Information Technology Assignment:I/O Devices
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DATARMOR and New Tools.Pdf
JOURNÉE DE RENCONTRE DES UTILISATEURS DU PÔLE DE CALCUL INTENSIF POUR LA MER PIERRE COTTY Le programme de la journée • 9 h 40 - 12 h 10 DATARMOR: nouveau périmètre, nouvelles perspectives • Pause déjeuner : buffet • 14 h 00 - 16 h 30 DATARMOR: nouveaux champs d'applications scientifiques • Poster et Discussions autour d’un pot 17/05/2018 2 DATARMOR AND N E W T O O L S Tina ODAKA DATARMOR 17/05/2018 4 ACCES CLIENTS (10 Gigabit Ethernet connected to IFREMER and INFUSER network (SHOM / IUEM / ENSTA Bretagne Cluster HPC 426 Tflops 11 088 cores 396 Nodes Login nodes PBS Pro; sharing computing Batch system: resources PBS Pro InfiniBand FDR 17/05/2018 5 DATARMOR: not only HPC Cluster SMP Cluster Cluster HPC VIS High speed Cluster SCRATCH Network WEB Infini Band DATA DATAREF HOME DATA 17/05/2018 WORK 6 DISK • DATAREF (LUSTRE, 1.5PB = 1395TiB) • Reference data (next presentation) • DATAWORK (GPFS, 5PB = 4500TiB) • Work data • User space and project space • SCRATCH (LUSTRE 0.5PB) PB ? TiB?? • Scratch file for HPCcomparisons computation. with International System of Units (SI) prefixes • 15 days max one kibibit 1 Kibit = 210 bit = 1024 bit one kilobit 1 kbit = 103 bit = 1000 bit • DATAHOME (NFS, 0.04PB)one mebibyte 1 MiB = (210)2 B = 1 048 576 B • Source codes and softwaresone megabyte 1 MB = (103)2 B = 1 000 000 B • with backup ( tape, inone a gibibytedifferent1 GiBbuilding= (210)3 B) = 1 073 741 824 B one gigabyte 1 GB = (103)3 B = 1 000 000 000 B byte = octet( French) TiB (tebibyte) = Tio (French tébioctet) 17/05/2018 7 Clustre WEB, SMP, VIS • Cluster SMP • 1 node with 240 cores, 5 TB RAM • PBS Pro • Jobs only for huge memory, or many CPU cores. -
Etir Code Lists
eTIR Code Lists Code lists CL01 Equipment size and type description code (UN/EDIFACT 8155) Code specifying the size and type of equipment. 1 Dime coated tank A tank coated with dime. 2 Epoxy coated tank A tank coated with epoxy. 6 Pressurized tank A tank capable of holding pressurized goods. 7 Refrigerated tank A tank capable of keeping goods refrigerated. 9 Stainless steel tank A tank made of stainless steel. 10 Nonworking reefer container 40 ft A 40 foot refrigerated container that is not actively controlling temperature of the product. 12 Europallet 80 x 120 cm. 13 Scandinavian pallet 100 x 120 cm. 14 Trailer Non self-propelled vehicle designed for the carriage of cargo so that it can be towed by a motor vehicle. 15 Nonworking reefer container 20 ft A 20 foot refrigerated container that is not actively controlling temperature of the product. 16 Exchangeable pallet Standard pallet exchangeable following international convention. 17 Semi-trailer Non self propelled vehicle without front wheels designed for the carriage of cargo and provided with a kingpin. 18 Tank container 20 feet A tank container with a length of 20 feet. 19 Tank container 30 feet A tank container with a length of 30 feet. 20 Tank container 40 feet A tank container with a length of 40 feet. 21 Container IC 20 feet A container owned by InterContainer, a European railway subsidiary, with a length of 20 feet. 22 Container IC 30 feet A container owned by InterContainer, a European railway subsidiary, with a length of 30 feet. 23 Container IC 40 feet A container owned by InterContainer, a European railway subsidiary, with a length of 40 feet. -
Course Conventions Fall 2016
CS168 Computer Networks Fonseca Course Conventions Fall 2016 Contents 1 Introduction 1 2 RFC Terms 1 3 Data Sizes 2 1 Introduction This document covers conventions that will be used throughout the course. 2 RFC Terms For the project specifications in this class, we’ll be using proper RFC terminology. It’s the terminology you’ll see if you ever implement protocols in the real world (e.g., IMAP or MCTCP), so it’s good to get exposed to it now. In particular, we’ll be using the keywords “MUST”, “MUST NOT”, “REQUIRED”, “SHALL”, “SHALL NOT”, “SHOULD”, “SHOULD NOT”, “RECOMMENDED”, “MAY”, and “OPTIONAL” as defined in RFC 2119. The terms we’ll use the most in this class are “MUST”, “MUST NOT”, “SHOULD”, “SHOULD NOT”, and “MAY” (though we may use others occasionally), so we’re including their definitions here for convenience (copied verbatim from the RFC): • MUST This word, or the terms “REQUIRED” or “SHALL”, mean that the definition is an absolute requirement of the specification. • MUST NOT This word, or the phrase “SHALL NOT”, mean that the definition is an absolute prohibition of the specification. • SHOULD This word, or the adjective “RECOMMENDED”, mean that there may exist valid reasons in particular circumstances to ignore a particular item, but the full implications must be understood and carefully weighed before choosing a different course. • SHOULD NOT This phrase, or the phrase “NOT RECOMMENDED”, mean that there may exist valid reasons in particular circumstances when the particular behavior is acceptable or even useful, but the full implications should be understood and the case carefully weighed before implementing any behavior described with this label. -
