{"id":476993,"date":"2023-08-09T09:06:01","date_gmt":"2023-08-09T09:06:01","guid":{"rendered":""},"modified":"2023-09-05T11:13:48","modified_gmt":"2023-09-05T11:13:48","slug":"dram","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/dram\/","title":{"rendered":"\u30c9\u30e9\u30e0"},"content":{"rendered":"<p>\u30c0\u30a4\u30ca\u30df\u30c3\u30af \u30e9\u30f3\u30c0\u30e0 \u30a2\u30af\u30bb\u30b9 \u30e1\u30e2\u30ea (DRAM) \u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3084\u305d\u306e\u4ed6\u306e\u96fb\u5b50\u30c7\u30d0\u30a4\u30b9\u3067\u4e00\u6642\u7684\u306a\u30c7\u30fc\u30bf\u4fdd\u5b58\u7528\u306b\u4f7f\u7528\u3055\u308c\u308b\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u306e\u4e00\u7a2e\u3067\u3059\u3002\u30c7\u30fc\u30bf\u3078\u306e\u8fc5\u901f\u306a\u30a2\u30af\u30bb\u30b9\u304c\u53ef\u80fd\u306b\u306a\u308b\u305f\u3081\u3001\u30c7\u30fc\u30bf\u306f\u73fe\u4ee3\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0 \u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002 DRAM \u306f\u3001\u30d1\u30fc\u30bd\u30ca\u30eb \u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3001\u30b5\u30fc\u30d0\u30fc\u3001\u30e2\u30d0\u30a4\u30eb \u30c7\u30d0\u30a4\u30b9\u3001\u304a\u3088\u3073\u9ad8\u901f\u304b\u3064\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf \u30a2\u30af\u30bb\u30b9\u304c\u4e0d\u53ef\u6b20\u306a\u305d\u306e\u4ed6\u306e\u591a\u304f\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>DRAM\u306e\u8d77\u6e90\u3068\u305d\u306e\u59cb\u307e\u308a\u306e\u6b74\u53f2<\/h2>\n<p>DRAM \u306e\u958b\u767a\u306f\u3001\u7814\u7a76\u8005\u304c\u5f53\u6642\u306e\u4e3b\u8981\u306a\u30e1\u30e2\u30ea\u6280\u8853\u3067\u3042\u3063\u305f\u78c1\u6c17\u30b3\u30a2 \u30e1\u30e2\u30ea\u306e\u4ee3\u66ff\u54c1\u3092\u63a2\u7d22\u3057\u59cb\u3081\u305f 1960 \u5e74\u4ee3\u306b\u9061\u308a\u307e\u3059\u3002 1966 \u5e74\u3001IBM \u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30ed\u30d0\u30fc\u30c8 \u30c7\u30ca\u30fc\u30c9\u535a\u58eb\u306f\u30c0\u30a4\u30ca\u30df\u30c3\u30af \u30e1\u30e2\u30ea \u30bb\u30eb\u306e\u6982\u5ff5\u3092\u5c0e\u5165\u3057\u3001DRAM \u306e\u5275\u9020\u3078\u306e\u9053\u3092\u5207\u308a\u958b\u304d\u307e\u3057\u305f\u3002\u6700\u521d\u306e\u5b9f\u7528\u7684\u306a DRAM \u30c1\u30c3\u30d7\u306f\u30011968 \u5e74\u306b IBM \u306e\u30c7\u30ca\u30fc\u30c9\u535a\u58eb\u3068\u5f7c\u306e\u30c1\u30fc\u30e0\u306b\u3088\u3063\u3066\u767a\u660e\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<h2>DRAM \u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002 DRAM \u306e\u30c8\u30d4\u30c3\u30af\u3092\u62e1\u5f35\u3059\u308b<\/h2>\n<p>DRAM \u306f\u3001\u30c7\u30fc\u30bf\u306e\u4fdd\u5b58\u3068\u30a2\u30af\u30bb\u30b9\u3092\u884c\u3046\u30b3\u30f3\u30c7\u30f3\u30b5\u306e\u539f\u7406\u306b\u57fa\u3065\u3044\u3066\u52d5\u4f5c\u3057\u307e\u3059\u3002\u5404 DRAM \u30bb\u30eb\u306f\u30b3\u30f3\u30c7\u30f3\u30b5\u3068\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002\u30b3\u30f3\u30c7\u30f3\u30b5\u306f\u3001\u30d0\u30a4\u30ca\u30ea\u5024 (0 \u307e\u305f\u306f 