作为一种新颖的数据管理技术，超文本提供了一种与传统数据库不同的沿链路访问数据的新方法。

在数据管理技术发展过程中,文件系统与数据库系统的主要区别是数据库系统具有 ()。A.特定的数据模

下面哪个不是文件管理数据阶段的特点（ ）。

世界上第一台电子数字计算机ENIAC是真空管计算机。 The world's first electronic digital computer, ENIAC, was a vacuum tube computer. (True or Flase)

中国第四代计算机包括1977年航天部陕西骊山微电子公司，采用大规模集成电路的成功研制16位微型计算机-77型机。 China's fourth generation of computers included the space ministry in 1977, shaanxi lishan microelectronics company, which successfully developed the 16-bit microcomputer model 77 using large-scale integrated circuits. (True or Flase)

GB18030-2000标准字符收录了26 484个汉字与字符，涵盖中文简体和繁体、日文、韩文、中国少数民族文字。 Gb18030-2000 standard characters include 26 484 Chinese characters and characters, including simplified Chinese and traditional Chinese, Japanese, Korean, Chinese minority languages. (True or Flase)

GB2312也称BG2312-80，后者是为了纪念1980年确定的全称为《信息交换用汉字编码字符集•基本集》而命名的。 GB2312 also known as bg2312-80, the latter is to commemorate the 1980 determination of the full called "information for the exchange of Chinese characters coded character set • basic set" named. (True or Flase)

光缆、电缆、微波和红外无线链路及其交换设备，属于传输媒体。 Optical cables, cables, microwave and infrared wireless links and their switching equipment belong to the transmission media. (True or Flase)

大五码，即BIG5，收录了13 053个中文字与字符，不含简体字。 Big five, or BIG5, contains 13 053 Chinese characters and characters, without simplified characters. (True or Flase)

1957年国际电报电话咨询委员会将媒体分为五类：_________________________ In 1957 the international telegraph and telephone advisory committee divided the media into five categories

多媒体包括两个方面：其一是__________________________________________；其二是____________________________。 Multimedia includes two aspects: one is the ______________________________; The other is ______________________________.