Information technology — Portable Operating System Interface (POSIX) — Part 2: Shell and Utilities
This part of ISO/IEC 9945 defines a standard source-code-level interface to command interpretation, or "shell," services and common utility programs for applica- tion programs. These services and programs are complementary to those specified by ISO/IEC 9945-1: 1990 (IEEE Std 1003.1-1990) {8}, hereinafter referred to as "POSIX.1 {8}." When the User Portability Utilities Option…
Information technology — 8 mm wide magnetic tape cartridge dual azimuth format for information inter...
This International Standard specifies the physical and magnetic characteristics of an 8 mm wide magnetic tape cartridge to enable interchangeability of such cartridges. It also specifies the quality of the recorded signals, the format and the recording method, thus allowing, together with ISO 1001 for Magnetic Tape Labelling, full data interchange by means of such magnetic tape cartridges. It is…
Information technology — 3,81 mm wide magnetic tape cartridge for information interchange — Helical ...
This International Standard specifies the physical and magnetic characteristics of a 3,81 mm wide magnetic tape cartridge to enable interchangeability of such cartridges. It also specifies the quality of the recorded signals, the recorded format and the recording method, thereby allowing data interchange between drives by means of such magnetic tape cartridges. The format used is known as DATA/…
Information technology — Data Interchange on 12,7 mm, 48-track magnetic tape cartridges — DLT 1 form...
This International Standard specifies the physical and magnetic characteristics of a 12,7 mm wide, 48-track magnetic tape cartridge, to enable interchangeability of such cartridges. It also specifies the quality of the recorded signals, a format — called Digital Linear Tape 1 (DLT 1) — and a recording method. Together with a labelling standard, e.g. ISO 1001, it allows full data interchange by…
Information technology — Data interchange on 130 mm optical disk cartridges — Capacity: 1,3 gigabyte...
This International Standard specifies
- the conditions for conformance testing;
- the environments in which the cartridges are to be operated and stored;
- the mechanical, physical and dimensional characteristics of the case and of the cartridges, so as to provide mechanical interchangeability between the data processing systems;
- the format of the information on the disk, both embossed and user…
Information technology — Data interchange on 130 mm optical disk cartridges — Capacity: 1 gigabyte p...
Specifies two implementations: Type R/W (data to be written, read and erased many times) and type WO (having write once, read multiple functionality). Specifies the conditions for conformance testing and the reference drive; the environments in which the cartridges are to be operated and stored; the mechanical, physical and dimensional characteristics of the case and of the cartridge; the format…
Non-broadcast video tape recorders - Methods of measurement - Part 3: Audio characteristics for FM r...
Concerns the measurement of overall characteristics of the FM audio recorded using slanted tracks similar to those used for recording of the video information. The main characteristics of such a recording system are two channels high fidelity and the use of companders for noise reduction.
Magnétoscopes hors radiodiffusion - Méthodes de mesure - Partie 3: Caractéristiques audio pour l...
Concerne la mesure de toutes les caractéristiques de l'audio enregistrée en MF utilisant les pistes inclinées similaires à celles utilisées pour enregistrer l'information vidéo. Les principales caractéristiques d'un tel système d'enregistrement sont: deux voies, la haute fidélité et l'utilisation de compresseurs pour réduire le bruit.
Limits and methods of measurement of radio disturbance characteristics of information technology equ...
Establishes uniform requirements for the radio disturbance level of the equipment contained in the scope, to fix limits of disturbance, to describe methods of measurement and to standardize operating conditions and interpretation of results.
Limites et méthodes de mesure des caractéristiques de perturbations radioélectriques produites par l...
L'objet de la présente norme est d'établir des exigences uniformes pour les limites des perturbations radioélectriques des appareils relevant du domaine d'application, de fixer des limites pour le niveau perturbateur, de décrire des méthodes de mesure et de normaliser les conditions de fonctionnement et l'interprétation des résultats.