What does AMR stand for?（）

单项选择题Athlon 64 and （）are examples of AMD processors that use the AMD64 architecture.

A.Xeon
B.Pentium
C.Celeron
D.Opteron

单项选择题The （）expansion slot provides faster video performance.

A.ISA
B.AGP
C.EISA
D.PCI

单项选择题Generally a hard disk drive has multiple disks, known as （）.

A.Cartridges
B.Spindle motors
C.Sectors
D.Platters

单项选择题In （） technology, two separate and complete processing units run in parallel on a Single chip.

A.Hyper-threading
B.Caching
C.Multi-tasking
D.Dual-core

单项选择题（）allows a laptop to connect to other devices such as monitor, printer, etc.

A.Docking station
B.Switch
C.Router
D.Hub