1. Bàn phím máy tính

a. Bàn phím máy tính là gì?

– Bàn phím được chia làm 5 khu vực:

  • Khu vực chính: là khu vực có nhiều phím nhất, nằm bên trái của bàn phím.
  • Khu vực các phím mũi tên: gồm các phím \rightarrow,\leftarrow,\uparrow,\downarrow,,,
  • Khu vực các phím điều khiển: nằm ngay phía trên khu vực các phím mũi tên.
  • Khu vực phím số: nằm bên phải của bàn phím.
  • Khu vực các phím chức năng: gồm các phím F1, F2…

b. Khu vực chính của bàn phím

– Gồm 5 hàng phím:

  • Hàng phím số: nằm ở vị trí đầu tiên.
  • Hàng phím trên: nằm phía trên hàng cơ sở.
  • Hàng phím cơ sở: nằm ở vị trí thứ 3 từ dưới lên.
  • Hàng phím dưới: nằm phía dưới hàng cơ sở.
  • Hàng phím cách: là hàng cuối cùng của bàn phím

– 2 phím có gai: F và J nằm trên hàng cơ sở. Đây là 2 phím dùng làm vị trí đặt 2 ngón tay trỏ.

– 8 phím chính trên hàng cơ sở được gọi là các phím xuất phát.

c. Các phím khác

– Bao gồm các phím điều khiển, phím đặc biệt như:

  • Spacebar: Phím cách, dùng để tạo khoảng trống giữa các kí tự.
  • Caps Lock: Dùng để viết hoa.
  • Tab: Lùi vào đầu dòng khi soạn thảo văn bản.
  • Enter: xuống dòng.
  • Backspace: xoá các kí tự nằm bên trái con trỏ soạn thảo.
  • Delete: xóa các kí tự nằm bên phải con trỏ soạn thảo.

– Ngoài ra còn có 1 số phím khác như: Ctrl, Alt, Shift,…

2. Ích lợi của việc gõ bàn phím bằng mười ngón

– Trước kia, con người dùng máy chữ để tạo ra các văn bản trên giấy, được thực hiện trên một bàn phím tương tự như bàn phím máy tính hiện nay.

– Gõ bàn phím bằng 10 ngón tay sẽ có các lợi ích:

  • Tốc độ gõ nhanh hơn.
  • Gõ chính xác hơn.
  • Tạo cho người dùng tác phong làm việc chuyên nghiệp với máy tính.

3. Tư thế ngồi

– Ngồi thẳng lưng, đầu thẳng, không ngửa ra sau hay cúi về phía trước.

– Mắt nhìn thẳng vào màn hình, không được hướng lên trên.

– Bàn phím ở vị trí trung tâm, 2 tay để thả lỏng trên bàn phím.

4. Luyện tập

a. Cách đặt tay và gõ phím

– Đặt các ngón tay lên hàng phím cơ sở.

– Nhìn thẳng vào màn hình, không nhìn xuống bàn phím.

– Gõ phím nhẹ nhưng dứt khoát.

– Mỗi ngón tay chỉ gõ 1 số phím nhất định.

303 BÌNH LUẬN

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