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Appendix-31
Subnet Mask
The subnet mask is a way of augmenting the network address section of an IP address. A subnet mask
represents all network address sections as 1 and all host address sections as 0. The number of bits in the prefix
indicates the length of the network address. The term "prefix" refers to something added to the beginning and,
in this context, indicates the first section of the IP address. When an IP address is written, the length of the
network address can indicated by the prefix length after a forward slash (/). For example, "24" in the address
"133.210.2.0/24". In this way, "133.210.2.0/24" denotes the IP address "133.210.2.0" with a 24-bit prefix
(network section). This new network address section (originally part of the host address) made possible by the
subnet mask is referred to as the subnet address.When you enter the subnet mask, be sure to set the DHCP
setting to Off.
TCP/IP (Transmission Control Protocol/Internet Protocol)
TCP/IP is a suite of protocols designed to define the way computers and other devices communicate with each
other over a network.
TCP/IP (IPv6)
TCP/IP (IPv6) is based on the current Internet protocol, TCP/IP (IPv4). IPv6 is the next-generation Internet
protocol and expands the available address space, which resolves the problem of the lack of addresses under
IPv4, while also introducing other improvements such as additional security functionality and the capacity to
prioritize data transmission.
TWAIN (Technology Without Any Interested Name)
A technical specification for connecting scanners, digital cameras, and other image equipment to the
computers. The TWAIN compatible devices enable to process image data on any relevant application software.
TWAIN is adopted on a large number of graphic software (e.g. Adobe Photoshop) and OCR software.
USB (Universal Serial Bus)2.0
A USB interface standard for Hi-Speed USB 2.0. The maximum transfer rate is 480 Mbps. This machine is
equipped with USB 2.0 for high-speed data transfer.
WIA (Windows Imaging Acquisition)
A function to import images supported after Windows Me/XP from digital cameras and other peripheral
devices.This function replaces what TWAIN used to do; the feature is provided as a part of Windows functions
and improves ease of operation, so that you import images directly to My Computer without using any
application.