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PC Hardware Terminology Reference: O

 
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OS
Also known as:
operating system
An operating system is the software responsible for controlling the hardware devices in a computer and managing other software applications. In modern setups, only the operating system has direct control over hardware such as disk drives and system memory, while providing managed access to other software applications on the system. Some of the most important jobs of an OS is to schedule tasks, enable multi-tasking, and allocate memory to tasks.
overclocking
Also known as:
OC,
OC-ing
To overclock means to run a microprocessor at a higher clock rate than intended by the manufacturer. This can lead to performance boosts. At the same time, it can lead to overheating, logical errors, and bottlenecking. Overclocking can sometimes lead to permanent damage of hardware components if users are not careful.
adapter
AGP
API
BIOS
Cat-5
chipset
compiler
CPU
DDR
Ethernet
GDDR
heat sink
kernel
L1 cache
L2 cache
LCD
LED
Li-ion
motherboard
NIC
NTFS
OS
overclocking
PC Card
PCI
RAID
RAM
RJ-11
RJ-45
ROM
SCSI
SD card
Serial ATA
sound card
video card