Final answer:
The term 'typeface' refers to the general design of the lettering, while 'font' is a specific subset that includes style, size, and weight. Helvetica and Arial are typefaces, while Calibri bold and Times New Roman 10pt are fonts. Serifs are small lines at the end of strokes in letters, and the choice of serif or sans-serif typefaces can heavily influence a design's feel.
Step-by-step explanation:
The terms typeface and font are often used interchangeably, but they have different meanings. A typeface is the design of the lettering, which can include a variety of styles and weights (like bold or italic), but it refers to the general appearance of the characters. A font, on the other hand, is a specific subset of a typeface that includes not only the style but also the size and weight. For instance, Helvetica is a typeface, whereas Helvetica 12pt Bold is a font.
The items from the question can be identified as follows:
Helvetica - Typeface
Calibri bold - Font (assuming a size is specified, otherwise it's also a typeface)
Times New Roman 10pt - Font
Arial - Typeface
Helvetica italic - Typeface
Considering the descriptions provided, we observe different characteristics of typefaces like serif and sans-serif. Serif typefaces have a small line or stroke regularly attached to the end of a larger stroke in a letter, whereas sans-serif typefaces like Helvetica do not have these additional strokes. Typefaces can convey different feelings and associations, making them an essential choice in creating a corporate identity. The choice between modern sans-serif or classical serifed typefaces will contribute significantly to the visual impact of the text.