Bitmath Documentation Release 1.3.3
bitmath Documentation Release 1.3.3 Tim Bielawa Sep 13, 2018 Contents 1 Installation 3 2 Contents 5 2.1 The bitmath Module..........................................5 2.2 The bitmath command-line Tool................................... 19 2.3 Classes.................................................. 20 2.4 Instances................................................. 23 2.5 Getting Started.............................................. 29 2.6 Real Life Examples........................................... 32 2.7 Contributing to bitmath......................................... 41 2.8 Appendices................................................ 45 2.9 NEWS.................................................. 51 2.10 Contact.................................................. 56 2.11 Copyright................................................. 57 2.12 Examples................................................. 57 Python Module Index 63 i ii bitmath Documentation, Release 1.3.3 bitmath simplifies many facets of interacting with file sizes in various units. Originally focusing on file size unit conversion, functionality now includes: • Converting between SI and NIST prefix units (kB to GiB) • Converting between units of the same type (SI to SI, or NIST to NIST) • Automatic human-readable prefix selection (like in hurry.filesize) • Basic arithmetic operations (subtracting 42KiB from 50GiB) • Rich comparison operations (1024 Bytes == 1KiB) • bitwise operations (<<, >>, &, |, ^) • Reading a device’s storage capacity (Linux/OS X support only) • argparse integration as -
Prefixes for Binary Multiples
Definitions of the SI units: The binary prefixes Page 1 of 3 Return to Prefixes for binary multiples Units home page In December 1998 the International Electrotechnical Commission (IEC), the leading international organization for worldwide Units standardization in electrotechnology, approved as an IEC Topics: International Standard names and symbols for prefixes for binary Introduction multiples for use in the fields of data processing and data Units transmission. The prefixes are as follows: Prefixes Outside Prefixes for binary multiples Rules Background Factor Name Symbol Origin Derivation 210 kibi Ki kilobinary: (210)1 kilo: (103)1 Units 220 mebi Mi megabinary: (210)2 mega: (103)2 Bibliography 230 gibi Gi gigabinary: (210)3 giga: (103)3 Constants, 240 tebi Ti terabinary: (210)4 tera: (103)4 Units & 50 pebi Pi 10 5 3 5 Uncertainty 2 petabinary: (2 ) peta: (10 ) home page 260 exbi Ei exabinary: (210)6 exa: (103)6 Examples and comparisons with SI prefixes one kibibit 1 Kibit = 210 bit = 1024 bit one kilobit 1 kbit = 103 bit = 1000 bit one mebibyte 1 MiB = 220 B = 1 048 576 B one megabyte 1 MB = 106 B = 1 000 000 B one gibibyte 1 GiB = 230 B = 1 073 741 824 B one gigabyte 1 GB = 109 B = 1 000 000 000 B It is suggested that in English, the first syllable of the name of the binary-multiple prefix should be pronounced in the same way as the first syllable of the name of the corresponding SI prefix, and that the second syllable should be pronounced as "bee." It is important to recognize that the new prefixes for binary multiples are not part of the International System of Units (SI), the modern metric system. -
The 2016 SNIA Dictionary
A glossary of storage networking data, and information management terminology SNIA acknowledges and thanks its Voting Member Companies: Cisco Cryptsoft DDN Dell EMC Evaluator Group Fujitsu Hitachi HP Huawei IBM Intel Lenovo Macrosan Micron Microsoft NetApp Oracle Pure Storage Qlogic Samsung Toshiba Voting members as of 5.23.16 Storage Networking Industry Association Your Connection Is Here Welcome to the Storage Networking Industry Association (SNIA). Our mission is to lead the storage industry worldwide in developing and promoting standards, technologies, and educational services to empower organizations in the management of information. Made up of member companies spanning the global storage market, the SNIA connects the IT industry with end-to-end storage and information management solutions. From vendors, to channel partners, to end users, SNIA members are dedicated to providing the industry with a high level of knowledge exchange and thought leadership. An important part of our work is to deliver vendor-neutral and technology-agnostic information to the storage and data management industry to drive the advancement of IT technologies, standards, and education programs for all IT professionals. For more information visit: www.snia.org The Storage Networking Industry Association 4360 ArrowsWest Drive Colorado Springs, Colorado 80907, U.S.A. +1 719-694-1380 The 2016 SNIA Dictionary A glossary of storage networking, data, and information management terminology by the Storage Networking Industry Association The SNIA Dictionary contains terms and definitions related to storage and other information technologies, and is the storage networking industry's most comprehensive attempt to date to arrive at a common body of terminology for the technologies it represents. -
