In: Business and Management

Submitted By SansanNguyen
Words 432
Pages 2
Mô Hình Cơ Sở Dữ Liệu Website I. Lịch Sử Ra Đời Ngày 6/8/1991 đã trở thành một mốc quan trọng khi những đường liên kết tới những dạng mã lệnh về www được đưa lên nhóm thảo luận alt.hypertext để những người khác có thể tải về và thử nghiệm nó. Và đó chính là ngày mà web phổ biến ra toàn thế giới.

Ông Jeff Groff, người đã cộng tác với ông Berners-Lee từ những ngày đầu, cho biết ý đồ phát sinh ra web là nhằm giúp "người dùng sẽ không còn phải đối mặt với những vấn đề kỹ thuật rắc rối nữa". Web chính là lớp phủ nhằm che dấu sự phức tạp ở bên dưới của những dữ liệu và tài liệu được phát sinh trên mạng Internet.

Ông Paul Kunz, một nhà khoa học tại Trung tâm Gia tốc tuyến tính Stanford, người đầu tiên thiết lập nên một máy chủ web ngoài châu Âu vào tháng 12-1991 cho biết, hồi đầu những năm 1990, ý tưởng về việc lấy được dữ liệu lưu trữ trên nhiều máy tính một cách đơn giản như vậy đã tỏ ra rất hấp dẫn.

Vào thời điểm đó, các máy tính là những hòn đảo về thông tin. Người dùng đăng nhập vào một hệ thống máy tính chỉ có thể truy cập được nguồn tài nguyên nằm trên chiếc máy tính đó. Khi chuyển sang chiếc máy tính khác có nghĩa là họ phải đăng nhập lại và có thể sẽ phải sử dụng một tập lệnh khác để tìm kiếm và thu thập dữ liệu.

Và web đã ngay lập tức thu hút sự quan tâm của ông Kunz ngay sau khi Tim Berners-Lee trình diễn khả năng truy vấn một cơ sở dữ liệu về những tài liệu vật lý được lưu trữ trên một máy chủ IBM. Ông nói: "Tôi biết rõ kết quả tìm kiếm sẽ được hiển thị như thế nào trên màn hình và kết quả được đưa ra trình duyệt web giống hệt như vậy". Máy chủ web mà ông Kunz thiết lập cho phép các nhà vật lý lục lọi trong số 200.000 bản tóm tắt dễ dàng hơn nhiều so với trước đó. Điều này đã chứng tỏ sự hữu ích đến mức các nhà khoa học tại viện Cern đã nhanh chóng chuyển sang tìm kiếm dữ…...

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