Character encodingCharacter encoding is a convention of using a numeric value to represent each character of a writing script. Not only can a character set include natural languagesymbols, but it can also include codes that have meanings or functions outside of language, such as control characters and whitespace. Character encodings have also been defined for some constructed languages. When encoded, character data can be stored, transmitted, and transformed by a computer.
Binary-to-text encodingRepresentation of binary data as text A binary-to-text encoding is a data encoding scheme that represents binary data as plain text. Generally, the binary data consists of a sequence of arbitrary 8-bit byte (a.k.a. octet) values and the text is restricted to the printable character codes of commonly-used character encodings such as ASCII.
Uuencodinguuencoding is a form of binary-to-text encoding that originated in the Unix programs uuencode and uudecode written by Mary Ann Horton at the University of California, Berkeley in 1980, for encodingbinary data for transmission in email systems.
8-bit cleanIn computer networking, a system is 8-bit clean if it processes 8-bitcharacter encodings without altering the high bit or treating any byte as an in-band control code. This property can describe both a communications protocol and the software and devices that implement such protocols. Although many early email systems only supported 7-bit data, the vast majority of modern email systems are 8-bit clean.Graphic characterA graphic character, also known as a printing character or a printable character, is a grapheme intended to be rendered in a form that can be read by a human. In other words, it is any encoded character that is associated with one or more glyphs. (It is thus distinct from a control character, one that is acted upon and not displayed.)Binary dataBinary data is data whose unit can take on only two possible states. These are often labelled as 0 and 1 in accordance with the binary numeral system and Boolean algebra. Binary data occurs in many different technical and scientific fields, where it can be called by different names including bit (binary digit) in computer science, truth value in mathematical logic and related domains and binary variable in statistics.BinHexBinHex, originally short for "binary-to-hexadecimal", is a binary-to-text encoding system which was used on the classic Mac OS for sending binary files over email. BinHexed files take up more space than the original files, but avoid data corruption by software that is not 8-bit clean.
Operating systemAn operating system (OS) is system software that manages computer hardware and software resources, and provides common services for computer programs. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, peripherals, and other resources.
TRS-80The TRS-80 Micro Computer System (TRS-80, colloquially known as the "Trash-80", later renamed the TRS-80 Model I to distinguish it from its successors) is a desktop microcomputer developed by American company Tandy Corporation and sold through their Radio Shack stores. Launched in 1977, it is one of the earliest mass-produced and mass-marketed retail home computers. The name is derived from Tandy Radio Shack Z80, referring to its Zilog Z80 8-bit microprocessor.
UnixUnix ( , YOO-niks; trademarked as UNIX) is a family of multitasking, multi-user computer operating systems that derive from the original AT&T Unix, the development of which started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.
Communication channelA communication channel refers either to a physical transmission medium such as a wire, or to a logical connection over a multiplexed medium such as a radio channel in telecommunications and computer networking. A channel is used for information transfer of, for example, a digital bit stream, from one or several senders to one or several receivers.
Bit numberingIn computing, bit numbering is the convention used to identify the bit positions in a binary number. The bits can be those in a memorybyte or word, or those of an internal CPUregister or data bus. Bit significance and indexing In computing, the least significant bit (LSb) is the bit position in a binaryinteger representing the lowest-order place of the integer. Similarly, the most significant bit (MSb) represents the highest-order place of the binary integer.*As an Amazon Associate I earn from qualifying purchases.