IC-601 9-3
9.1 Glossary
9
OS Abbreviation of Operating System. Basic software to control the com-
puter system. Windows, MacOS, and Unix are examples.
PDF Abbreviation of Portable Document Format. One of electronic docu-
ments (extension: .pdf). It is the format based on PostScript which can
be accessed using Adobe Reader, software free of charge.
ping Abbreviation of Packet INternet Groper. A command used to confirm the
communication situation with a distant device under the TCP/IP network
environment.
Pixel It is a pixcel. Minimum unit constituting images.
POP Abbreviation of Post Office Protocol. A protocol to receive electronic
mails from a mail server. Currently, POP3, version 3 of POP, is mainly
used.
Port number Number to distinguish each communication port of multiple processes
working in the computers on the network. A same port cannot be used
for multiple processes.
PostScript Representative page description language generally used for printing re-
quiring specifically high quality, developed by US Adobe.
Printer driver Software acting as an intermediate between the computer and printer.
Protocol Rules by which a computer communicates with other computer or pe-
ripheral device.
Resolution Degree how correctly the details of images or prints can be reproduced.
Router A device to connect networks and relay the transmission data.
Scan In the scanner reading operation, image is read by moving the image
sensors forming in line.
Single page TIFF TIFF file of one page only.
SMB Abbreviation of Server Message Block. A protocol used mainly to realize
sharing of files or printers through the network between Windows.
SMTP Abbreviation of Simple Mail Transfer Protocol. A protocol to transmit or
transfer the electronic mails.
SSL/TLS Abbreviation of Secure Socket Layer/Transport Layer Security.
TCP/IP Abbreviation of Transmission Control Protocol/Internet Protocol.
Thumb nail A function to indicate the contents of an image file or document file (im-
age when the file is opened) in a small area.
TIFF Abbreviation of Tagged Image File Format.
TWAIN Standard for the interface between the image input devices such a scan-
ner or digital camera and applications such as graphic software.
Uninstall To delete installed software.
Web browser Software to access web pages.
XPS Abbreviation of XML Paper Specification.
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