Units of Measure Used in International Trade Page 1/57 Annex II (Informative) Units of Measure: Code Elements Listed by Name
Annex II (Informative) Units of Measure: Code elements listed by name The table column titled “Level/Category” identifies the normative or informative relevance of the unit: level 1 – normative = SI normative units, standard and commonly used multiples level 2 – normative equivalent = SI normative equivalent units (UK, US, etc.) and commonly used multiples level 3 – informative = Units of count and other units of measure (invariably with no comprehensive conversion factor to SI) The code elements for units of packaging are specified in UN/ECE Recommendation No. 21 (Codes for types of cargo, packages and packaging materials). See note at the end of this Annex). ST Name Level/ Representation symbol Conversion factor to SI Common Description Category Code D 15 °C calorie 2 cal₁₅ 4,185 5 J A1 + 8-part cloud cover 3.9 A59 A unit of count defining the number of eighth-parts as a measure of the celestial dome cloud coverage. | access line 3.5 AL A unit of count defining the number of telephone access lines. acre 2 acre 4 046,856 m² ACR + active unit 3.9 E25 A unit of count defining the number of active units within a substance. + activity 3.2 ACT A unit of count defining the number of activities (activity: a unit of work or action). X actual ton 3.1 26 | additional minute 3.5 AH A unit of time defining the number of minutes in addition to the referenced minutes. | air dry metric ton 3.1 MD A unit of count defining the number of metric tons of a product, disregarding the water content of the product. -
What Is a Computer? Foundations of Computer Science E.H
What is a Computer? Foundations of Computer Science E.H. Turner and R.M. Turner If you are reading this book, it is almost certain you are very familiar with computers. You probably own at least one (laptop, desktop, cell phone. ), and you likely use them most days, probably for quite a few hours per day. It is possible, however, to be familiar with something without really knowing how it works, or even what is truly is. So what is a computer? At one level, a computer is a tool. Like any tool, it allows us to do things better than we could without it, or even to do things we could not do at all prior to the tool’s invention. Originally, and still to a large extent, computers augment our ability to do calculations: whereas we may be able to do one or two mathematical operations per second, with a computer, we can do billions; by ourselves, we may be able to laboriously do complex calculations, but with a computer, it becomes easy; by ourselves, and with pencil and paper, we may be able to remember quite a few data points, but with a computer, we can remember a virtually unlimited amount. Computers do more than math, of course. In fact, they can do so many things, including controlling things in the real world, that computers have been called the “universal tool”. We are all familiar with the myriad things that this tool enables us to do: write papers, carry hundreds of books in our pocket and read them, talk over long distances (cell phones, the Internet), listen to music, create music, watch movies, create movies, play video games, construct things (3D printers, robots), drive effortlessly (modern cruise control, autonomous cars), explore other planets and the deep sea, defend ourselves or attack others (torpedoes, drones), and on and on. -
“ICT Equipment Societies”?? Measuring the Digital Information
Information Societies or “ICT equipment societies”? Measuring the information processing capacity of a society in bits and bytes Information Societies or “ICT equipment societies”? Measuring the digital information processing capacity of a society in bits and bytes Martin Hilbert1, Priscila López2, Cristián Vásquez3 This is the author’s pre-print version of the article finally published as: Hilbert, M., López, P., & Vásquez, C. (2010). Information Societies or “ICT Equipment Societies?” Measuring the Digital Information-Processing Capacity of a Society in Bits and Bytes. The Information Society, 26(3), 157–178. doi:10.1080/01972241003712199 http://www.tandfonline.com/doi/abs/10.1080/01972241003712199 Information Societies or “ICT equipment societies”? Measuring the digital information processing capacity of a society in bits and bytes............................................................... 1 Multiple dimensions of technology diffusion ............................................................. 3 The closing digital equipment divide .......................................................................... 7 The three subsystems of information processing ...................................................... 10 The amount of digital information ............................................................................ 13 The digital divide as a moving target ........................................................................ 18 Limitations and resulting research challenges ......................................................... -
