Special K 
Old Italian bread LIRE
Mug imperfections ZITS (I was thinking cups)
Theme: Placing a silent K in front of a term or phrase changes its meaning
Tough handicap to overcome in a joust? KNIGHTBLINDNESS
Hoopster featured in a news magazine? KNICKOFTIME
Was familiar with England? KNEWENGLAND
Bow tied by mortal hands? KNOTOFTHISWORLD
Aside from the references to our computer world, there are a few that are retro:
Gave a buzz RANG
Mineo of “Rebel Without a Cause” SAL
Pinup Hayworth RITA
Jerk NIMROD
Naval attire PEACOAT
“I didn’t need to know that!” TMI [pu]
RATING:
Three grins = Excellent: Loved it; Two grins = Good: Enjoyed it; One grin = Satisfactory: A bit bland for my taste; One teardrop = Unsatisfying: No fun
