\u70b9\u5730\u4f20\u8f93\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u5e76\u884c\u8f93\u5165\/\u8f93\u51fa<\/td>\n<td>\u6570\u636e\u540c\u65f6\u3001\u5e76\u884c\u4f20\u8f93\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u5757 I\/O<\/td>\n<td>\u6570\u636e\u4ee5\u56fa\u5b9a\u5927\u5c0f\u7684\u5757\u4f20\u8f93\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u5b57\u7b26\u8f93\u5165\/\u8f93\u51fa<\/td>\n<td>\u6570\u636e\u6309\u5b57\u7b26\u4f20\u8f93\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u7f51\u7edc\u8f93\u5165\/\u8f93\u51fa<\/td>\n<td>\u6570\u636e\u901a\u8fc7\u7f51\u7edc\u4f20\u8f93\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u5185\u5b58\u6620\u5c04 I\/O<\/td>\n<td>\u8bbe\u5907\u76f4\u63a5\u6620\u5c04\u5230\u5185\u5b58\u7a7a\u95f4\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u8f93\u5165\/\u8f93\u51fa\uff08I\/O\uff09\u7684\u4f7f\u7528\u65b9\u6cd5\u3001\u4f7f\u7528\u4e2d\u9047\u5230\u7684\u95ee\u9898\u53ca\u5176\u89e3\u51b3\u65b9\u6848<\/h2>\n<p>I\/O \u7684\u4f7f\u7528\u6269\u5c55\u5230\u5404\u4e2a\u9886\u57df\u548c\u5e94\u7528\u7a0b\u5e8f\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u7528\u6237\u4e92\u52a8<\/strong>\uff1aI\/O \u65b9\u4fbf\u7528\u6237\u901a\u8fc7\u952e\u76d8\u3001\u9f20\u6807\u3001\u89e6\u6478\u5c4f\u548c\u8bed\u97f3\u547d\u4ee4\u8fdb\u884c\u8f93\u5165\uff0c\u4f7f\u7528\u6237\u80fd\u591f\u4e0e\u8ba1\u7b97\u673a\u548c\u5e94\u7528\u7a0b\u5e8f\u8fdb\u884c\u4ea4\u4e92\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6570\u636e\u5b58\u50a8<\/strong>\uff1aI\/O \u5bf9\u4e8e\u5411\u786c\u76d8\u3001\u56fa\u6001\u9a71\u52a8\u5668\u548c\u5149\u5b66\u4ecb\u8d28\u7b49\u5b58\u50a8\u8bbe\u5907\u8bfb\u53d6\u548c\u5199\u5165\u6570\u636e\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8054\u7f51<\/strong>\uff1aI\/O \u5bf9\u4e8e\u7f51\u7edc\u901a\u4fe1\u81f3\u5173\u91cd\u8981\uff0c\u53ef\u4ee5\u901a\u8fc7\u4e92\u8054\u7f51\u6216\u672c\u5730\u7f51\u7edc\u5728\u8ba1\u7b97\u673a\u4e4b\u95f4\u4f20\u8f93\u6570\u636e\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5370\u5237<\/strong>\uff1aI\/O \u5141\u8bb8\u8ba1\u7b97\u673a\u4e0e\u6253\u5370\u673a\u548c\u5176\u4ed6\u8f93\u51fa\u8bbe\u5907\u8fdb\u884c\u901a\u4fe1\uff0c\u4ee5\u751f\u6210\u6570\u5b57\u5185\u5bb9\u7684\u7269\u7406\u526f\u672c\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u5c3d\u7ba1 I\/O \u5f88\u91cd\u8981\uff0c\u4f46\u5b83\u4ecd\u4f1a\u9047\u5230\u4e00\u4e9b\u6311\u6218\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u6f5c\u4f0f<\/strong>\uff1a\u7f13\u6162\u7684 I\/O \u53ef\u80fd\u4f1a\u5bfc\u81f4\u54cd\u5e94\u65f6\u95f4\u5ef6\u8fdf\u548c\u7cfb\u7edf\u6027\u80fd\u95ee\u9898\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5e76\u53d1\u6027<\/strong>\uff1a\u5982\u679c\u7ba1\u7406\u4e0d\u5f53\uff0c\u5e76\u53d1 I\/O \u64cd\u4f5c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u51b2\u7a81\u548c\u6570\u636e\u635f\u574f\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6570\u636e\u7684\u5b8c\u6574\u6027<\/strong>\uff1a\u786e\u4fdd I\/O \u64cd\u4f5c\u671f\u95f4\u7684\u6570\u636e\u5b8c\u6574\u6027\u5bf9\u4e8e\u9632\u6b62\u6570\u636e\u4e22\u5931\u6216\u635f\u574f\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\uff0c\u4f7f\u7528\u4e86\u5404\u79cd\u6280\u672f\u548c\u4f18\u5316\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u7f13\u5b58<\/strong>\uff1a\u7f13\u5b58\u7ecf\u5e38\u8bbf\u95ee\u7684\u6570\u636e\u53ef\u4ee5\u663e\u7740\u51cf\u5c11I\/O\u5ef6\u8fdf\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5f02\u6b65I\/O<\/strong>\uff1a\u5f02\u6b65\u64cd\u4f5c\u4f7f\u7cfb\u7edf\u80fd\u591f\u5728\u7b49\u5f85I\/O\u5b8c\u6210\u7684\u540c\u65f6\u6267\u884c\u5176\u4ed6\u4efb\u52a1\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u9519\u8bef\u5904\u7406<\/strong>\uff1a\u5f3a\u5927\u7684\u9519\u8bef\u5904\u7406\u548c\u6062\u590d\u673a\u5236\u6709