Exercise 1.4

a. Input unit
b. Programming
c. Assembly language
d. Output Unit
e. ram + hdd/sdd
f. ALU
g. ALU
h. High level languages
i. Machine language
j. CPU

Exercise 1.5

a. C
b. C++

Exercise 1.6
a. Edit, preprocess, compiule, link, load, execute
b. IDE

Exercise 1.7
Watches function as an object, when you call on it you get the current time. Watches vary in specific attributes (one may have a different shape or style, or maybe added functionality such as a timer or stopwatch). Watches are fairly complicated and intricate things but most of that is hidden behind what is essentially a UI that just shows the user what they need to know.