1) \u3092\u8868\u3059\u96fb\u8377\u3092\u84c4\u7a4d\u3057\u307e\u3059\u3002\u4e00\u65b9\u3001\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306f\u3001\u30b3\u30f3\u30c7\u30f3\u30b5\u306b\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u66f8\u304d\u3059\u308b\u305f\u3081\u306e\u96fb\u8377\u306e\u6d41\u308c\u3092\u5236\u5fa1\u3059\u308b\u30b2\u30fc\u30c8\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002<\/p>\n<p>\u30d5\u30ea\u30c3\u30d7\u30d5\u30ed\u30c3\u30d7\u3092\u4f7f\u7528\u3057\u3066\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3059\u308b\u30b9\u30bf\u30c6\u30a3\u30c3\u30af RAM (SRAM) \u3068\u306f\u7570\u306a\u308a\u3001DRAM \u306f\u4fdd\u5b58\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u7d99\u7d9a\u7684\u306b\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u3067\u3059\u3002\u30b3\u30f3\u30c7\u30f3\u30b5\u306b\u84c4\u7a4d\u3055\u308c\u305f\u96fb\u8377\u306f\u5f90\u3005\u306b\u6f0f\u6d29\u3059\u308b\u305f\u3081\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u5b9a\u671f\u7684\u306a\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5 \u30b5\u30a4\u30af\u30eb\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002 DRAM \u306f\u52d5\u7684\u306a\u6027\u8cea\u3092\u6301\u3063\u3066\u3044\u308b\u305f\u3081\u3001SRAM \u306b\u6bd4\u3079\u3066\u9ad8\u5bc6\u5ea6\u5316\u3068\u4f4e\u30b3\u30b9\u30c8\u5316\u304c\u53ef\u80fd\u3067\u3059\u304c\u3001\u30a2\u30af\u30bb\u30b9\u6642\u9593\u3082\u9577\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>DRAM\u306e\u5185\u90e8\u69cb\u9020\u3002 DRAM \u306e\u4ed5\u7d44\u307f<\/h2>\n<p>DRAM \u306e\u5185\u90e8\u69cb\u9020\u306f\u3001\u30e1\u30e2\u30ea \u30a2\u30ec\u30a4\u3068\u5468\u8fba\u56de\u8def\u306e 2 \u3064\u306e\u4e3b\u8981\u306a\u90e8\u5206\u306b\u5206\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u30e1\u30e2\u30ea\u914d\u5217:<\/h3>\n<ul>\n<li>\u30e1\u30e2\u30ea \u30a2\u30ec\u30a4\u306f\u3001\u884c\u3068\u5217\u306b\u7de8\u6210\u3055\u308c\u305f DRAM \u30bb\u30eb\u306e\u30b0\u30ea\u30c3\u30c9\u3067\u3059\u3002<\/li>\n<li>\u884c\u3068\u5217\u306e\u5404\u4ea4\u5dee\u70b9\u304c\u5358\u4e00\u306e\u30e1\u30e2\u30ea \u30bb\u30eb\u3092\u5f62\u6210\u3057\u307e\u3059\u3002<\/li>\n<li>\u884c\u306f\u30ef\u30fc\u30c9\u7dda\u3068\u547c\u3070\u308c\u3001\u5217\u306f\u30d3\u30c3\u30c8\u7dda\u3068\u547c\u3070\u308c\u307e\u3059\u3002<\/li>\n<li>\u5404\u30bb\u30eb\u306e\u30b3\u30f3\u30c7\u30f3\u30b5\u306f\u3001\u30c7\u30fc\u30bf\u3092\u8868\u3059\u96fb\u8377\u3092\u4fdd\u6301\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3>\u5468\u8fba\u56de\u8def:<\/h3>\n<ul>\n<li>\u5468\u8fba\u56de\u8def\u306f\u3001\u30c7\u30fc\u30bf \u30a2\u30af\u30bb\u30b9\u3068\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u52d5\u4f5c\u306e\u5236\u5fa1\u3092\u62c5\u5f53\u3057\u307e\u3059\u3002<\/li>\n<li>\u3053\u308c\u306b\u306f\u3001\u884c\u30c7\u30b3\u30fc\u30c0\u3001\u5217\u30c7\u30b3\u30fc\u30c0\u3001\u30bb\u30f3\u30b9\u30a2\u30f3\u30d7\u3001\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u56de\u8def\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/li>\n<li>\u884c\u30c7\u30b3\u30fc\u30c0\u306f\u3001\u30c7\u30fc\u30bf\u306e\u8aad\u307f\u53d6\u308a\u307e\u305f\u306f\u66f8\u304d\u8fbc\u307f\u306e\u305f\u3081\u306b\u7279\u5b9a\u306e\u884c\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/li>\n<li>\u5217\u30c7\u30b3\u30fc\u30c0\u306f\u3001\u7279\u5b9a\u306e\u30bb\u30eb\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u305f\u3081\u306b\u9069\u5207\u306a\u30d3\u30c3\u30c8 \u30e9\u30a4\u30f3\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/li>\n<li>\u30bb\u30f3\u30b9\u30a2\u30f3\u30d7\u306f\u3001DRAM \u30bb\u30eb\u304b\u3089\u306e\u5fae\u5f31\u306a\u4fe1\u53f7\u3092\u5897\u5e45\u3057\u3066\u3001\u6b63\u78ba\u306a\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002<\/li>\n<li>\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u56de\u8def\u306f\u3001\u30b3\u30f3\u30c7\u30f3\u30b5\u306b\u30c7\u30fc\u30bf\u3092\u5b9a\u671f\u7684\u306b\u518d\u66f8\u304d\u8fbc\u307f\u3059\u308b\u3053\u3068\u3067\u30c7\u30fc\u30bf\u306e\u5b8c\u5168\u6027\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>DRAM \u306e\u4e3b\u8981\u306a\u6a5f\u80fd\u306e\u5206\u6790<\/h2>\n<p>DRAM \u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u9069\u3057\u305f\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u6a5f\u80fd\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30b9\u30d4\u30fc\u30c9\uff1a<\/strong> DRAM \u306f\u3001\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af \u30c9\u30e9\u30a4\u30d6 (HDD) \u3084\u30bd\u30ea\u30c3\u30c9 \u30b9\u30c6\u30fc\u30c8 \u30c9\u30e9\u30a4\u30d6 (SSD) \u306a\u3069\u306e\u4e0d\u63ee\u767a\u6027\u30e1\u30e2\u30ea \u30bf\u30a4\u30d7\u3088\u308a\u3082\u9ad8\u901f\u3067\u3059\u3002\u30c7\u30fc\u30bf\u3078\u306e\u8fc5\u901f\u306a\u30e9\u30f3\u30c0\u30e0 \u30a2\u30af\u30bb\u30b9\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u51e6\u7406\u6642\u9593\u304c\u77ed\u7e2e\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30dc\u30e9\u30c6\u30a3\u30ea\u30c6\u30a3:<\/strong> DRAM \u306f\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u3067\u3059\u3002\u3064\u307e\u308a\u3001\u30c7\u30fc\u30bf\u3092\u4fdd\u6301\u3059\u308b\u306b\u306f\u4e00\u5b9a\u306e\u96fb\u6e90\u304c\u5fc5\u8981\u3067\u3059\u3002\u96fb\u6e90\u304c\u5931\u308f\u308c\u308b\u3068\u3001DRAM \u306b\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u306f\u6d88\u53bb\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5bc6\u5ea6\uff1a<\/strong> DRAM \u306f\u9ad8\u3044\u30e1\u30e2\u30ea\u5bc6\u5ea6\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u6bd4\u8f03\u7684\u5c0f\u3055\u306a\u7269\u7406\u30b9\u30da\u30fc\u30b9\u306b\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8cbb\u7528\u5bfe\u52b9\u679c\uff1a<\/strong> DRAM \u306f\u3001\u30bb\u30eb\u69cb\u9020\u304c\u5358\u7d14\u3067\u3042\u308b\u305f\u3081\u3001\u30b9\u30bf\u30c6\u30a3\u30c3\u30af RAM (SRAM) \u306b\u6bd4\u3079\u3066\u30b3\u30b9\u30c8\u52b9\u7387\u304c\u9ad8\u304f\u3001\u5927\u5bb9\u91cf\u30e1\u30e2\u30ea \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u52d5\u7684\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5:<\/strong> DRAM \u306f\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u5b9a\u671f\u7684\u306a\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3092\u5fc5\u8981\u3068\u3059\u308b\u305f\u3081\u3001\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u4e0d\u53ef\u80fd\u306a\u30e1\u30e2\u30ea \u30c6\u30af\u30ce\u30ed\u30b8\u3068\u6bd4\u8f03\u3057\u3066\u5168\u4f53\u7684\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>DRAM\u306e\u7a2e\u985e<\/h2>\n<p>DRAM \u306f\u9577\u5e74\u306b\u308f\u305f\u3063\u3066\u9032\u5316\u3057\u3066\u304a\u308a\u3001\u7570\u306a\u308b\u7279\u6027\u3092\u5099\u3048\u305f\u3044\u304f\u3064\u304b\u306e\u30bf\u30a4\u30d7\u304c\u958b\u767a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4e00\u822c\u7684\u306a DRAM \u306e\u7a2e\u985e\u3092\u3044\u304f\u3064\u304b\u793a\u3057\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u30bf\u30a4\u30d7<\/th>\n<th>\u8aac\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30b7\u30f3\u30af\u30ed\u30ca\u30b9 DRAM (SDRAM)<\/td>\n<td>\u30b7\u30b9\u30c6\u30e0\u30af\u30ed\u30c3\u30af\u3068\u540c\u671f\u3057\u3001\u3088\u308a\u9ad8\u901f\u306a\u30c7\u30fc\u30bf\u30a2\u30af\u30bb\u30b9\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u30c0\u30d6\u30eb\u30c7\u30fc\u30bf\u30ec\u30fc\u30c8 (DDR) SDRAM<\/td>\n<td>\u30af\u30ed\u30c3\u30af\u4fe1\u53f7\u306e\u7acb\u3061\u4e0a\u304c\u308a\u30a8\u30c3\u30b8\u3068\u7acb\u3061\u4e0b\u304c\u308a\u30a8\u30c3\u30b8\u306e\u4e21\u65b9\u3067\u30c7\u30fc\u30bf\u3092\u8ee2\u9001\u3057\u3001SDRAM \u3068\u6bd4\u8f03\u3057\u3066\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u3092\u52b9\u679c\u7684\u306b 2 \u500d\u306b\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>DDR2 SDRAM<\/td>\n<td>DDR SDRAM \u3092\u6539\u826f\u3057\u3001\u3088\u308a\u9ad8\u3044\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u3068\u4f4e\u3044\u6d88\u8cbb\u96fb\u529b\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>DDR3 SDRAM<\/td>\n<td>DDR2 \u3068\u6bd4\u8f03\u3057\u3066\u9ad8\u901f\u5316\u3068\u4f4e\u96fb\u5727\u8981\u4ef6\u306b\u3088\u308b\u3055\u3089\u306a\u308b\u9032\u6b69\u3002<\/td>\n<\/tr>\n<tr>\n<td>DDR4 SDRAM<\/td>\n<td>DDR3 \u3068\u6bd4\u8f03\u3057\u3066\u3001\u3088\u308a\u9ad8\u3044\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u3001\u3088\u308a\u4f4e\u3044\u6d88\u8cbb\u96fb\u529b\u3001\u304a\u3088\u3073\u3088\u308a\u5927\u304d\u306a\u5bb9\u91cf\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>DDR5 SDRAM<\/td>\n<td>\u6700\u65b0\u4e16\u4ee3\u3067\u306f\u3001\u3055\u3089\u306b\u9ad8\u3044\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u3001\u52b9\u7387\u306e\u5411\u4e0a\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>DRAM\u306e\u4f7f\u3044\u65b9\u3068\u4f7f\u7528\u4e0a\u306e\u554f\u984c\u70b9\u3068\u305d\u306e\u89e3\u6c7a\u65b9\u6cd5<\/h2>\n<h3>DRAM \u306e\u4f7f\u7528\u65b9\u6cd5:<\/h3>\n<ol>\n<li>\n<p><strong>\u30e1\u30a4\u30f3\u30e1\u30e2\u30ea:<\/strong> DRAM \u306f\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3084\u30c7\u30d0\u30a4\u30b9\u306e\u30e1\u30a4\u30f3 \u30e1\u30e2\u30ea\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001CPU \u304c\u30a2\u30af\u30c6\u30a3\u30d6\u306b\u4f7f\u7528\u3059\u308b\u30c7\u30fc\u30bf\u3068\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\uff1a<\/strong> DRAM \u306f\u3001\u983b\u7e41\u306b\u30a2\u30af\u30bb\u30b9\u3055\u308c\u308b\u30c7\u30fc\u30bf\u3092\u4e00\u6642\u7684\u306b\u4fdd\u5b58\u3057\u3066\u9ad8\u901f\u306b\u53d6\u5f97\u3059\u308b\u305f\u3081\u306e\u30ad\u30e3\u30c3\u30b7\u30e5 \u30e1\u30e2\u30ea\u3068\u3057\u3066\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u51e6\u7406:<\/strong> \u9ad8\u6027\u80fd\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u30b9 \u30ab\u30fc\u30c9\u306f\u3001\u5c02\u7528\u306e GDDR (\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u30b9 \u30c0\u30d6\u30eb \u30c7\u30fc\u30bf \u30ec\u30fc\u30c8) DRAM \u3092\u4f7f\u7528\u3057\u3066\u30b0\u30e9\u30d5\u30a3\u30c3\u30af \u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u7d44\u307f\u8fbc\u307f\u30b7\u30b9\u30c6\u30e0\uff1a<\/strong> DRAM \u306f\u7d44\u307f\u8fbc\u307f\u30b7\u30b9\u30c6\u30e0\u3067\u4f7f\u7528\u3055\u308c\u3001\u3055\u307e\u3056\u307e\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u4e00\u6642\u8a18\u61b6\u57df\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h3>DRAM \u306e\u4f7f\u7528\u306b\u95a2\u9023\u3059\u308b\u554f\u984c\u3068\u89e3\u6c7a\u7b56:<\/h3>\n<ol>\n<li>\n<p><strong>\u6d88\u8cbb\u96fb\u529b\uff1a<\/strong> DRAM \u306f\u5927\u91cf\u306e\u96fb\u529b\u3092\u6d88\u8cbb\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u767a\u71b1\u306e\u5897\u52a0\u3068\u30a8\u30cd\u30eb\u30ae\u30fc\u30b3\u30b9\u30c8\u306e\u5897\u52a0\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u30e1\u30fc\u30ab\u30fc\u306f\u3001\u65b0\u4e16\u4ee3\u306e DRAM \u306e\u6d88\u8cbb\u96fb\u529b\u306e\u524a\u6e1b\u306b\u7d99\u7d9a\u7684\u306b\u53d6\u308a\u7d44\u3093\u3067\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u3068\u30a2\u30af\u30bb\u30b9\u6642\u9593:<\/strong> DRAM \u306e\u30a2\u30af\u30bb\u30b9\u6642\u9593\u306f SRAM \u306b\u6bd4\u3079\u3066\u9577\u304f\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u554f\u984c\u3092\u8efd\u6e1b\u3059\u308b\u305f\u3081\u306b\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u6280\u8853\u3068\u6539\u826f\u3055\u308c\u305f\u30e1\u30e2\u30ea \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30c7\u30fc\u30bf\u306e\u4fdd\u6301\u3068\u66f4\u65b0:<\/strong> DRAM \u306e\u52d5\u7684\u306a\u6027\u8cea\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u983b\u7e41\u306a\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5 \u30b5\u30a4\u30af\u30eb\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u9ad8\u5ea6\u306a\u30a8\u30e9\u30fc\u8a02\u6b63\u30b3\u30fc\u30c9\u3068\u30e1\u30e2\u30ea \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306f\u3001\u6f5c\u5728\u7684\u306a\u30c7\u30fc\u30bf\u4fdd\u6301\u306e\u554f\u984c\u306b\u5bfe\u51e6\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5bc6\u5ea6\u5236\u9650:<\/strong> DRAM \u306e\u5bc6\u5ea6\u304c\u5897\u52a0\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u88fd\u9020\u4e0a\u306e\u8ab2\u984c\u304c\u751f\u3058\u3001\u6f5c\u5728\u7684\u306a\u6b20\u9665\u3084\u6b69\u7559\u307e\u308a\u306e\u4f4e\u4e0b\u304c\u751f\u3058\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u5236\u9650\u3092\u514b\u670d\u3059\u308b\u305f\u3081\u306b\u3001\u6700\u5148\u7aef\u306e\u30ea\u30bd\u30b0\u30e9\u30d5\u30a3\u30fc\u304a\u3088\u3073\u88fd\u9020\u6280\u8853\u304c\u63a1\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u4e3b\u306a\u7279\u5fb4\u3068\u985e\u4f3c\u7528\u8a9e\u3068\u306e\u6bd4\u8f03<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u7279\u6027<\/th>\n<th>\u8aac\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>DRAM \u5bfe SRAM<\/td>\n<td>DRAM \u306f\u30b3\u30b9\u30c8\u52b9\u7387\u304c\u9ad8\u304f\u3001\u9ad8\u5bc6\u5ea6\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u4e00\u65b9\u3001SRAM \u306f\u9ad8\u901f\u3067\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u306e\u5fc5\u8981\u304c\u3042\u308a\u307e\u305b\u3093\u3002<\/td>\n<\/tr>\n<tr>\n<td>DRAM \u5bfe \u30d5\u30e9\u30c3\u30b7\u30e5 \u30e1\u30e2\u30ea<\/td>\n<td>DRAM \u306f\u63ee\u767a\u6027\u3067\u3042\u308a\u3001\u3088\u308a\u9ad8\u901f\u306a\u30a2\u30af\u30bb\u30b9\u3092\u63d0\u4f9b\u3057\u307e\u3059\u304c\u3001\u96fb\u6e90\u304c\u5207\u65ad\u3055\u308c\u308b\u3068\u30c7\u30fc\u30bf\u306f\u5931\u308f\u308c\u307e\u3059\u3002\u30d5\u30e9\u30c3\u30b7\u30e5 \u30e1\u30e2\u30ea\u306f\u4e0d\u63ee\u767a\u6027\u3067\u3059\u304c\u3001\u6bd4\u8f03\u3059\u308b\u3068\u4f4e\u901f\u3067\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>DRAM \u3068 HDD\/SSD \u306e\u6bd4\u8f03<\/td>\n<td>DRAM \u306f\u3001\u5f93\u6765\u306e\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af \u30c9\u30e9\u30a4\u30d6 (HDD) \u3084\u30bd\u30ea\u30c3\u30c9 \u30b9\u30c6\u30fc\u30c8 \u30c9\u30e9\u30a4\u30d6 (SSD) \u3088\u308a\u3082\u5927\u5e45\u306b\u9ad8\u901f\u306a\u30c7\u30fc\u30bf \u30a2\u30af\u30bb\u30b9\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u4fa1\u683c\u304c\u9ad8\u304f\u3001\u30b9\u30c8\u30ec\u30fc\u30b8\u5bb9\u91cf\u304c\u5c11\u306a\u3044\u3067\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>DRAM\u306e\u672a\u6765\u3078\u306e\u5c55\u671b\u3068\u6280\u8853<\/h2>\n<p>\u6280\u8853\u306e\u9032\u6b69\u306b\u4f34\u3044\u3001DRAM \u306e\u9650\u754c\u306b\u5bfe\u51e6\u3059\u308b\u7d99\u7d9a\u7684\u306a\u53d6\u308a\u7d44\u307f\u306b\u3088\u308a\u3001DRAM \u306e\u5c06\u6765\u306f\u6709\u671b\u306b\u898b\u3048\u307e\u3059\u3002\u6f5c\u5728\u7684\u306a\u9032\u6b69\u3068\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306b\u306f\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u6b21\u4e16\u4ee3 DRAM:<\/strong> DDR6 \u4ee5\u964d\u306a\u3069\u306e DDR \u898f\u683c\u306e\u7d99\u7d9a\u7684\u306a\u958b\u767a\u306b\u3088\u308a\u3001\u3055\u3089\u306b\u9ad8\u3044\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u3068\u3088\u308a\u4f4e\u3044\u6d88\u8cbb\u96fb\u529b\u304c\u5b9f\u73fe\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>3D\u30b9\u30bf\u30c3\u30ad\u30f3\u30b0:<\/strong> 3D \u30b9\u30bf\u30c3\u30ad\u30f3\u30b0\u6280\u8853\u306e\u5b9f\u88c5\u306b\u3088\u308a DRAM \u5bc6\u5ea6\u304c\u5411\u4e0a\u3057\u3001\u3088\u308a\u5c0f\u3055\u306a\u30d5\u30a9\u30fc\u30e0\u30d5\u30a1\u30af\u30bf\u30fc\u3067\u3088\u308a\u5927\u304d\u306a\u5bb9\u91cf\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u4e0d\u63ee\u767a\u6027 DRAM:<\/strong> \u7814\u7a76\u8005\u3089\u306f\u3001DRAM \u306e\u901f\u5ea6\u3068 NAND \u30d5\u30e9\u30c3\u30b7\u30e5 \u30e1\u30e2\u30ea\u306e\u30c7\u30fc\u30bf\u6c38\u7d9a\u6027\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3001DRAM \u3092\u4e0d\u63ee\u767a\u6027\u306b\u3059\u308b\u65b9\u6cd5\u3092\u6a21\u7d22\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u65b0\u305f\u306a\u30e1\u30e2\u30ea\u6280\u8853:<\/strong> \u62b5\u6297\u6027 RAM (ReRAM) \u3084\u76f8\u5909\u5316\u30e1\u30e2\u30ea (PCM) \u306a\u3069\u306e\u65b0\u3057\u3044\u30e1\u30e2\u30ea \u30c6\u30af\u30ce\u30ed\u30b8\u306f\u3001\u901f\u5ea6\u3068\u4e0d\u63ee\u767a\u6027\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u63d0\u4f9b\u3057\u3001DRAM \u306e\u4ee3\u66ff\u3068\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306e\u4f7f\u7528\u65b9\u6cd5\u307e\u305f\u306f DRAM \u3068\u306e\u95a2\u9023\u4ed8\u3051\u65b9\u6cd5<\/h2>\n<p>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8 \u30c7\u30d0\u30a4\u30b9\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u9593\u306e\u4ef2\u4ecb\u8005\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002 DRAM \u306f\u3001\u983b\u7e41\u306b\u8981\u6c42\u3055\u308c\u308b\u30c7\u30fc\u30bf\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u305f\u3081\u306b\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3067\u5229\u7528\u3055\u308c\u3001\u30ea\u30e2\u30fc\u30c8 \u30b5\u30fc\u30d0\u30fc\u304b\u3089\u540c\u3058\u60c5\u5831\u3092\u7e70\u308a\u8fd4\u3057\u30d5\u30a7\u30c3\u30c1\u3059\u308b\u5fc5\u8981\u6027\u3092\u6e1b\u3089\u3057\u307e\u3059\u3002\u3053\u306e\u30c7\u30fc\u30bf\u3092 DRAM \u306b\u4fdd\u5b58\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u5fdc\u7b54\u6642\u9593\u3068\u5168\u4f53\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3055\u3089\u306b\u3001DRAM \u306e\u30a2\u30af\u30bb\u30b9\u901f\u5ea6\u304c\u901f\u3044\u305f\u3081\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u8907\u6570\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u8981\u6c42\u3092\u540c\u6642\u306b\u52b9\u7387\u7684\u306b\u51e6\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n<p>DRAM \u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001\u6b21\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ol>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Dynamic_random-access_memory\" target=\"_new\" rel=\"noopener nofollow\">\u30a6\u30a3\u30ad\u30da\u30c7\u30a3\u30a2 \u2013 \u30c0\u30a4\u30ca\u30df\u30c3\u30af \u30e9\u30f3\u30c0\u30e0 \u30a2\u30af\u30bb\u30b9 \u30e1\u30e2\u30ea (DRAM)<\/a><\/li>\n<li><a href=\"https:\/\/www.intel.com\/content\/www\/us\/en\/products\/docs\/memory-storage\/solid-state-drives\/optane-dc-ssd\/understanding-dram-operation.html\" target=\"_new\" rel=\"noopener nofollow\">\u30a4\u30f3\u30c6\u30eb \u2013 DRAM \u306e\u52d5\u4f5c\u3092\u7406\u89e3\u3059\u308b<\/a><\/li>\n<li><a href=\"https:\/\/www.micron.com\/products\/dram\" target=\"_new\" rel=\"noopener nofollow\">Micron \u2013 DRAM \u88fd\u54c1\u60c5\u5831<\/a><\/li>\n<li><a href=\"https:\/\/www.samsung.com\/semiconductor\/dram\/\" target=\"_new\" rel=\"noopener nofollow\">Samsung Semiconductor \u2013 DRAM \u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3<\/a><\/li>\n<\/ol>","protected":false},"featured_media":468276,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476993","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Dynamic Random-Access Memory (DRAM) - A Comprehensive Overview<\/mark>","faq_items":[{"question":"What is DRAM, and why is it important?","answer":"<p><strong>Answer:<\/strong> DRAM, short for Dynamic Random-Access Memory, is a type of volatile memory used in computers and electronic devices for temporary data storage. It allows fast access to data, making it essential for smooth performance in modern computing systems.