TRUE/FALSE 1. The BIOS data area includes the keyboard typeahead buffer. 2. The

Question

TRUE/FALSE

1.  The BIOS data area includes the keyboard typeahead buffer.

2. The BIOS data area includes the current video mode.

3. INT 16h permits characters to be redirected, so input can be read from a file.

4. When a key is pressed at the keyboard, the keyboard controller chip produces an 8-bit scan code and sends it to the keyboard port.

5.  The INT 8h service routine retrieves the keyboard scan code and looks up the corresponding ASCII code.

6. Keys stored in the keyboard typeahead buffer can only be retrieved by calling INT 16h.

7.  INT 16h provides a way to inspect the keyboard buffer without actually removing a key.

8. The fastest way to write characters to the video display is by calling INT 10h.

Explanation / Answer

1)True

2)True

3)False

4)True

5)False

6)False

7)True

8)False

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