Asus P4S133 - Manual (Page 115)

ASUS P4S133 motherboard user guide 95
I/O (Input/Output)
The data transfers from the input devices like a keyboard, mouse, or scanner, to the
output devices like a printer or the monitor screen.
I/O Address
The specific memory location for a particular device. Two devices cannot share the
same I/O address space.
IrDA (Infrared Data Association)
An internaltional organization that creates and promotes inter-operable, low cost,
infrared data interconnection standards that support a walk-up, point-to-point model.
The IrDA protocol is designed to support transmission of data between two devices over
short-range point-to-point infrared at speeds between 9.6Kbps and 4Mbps.
ISP (Internet Service Provider)
A company that provides customer access to the Internet and the World Wide Web for a
fee. The ISP also provides Internet utilities and services like e-mail, newsgroup,
weather reports, and a host of others. The user can connect to the ISP using a modem
installed in the computer and connected to a phone line.
LPT Port (Line Printer Port)
Logical device name reserved by DOS for the computer parallel ports. Each LPT port is
configured to use a different IRQ and address assignment.
MMX
A set of 57 new instructions designed to accelerate multimedia and communications
applications, such as 3D video, 3D sound, video conference.
Modem
A device that allows a computer to talk to another computer through the phone system.
Network
An interconnected computer system linked by telephone wires, or other means.
OnNow
The OnNow design initiative is a comprehensive, system-wide approach to system and
device power control. OnNow is a term for PC that is always ON but appears OFF and
responds immediately to user or other requests. The OnNow design initiative involves
changes that will occur in the Microsoft Windows operating system, device drivers,
hardware, and applications, and also relies on the changes defined in the Advanced
Configuration and Power Interface (ACPI) specification.
PC100/133
This is an industry-standard designation for memory capacity as a measure of the
speed of the memory bus. New platform requirements ensure that memory does not
become a bottleneck to system performance.
PCI Bus (Peripheral Component Interconnect Local Bus)
PCI bus is a standard specification that defines a 32-bit data bus interface.
PCI Bus Master
The PCI Bus Master can perform data transfer without local CPU help and the CPU can
be treated as one of the Bus Masters. PCI 2.1 supports concurrent PCI operation to
allow the local CPU and bus master to work simultaneously.
POST (Power On Self Test)
Powering on the computer initiates the POST, a series of software-controlled diagnostic
tests. The POST checks system memory, the motherboard circuitry, the display, the
keyboard, the diskette drive, and other I/O devices.
PS/2 Port
PS/2 ports are based on IBM Micro Channel Architecture. This type of architecture
transfers data through a 16-bit or 32-bit bus. A PS/2 mouse and/or keyboard may be
used on ATX motherboards.