<\/p>"},{"question":"How did DRAM originate, and who invented it?","answer":"<p><strong>Answer:<\/strong> The concept of DRAM was introduced in the 1960s as researchers sought alternatives to magnetic core memory. Dr. Robert Dennard and his team at IBM invented the first practical DRAM chip in 1968, revolutionizing memory technology.<\/p>"},{"question":"How does DRAM work, and what makes it different from SRAM?","answer":"<p><strong>Answer:<\/strong> DRAM stores data using capacitors, while SRAM uses flip-flops. The dynamic nature of DRAM requires regular refreshing to maintain data integrity, making it more cost-effective and higher in density than SRAM but with slightly higher access times.<\/p>"},{"question":"What are the key features of DRAM, and why is it widely used?","answer":"<p><strong>Answer:<\/strong> DRAM offers speed, high density, and cost-effectiveness, making it a preferred choice for main memory in computers and devices. It allows quick access to data and efficient storage, critical for modern computing needs.<\/p>"},{"question":"What types of DRAM exist, and how do they differ?","answer":"<p><strong>Answer:<\/strong> There are several types of DRAM, including SDRAM, DDR, DDR2, DDR3, DDR4, and DDR5. Each generation offers improved data transfer rates, lower power consumption, and increased capacity compared to its predecessors.<\/p>"},{"question":"How is DRAM used in proxy servers, and what benefits does it provide?","answer":"<p><strong>Answer:<\/strong> DRAM is used in proxy servers to cache frequently requested data, reducing the need to fetch it from remote servers repeatedly. This caching enhances response times and overall network performance, optimizing user experience.<\/p>"},{"question":"What are some challenges related to DRAM use, and how are they addressed?","answer":"<p><strong>Answer:<\/strong> DRAM can consume significant power, leading to heat generation and energy costs. Latency and access times can also be higher than SRAM. However, manufacturers continuously work on reducing power consumption, improving memory controllers, and implementing advanced error correction codes to ensure data integrity.<\/p>"},{"question":"What does the future hold for DRAM technology?","answer":"<p><strong>Answer:<\/strong> The future of DRAM looks promising with advancements in DDR standards, 3D stacking technology for increased density, and the possibility of non-volatile DRAM. Emerging memory technologies like ReRAM and PCM may also offer new alternatives with a balance of speed and non-volatility.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476993","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476993\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/468276"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=476993"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}