Dell PowerEdge R805 Hardware Owner's Manual (PDF) - Page 186

Peripheral Component Interconnect. A standard for local-bus, Personal System/2. - virtualization server

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partition - You can divide a hard drive into multiple physical sections called partitions with the fdisk command. Each partition can contain multiple logical drives. You must format each logical drive with the format command. PCI - Peripheral Component Interconnect. A standard for local-bus implementation. PDU - Power distribution unit. A power source with multiple power outlets that provides electrical power to servers and storage systems in a rack. peripheral - An internal or external device, such as a diskette drive or keyboard, connected to a system. PGA - Pin grid array. A type of processor socket that allows you to remove the processor chip. pixel - A single point on a video display. Pixels are arranged in rows and columns to create an image. A video resolution, such as 640 x 480, is expressed as the number of pixels across by the number of pixels up and down. POST - Power-on self-test. Before the operating system loads when you turn on your system, the POST tests various system components such as RAM and hard drives. processor - The primary computational chip inside the system that controls the interpretation and execution of arithmetic and logic functions. Software written for one processor must usually be revised to run on another processor. CPU is a synonym for processor. protected mode - An operating mode that allows operating systems to implement: • A memory address space of 16 MB to 4 GB • Multitasking • Virtual memory, a method for increasing addressable memory by using the hard drive The Windows 2000 and UNIX 32-bit operating systems run in protected mode. MSDOS cannot run in protected mode. PS/2 - Personal System/2. PXE - Preboot eXecution Environment. A way of booting a system via a LAN (without a hard drive or bootable diskette). 186 Glossary

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186
Glossary
partition
— You can divide a hard drive into multiple physical sections called
partitions
with the
fdisk
command. Each partition can contain multiple logical drives.
You must format each logical drive with the
format
command.
PCI
— Peripheral Component Interconnect. A standard for local-bus
implementation.
PDU
— Power distribution unit. A power source with multiple power outlets that
provides electrical power to servers and storage systems in a rack.
peripheral
— An internal or external device, such as a diskette drive or keyboard,
connected to a system.
PGA
— Pin grid array. A type of processor socket that allows you to remove the
processor chip.
pixel
— A single point on a video display. Pixels are arranged in rows and columns to
create an image. A video resolution, such as 640 x 480, is expressed as the number of
pixels across by the number of pixels up and down.
POST
— Power-on self-test. Before the operating system loads when you turn on
your system, the POST tests various system components such as RAM and hard
drives.
processor
— The primary computational chip inside the system that controls the
interpretation and execution of arithmetic and logic functions. Software written for
one processor must usually be revised to run on another processor.
CPU
is a synonym
for processor.
protected mode
— An operating mode that allows operating systems to implement:
•
A memory address space of 16 MB to 4 GB
• Multitasking
•
Virtual memory, a method for increasing addressable memory by using the hard drive
The Windows 2000 and UNIX 32-bit operating systems run in protected mode. MS-
DOS cannot run in protected mode.
PS/2
— Personal System/2.
PXE
— Preboot eXecution Environment. A way of booting a system via a LAN
(without a hard drive or bootable diskette).