| 摘要 |
PURPOSE:To move a cursor by touching glopingly in looking at a display part and to fix easily the cursor at a necessary position, by providing a switch for cursor lock indication nearly in the center of a switch unit. CONSTITUTION:A circuit for controlling a cursor movement key is provided in a personal computer 1, and a CRT12, key 2, and cursor movement key unit 3 are provided externally. The circular cursor movement key 4 is arranged on this unit 3 and a cursor lock key 5 is arranged over a switch 7 for the cursor locking key nearly in the center of the key 4 and slidable upward and downward by being guided by the key 4 when the locking key 5 is pressed down. Then, when the position of the cursor 9 on the screen of the SRT12 is fixed, the lock key 5 is pressed, and a switch 7 senses the pressing to perform control on the CPU side of the main body 1, fixing the cursor 9 at a desired position easily. |
