PRINTERS LOW SPEED
HIGH SPEED
W
LINE
Y
IMPACT
X
IMPACT
NON-IMPACT
z
State TWO examples of character impact printers.
(2 mks)
(i)
Det matrix
printers
(ii) Daisy wheel printers
Identify W, X, Y and Z.
X
W
Z
Y
(4 mk
In the table below, outline FOUR differences between impact and non-impact printers.
Non-impact Printers

Write a program called assignment3 (saved in a file assignment3.java) that computes the greatest common divisor of two given integers. one of the oldest numerical algorithms was described by the greek mathematician, euclid, in 300 b. c. it is a simple but very e↵ective algorithm that computes the greatest common divisor of two given integers. for instance, given integers 24 and 18, the greatest common divisor is 6, because 6 is the largest integer that divides evenly into both 24 and 18. we will denote the greatest common divisor of x and y as gcd(x, y). the algorithm is based on the clever idea that the gcd(x, y) = gcd(x ! y, y) if x > = y and gcd(x, y) = gcd(x, y ! x) if x < y. the algorithm consists of a series of steps (loop iterations) where the “larger” integer is replaced by the di↵erence of the larger and smaller integer. this continues until the two values are equal. that is then the gcd.

Which of the following statements tests if students have a grade of 70 or above, as well as fewer than five absences? a: if(grade > = 70 and daysabsent < = 5): b: if(grade > = 70 or daysabsent < = 5): c: if(grade > 70 and daysabsent < = 5): d: if(grade > 70 or daysabsent < = 5): i took the test the answer is a

Why should characters such as / \ " ' * ; - ? [ ] ( ) ~ ! $ { } < > # @ & | space, tab, and newline be avoided in file names?