CIS71, Section 4
FIVE MINUTE TEST #1
September 5, 2006




(5)	1. What is a microsecond? a terabyte?






(5)	2. How many instructions are executed per second
           on your usual PC?







(5)	3. What is a compiler and what does it do?








(5)	4. Here are some possible identifiers. Indicate which is legal
	   and which is not:
		jane 	x2 	j_2	x-y 	i.g	3sam 	s13x





(5)	5. A byte consists of 8 bits. How many different values can be 
	   represented with a byte?