Lecture 4” Area
● Log into the Moodle site ● Enter the “Lecture 4” area ● At 14:00, choose “Daily Quiz 3” ● Answer the multiple choice quiz (you have until 14:10 to finish) Let's try! ● In the remote machine, inside directory ~jmalves/PE8/ ● Try commands ls -l and cd on directories: another_dir also_a_dir some_dir third_dir J.M.P. Alves 2 / 49 BMP0260 / ICB5765 / IBI5765 Now you do it! Go to the course site and enter Practical Exercise 8 Follow the instructions to answer the questions in the exercise Remember: in a PE, you should do things in practice before answering the question! J.M.P. Alves 3 / 49 BMP0260 / ICB5765 / IBI5765 How to change permissions ● The chmod command allows one to change permissions for a file or a directory (if one has permission to do that, of course!) ● This command can use a symbolic (i.e., letters) or octal (numbers) mode ● The symbolic mode uses letters u, g, o, a, r, w, and x ● u, g, o, a are for user (owner), group, others, and all, respectively ● r, w, x are read, write, execute, as usual ● The octal mode uses numbers 0 to 7 (eight digits, thus octal) J.M.P. Alves 4 / 49 BMP0260 / ICB5765 / IBI5765 Description Symbol Octal code Read r 4 Write w 2 Execute x 1 Read and Execute rx 5 (4 + 1) Read and Write rw 6 (4 + 2) Read, Write and Execute rwx 7 (4 + 2 + 1) -rwxr-xr-x 1 joe bmp0260 12456 Feb 31 13:37 file.txt Remove read and execute permissions for others (i.e., not user or group): chmod o-rx file.txt symbolic or chmod 750 file.txt octal -rwxr-x--- 1 joe bmp0260 12456 Feb 31 13:37 file.txt J.M.P. -
File Organization & Management
1 UNESCO -NIGERIA TECHNICAL & VOCATIONAL EDUCATION REVITALISATION PROJECT -PHASE II NATIONAL DIPLOMA IN COMPUTER TECHNOLOGY File Organization and Management YEAR II- SE MESTER I THEORY Version 1: December 2008 1 2 Table of Contents WEEK 1 File Concepts .................................................................................................................................6 Bit: . .................................................................................................................................................7 Binary digit .....................................................................................................................................8 Representation ...............................................................................................................................9 Transmission ..................................................................................................................................9 Storage ............................................................................................................................................9 Storage Unit .....................................................................................................................................9 Abbreviation and symbol ............................................................................................................ 10 More than one bit ......................................................................................................................... 11 Bit, trit, -
PC Maintenance and Repair Career Diploma Sample
System Boards and Component Identification THE SYSTEM BOARD In this section of the study unit, we’re going to learn about the system board. The system board is the main printed circuit board (PCB) in a PC that enables the interaction and control of all other components and devices in a computer system. A system board can be compared to a mass transit system in a large city. Mass transit in a city has intercon- nected streets, avenues, and highways that are used for transportation. Similarly, with a system board, data and information is transported via the bus, which can have numerous components attached to its “roadways.” In a city, we have stop lights, stop signs, and other ways of controlling traffic, as well as people who use the transportation system to get from place to place. If we didn’t have ways to manage the traffic, we might get lost, end up in a traffic jam, or be involved in an accident. Similarly, the system board has a system clock to synchronize the operation of the bus and other components. The system clock keeps data and information flowing smoothly to its correct destination, and hopefully without error. Professional Tip Don’t confuse the system clock with the operating system (OS) clock in Windows. The OS clock is a software component of the Windows operating system, and uses the Real-Time Clock/Calendar (RTCC) chip to display and adjust the date and time. 1 The system board is the most important module and the The system board may also be referred to as main PCB in the computer.