pc

Word family

• personal computer
  nounA2
• politically correct
  adjectiveC1
• political correctness
  nounC1

Synonym discussion

Sense: noun/1

'PC' is a short everyday label for a personal computer, but its exact range depends on context. 'Computer' is broader and can cover desktops, laptops, and other machines. 'Desktop' is narrower: it means a non-portable computer that usually stays on a desk. 'Laptop' is also a personal computer, but it highlights portability, battery power, and a folding screen. 'Mac' names Apple's line of computers, so it often appears as the contrast word when people say 'PC or Mac'. Because of that contrast, 'PC' sometimes suggests a Windows-type machine, though in other contexts it simply means any personal computer. You might say 'The hotel has a PC in the lobby', but 'I packed my laptop for the train'.

Etymology

PC is not one old inherited word. It is a modern initialism built from the first letters of longer English expressions. The computer sense comes from 'personal computer', a term that became widespread when single-user home and office machines grew common in the late twentieth century. The British police sense shortens 'police constable', an established rank name. The adjective sense shortens 'politically correct', a phrase that became widely discussed in public debate in the later twentieth century. So the shared spelling joins several separate abbreviations rather than one continuous historical meaning.