12. The keyboard shortcut to toggle between anchored cells ($) and unanchored cells (no $) is: a. F4 b. Alt + F4 c. Ctrl + $ d. Alt + $

L={w∈{0,1}* | w starts with 1 and ends with 0}.  Its complement L’={w∈{0,1}* |  ________ }     w  starts with 0 and ends with 1     w  has length 0 or 1 or starts with 0 or ends with 1      w  starts with 1 or ends with 0     w  has length 0 and 1 and starts with 1 and ends with 0

Communication between character devices is often faster than that between block devices. Could you please tell me whether this statement is true or false?

According to the program below is there anything wrong ? 1         mov al,00 2         mov bl,12h 3         mov al,bl 4         mov dl,dx 5         int 10h   a   All looks ok   b  First line you can’t move nothing (00) into the al   c  The second line you can’t move the number 12h into the BL   d The third line you can’t move from the bl to the al   e  The fourth line you can’t move from the dx to the dl