A character-based operating system uses all of the following EXCEPT a ________

A) mouse B) hard drive C) keyboard D) monitor


A

Computer Science & Information Technology

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You must always ____ a variable before you can use it for the first time in a program.

A. declare B. reference C. instantiate D. announce

Computer Science & Information Technology

________ indexes place marked entries and subentries on separate lines with spacing before each indexed item

A) Indented B) Run-in C) Cross-referenced D) Table

Computer Science & Information Technology

In what capacity would a BNC connector be used in relation to a PC?

A) Audio B) Mouse/keyboard connectivity C) Video D) Peripheral sharing

Computer Science & Information Technology

What is wrong with the following enqueue algorithm?Algorithm enqueue (queue, dataIn)   allocate (new node)   move dataIn to new node data   set new node next to null pointer   if (empty queue)      set queue front to address of new data   else      set next pointer of rear node to address of new node   end if   set queue rear to address of new node   increment queue count   return trueend enqueue

A. It does not test if the queue is empty. B. It does not test if the queue is full. C. It does not display error messages. D. The next pointer of rear node should be set to null.

Computer Science & Information Technology