AMT Datasouth Fastmark M1 Guia do Utilizador descarregar pdf (Página 203)

Definitions

Term Definition

Code Pages

A code page, or character set, defines a collection of characters,

numbers, punctuation, symbols, and special characters for a particular

language. Using a process called encoding, each character in the code

page is assigned a numeric value called a code point. Computer

hardware, software, and operating systems can then exchange

information for a particular language or for a collection of languages

using these code points.

DBCS

Double Byte Character Set. DBCS pages may be a mixture of single

byte and double byte characters.

Double byte

Double byte is usually used in reference to a character set which

supports more than 256 characters. Consisting of 16 bits, two bytes

(or octets) can support numbers ranging from 0 (zero) to 65,535, i.e.

65,536 unique numeric values.

Glyph

A glyph is a representation of a character. The character “Capital Letter

A” is represented by the glyph “A” in Tempus Sans ITC Bold. A font is a

collection of glyphs.

Little Endian

Refers to which bytes are most significant in multi-byte data types. In

Little-Endian architectures, the rightmost bytes are most significant.

Swapping integer data between computers of different types (see Big

Endian) is a difficult problem unless you convert the information into

ASCII characters. Most modern computers, including computers, use

the Little-Endian system.

Natural Language

A natural language is a term to describe the various human languages

spoken on the planet.

OEM Code Pages

The term OEM code page refers to code pages used in MS-DOS that

have built-in hardware support to allow rapid display of characters on

the computer console. The first 128 characters in OEM code pages are

defined by the ASCII standard.

Octet

Also known as a byte, an octet consists of 8 bits, and can represent

numeric values ranging from 0 (zero) to 255.

RAM

Random Access Memory, a type of computer memory that can be

accessed randomly; that is, any byte of memory can be accessed

without touching the preceding bytes. RAM is the most common type

of memory found in computers.

ROM

Read Only Memory, computer memory on which data has been

prerecorded. Unlike main memory (RAM), ROM retains its contents

even when the computer is turned off. Fonts are often stored in ROMs.

Simplified Chinese

The Chinese ideographic writing system as used in the People’s

Republic of China and Singapore.

Single byte

Single byte is usually used in reference to a character set, which

supports a maximum of 256 characters.Consisting of 8 bits, one byte

(or octet) can support numbers ranging from 0 (zero) to 255, i.e. 256

unique numeric values.

Symbol Set A set of glyphs.

TrueType format

Originally devised by Apple Computers and later extended by

Microsoft, TrueType is a font format, which can support a large

number (max 65,536) of characters.

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