\u52a9\u4e8e\u7ef4\u62a4\u6570\u636e\u5b8c\u6574\u6027\u3002<\/p>\n<\/li>\n<\/ul>\n<h2>\u4e3b\u8981\u7279\u70b9\u53ca\u4e0e\u540c\u7c7b\u672f\u8bed\u7684\u5176\u4ed6\u6bd4\u8f83<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u5b66\u671f<\/th>\n<th>\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u8f93\u5165<\/td>\n<td>\u6307\u7cfb\u7edf\u63a5\u6536\u7684\u6570\u636e\u6216\u547d\u4ee4\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u8f93\u51fa<\/td>\n<td>\u6307\u7cfb\u7edf\u53d1\u9001\u7684\u6570\u636e\u6216\u7ed3\u679c\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u8f93\u5165\/\u8f93\u51fa\uff08I\/O\uff09<\/td>\n<td>\u7cfb\u7edf\u548c\u5916\u90e8\u8bbe\u5907\u4e4b\u95f4\u7684\u6574\u4f53\u901a\u4fe1\u548c\u6570\u636e\u4f20\u8f93\u8303\u4f8b\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u541e\u5410\u91cf<\/td>\n<td>\u5728\u7ed9\u5b9a\u65f6\u95f4\u5185\u5904\u7406\u6216\u4f20\u8f93\u6570\u636e\u7684\u901f\u7387\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u5e26\u5bbd<\/td>\n<td>\u901a\u4fe1\u4fe1\u9053\u4f20\u8f93\u6570\u636e\u7684\u80fd\u529b\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u4e0e\u8f93\u5165\/\u8f93\u51fa (I\/O) \u76f8\u5173\u7684\u672a\u6765\u524d\u666f\u548c\u6280\u672f<\/h2>\n<p>\u968f\u7740\u6280\u672f\u7684\u8fdb\u6b65\uff0cI\/O \u7684\u672a\u6765\u524d\u666f\u5149\u660e\u3002\u4e00\u4e9b\u6f5c\u5728\u7684\u53d1\u5c55\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u66f4\u5feb\u7684 I\/O \u63a5\u53e3<\/strong>\uff1a\u4e0d\u65ad\u53d1\u5c55\u7684\u9ad8\u901f\u63a5\u53e3\uff08\u4f8b\u5982 PCIe \u548c Thunderbolt\uff09\u5c06\u5b9e\u73b0\u66f4\u5feb\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u975e\u6613\u5931\u6027\u5b58\u50a8\u5668\uff08NVM\uff09<\/strong>\uff1a3D XPoint \u548c MRAM \u7b49 NVM \u6280\u672f\u63d0\u4f9b\u66f4\u5feb\u3001\u66f4\u8010\u7528\u7684\u5b58\u50a8\u9009\u9879\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u57fa\u4e8e\u4e91\u7684 I\/O<\/strong>\uff1a\u4e91\u8ba1\u7b97\u5c06\u8fdb\u4e00\u6b65\u589e\u5f3aI\/O\u80fd\u529b\uff0c\u5b9e\u73b0\u65e0\u7f1d\u6570\u636e\u8bbf\u95ee\u548c\u5171\u4eab\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u7269\u8054\u7f51\u96c6\u6210<\/strong>\uff1a\u968f\u7740\u7269\u8054\u7f51 (IoT) \u7684\u53d1\u5c55\uff0cI\/O \u5c06\u5728\u8fde\u63a5\u548c\u7ba1\u7406\u6570\u5341\u4ebf\u8bbe\u5907\u65b9\u9762\u53d1\u6325\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u5982\u4f55\u4f7f\u7528\u4ee3\u7406\u670d\u52a1\u5668\u6216\u5982\u4f55\u5c06\u4ee3\u7406\u670d\u52a1\u5668\u4e0e\u8f93\u5165\/\u8f93\u51fa (I\/O) \u5173\u8054<\/h2>\n<p>\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u4e0e\u7f51\u7edc\u901a\u4fe1\u4e0a\u4e0b\u6587\u4e2d\u7684 I\/O \u7d27\u5bc6\u5173\u8054\u3002\u4ee3\u7406\u670d\u52a1\u5668\u5145\u5f53\u5ba2\u6237\u7aef\uff08\u7528\u6237\uff09\u548c\u4e92\u8054\u7f51\u4e4b\u95f4\u7684\u4e2d\u4ecb\u3002\u5b83\u4eec\u63a5\u6536\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u4f20\u5165\u8bf7\u6c42\uff0c\u5904\u7406\u4e0e\u5916\u90e8\u670d\u52a1\u5668\u7684\u901a\u4fe1\uff0c\u7136\u540e\u5c06\u7ed3\u679c\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002\u5728\u6b64\u8fc7\u7a0b\u4e2d\uff0c\u4ee3\u7406\u670d\u52a1\u5668\u5728\u7ba1\u7406\u4e0e\u7f51\u7edc\u6d41\u91cf\u76f8\u5173\u7684I\/O\u64cd\u4f5c\u65b9\u9762\u53d1\u6325\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002<\/p>\n<p>\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u63d0\u9ad8 I\/O \u6548\u7387\uff1a<\/p>\n<ul>\n<li>\n<p>\u7f13\u5b58\u9891\u7e41\u8bbf\u95ee\u7684\u8d44\u6e90\uff0c\u51cf\u5c11\u91cd\u590d\u7684 I\/O \u64cd\u4f5c\u3002<\/p>\n<\/li>\n<li>\n<p>\u7ba1\u7406\u548c\u4f18\u5316\u7f51\u7edc I\/O \u4ee5\u63d0\u9ad8\u6574\u4f53\u6027\u80fd\u3002<\/p>\n<\/li>\n<li>\n<p>\u901a\u8fc7\u8fc7\u6ee4\u548c\u68c0\u67e5\u4f20\u5165\u548c\u4f20\u51fa\u7684\u6570\u636e\u6765\u63d0\u4f9b\u989d\u5916\u7684\u5b89\u5168\u5c42\u3002<\/p>\n<\/li>\n<\/ul>\n<h2>\u76f8\u5173\u94fe\u63a5<\/h2>\n<p>\u6709\u5173\u8f93\u5165\/\u8f93\u51fa (I\/O) \u7684\u66f4\u591a\u4fe1\u606f\uff0c\u60a8\u53ef\u4ee5\u53c2\u8003\u4ee5\u4e0b\u8d44\u6e90\uff1a<\/p>\n<ol>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Input\/output\" target=\"_new\" rel=\"noopener nofollow\">\u7ef4\u57fa\u767e\u79d1 \u2013 \u8f93\u5165\/\u8f93\u51fa<\/a><\/li>\n<li><a href=\"https:\/\/www.geeksforgeeks.org\/input-output-i-o-basics\/\" target=\"_new\" rel=\"noopener nofollow\">GeeksforGeeks \u2013 \u8f93\u5165\/\u8f93\u51fa<\/a><\/li>\n<li><a href=\"https:\/\/developer.ibm.com\/technologies\/systems\/articles\/io-mechanism-os-fundamentals\/\" target=\"_new\" rel=\"noopener nofollow\">IBM Developer \u2013 \u4e86\u89e3\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u7684 I\/O<\/a><\/li>\n<\/ol>","protected":false},"featured_media":468637,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-477612","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Input\/Output (I\/O) - Understanding the Data Transfer Paradigm<\/mark>","faq_items":[{"question":"What is Input\/Output (I\/O)?","answer":"<p>Input\/Output (I\/O) refers to the communication and data transfer processes between a computer system and its external devices or networks. It enables interaction between users and the system and facilitates the exchange of information between hardware and software components.<\/p>"},{"question":"How did Input\/Output (I\/O) originate?","answer":"<p>The concept of I\/O dates back to the early days of computing when mainframe computers used punch cards and teletype terminals. It evolved as computers advanced, becoming a fundamental aspect of computing.<\/p>"},{"question":"How does Input\/Output (I\/O) work?","answer":"<p>I\/O involves two main processes: input and output. Input deals with data reception from external sources, while output sends data or results to external devices. It utilizes channels, buffers, interrupts, DMA, and I\/O scheduling for efficient operations.<\/p>"},{"question":"What are the key features of Input\/Output (I\/O)?","answer":"<p>The key features include bidirectionality, diversity of devices, impact on system performance, and robust error handling mechanisms.<\/p>"},{"question":"What are the types of Input\/Output (I\/O)?","answer":"<p>I\/O can be categorized into various types, such as serial, parallel, block, character, network, and memory-mapped I\/O.<\/p>"},{"question":"How is Input\/Output (I\/O) used and what are the associated problems?","answer":"<p>I\/O is used for user interaction, data storage, networking, and printing. Challenges include latency, concurrency, and data integrity. Solutions involve caching, asynchronous I\/O, and robust error handling.<\/p>"},{"question":"How does Input\/Output (I\/O) compare to similar terms?","answer":"<p>Input refers to received data or commands, while output denotes sent data or results. I\/O encompasses both aspects and is essential for data transfer.<\/p>"},{"question":"What are the future perspectives of Input\/Output (I\/O)?","answer":"<p>The future of I\/O looks promising with faster interfaces, non-volatile memory technologies, cloud-based I\/O, and integration with IoT.<\/p>"},{"question":"How are proxy servers associated with Input\/Output (I\/O)?","answer":"<p>Proxy servers act as intermediaries for network communication, managing I\/O operations related to traffic, caching, and network optimization.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/477612","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/477612\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media\/468637"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media?parent=477612"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}