Which is a characteristic of a PGA package?

Question

A- 2 main types
B- Seldom used today
C- Inserted into sockets
D- Inserted into slots


I'll admit this is a homework question but i've looked everywhere and can't find anything on PGA packages. Please help me.

PGA (pin grid array) category is computer hardware

Answer 1

Oh come on, it is right here:
http://en.wikipedia.org/wiki/Pin_grid_array

Answer 2

C: Inserted Into Sockets.

On a PGA, the integrated circuit (IC) is mounted in a ceramic slab of which one face is covered, or partially covered, in a square array of metal pins. The pins can then be inserted into the holes in a printed circuit board and soldered in place. They are almost always spaced 2.54 mm (a tenth of an inch) apart. For a given number of pins, this type of package occupies less space than older types such as the dual in-line package (DIL or DIP).
http://en.wikipedia.org/wiki/Pin_grid_array