easy-to-use spreadsheets: Spreadsheet 1: The Inventory Performance Simulator This spreadsheet allows you to perform forecasting‚ replenishment‚ and investment analysis on up to100 items at a time by loading your data into a single worksheet. Areas of analysis include: • Differentiating types of usage. • For items with recurring usage‚ identify the best forecast formula from among nine methods preloaded into the spreadsheet; calculate the forecast and suggested replenishment parameters. • For items
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Types of Storage Devices Physical components or materials on which data is stored are called storage media. Hardware components that read/write to storage media are called storage devices. Two main categories of storage technology used today are magnetic storage and optical storage. Primary magnetic storage o Diskettes o Hard disks (both fixed and removable) o High capacity floppy disks o Disk cartridges o Magnetic tape Primary optical storage o Compact Disk Read Only Memory (CD ROM)
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Five Types of Information Systems Information systems are constantly changing and evolving as technology continues to grow. Very importantly the information systems described below are not mutually exclusive and some (especially Expert Systems‚ Management Information Systems and Executive Information Systems are can be seen as a subset of Decision Support Systems). However these examples are not the only overlaps and the divions of these information systems will change over time. At present there
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1. Cold Storage a. Overview The name “Cold Storage” is an icon and its story is unique in the corporate histories of Singapore. The Company had humble beginnings - a small depot storing and selling mainly frozen meat from Australia. From that‚ it has grown to become the premier player in retailing in Singapore. Established in 1903‚ Cold Storage was the child of the Industrial Revolution and Pax Britannica‚ when Singapore was the “Clapham Junction of the Eastern Seas”. Together with electricity
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TYPES OF OPERATING SYSTEM Real-time Operating System: It is a multitasking operating system that aims at executing real-time applications. Real-time operating systems often use specialized scheduling algorithms so that they can achieve a deterministic nature of behavior. The main object of real-time operating systems is their quick and predictable response to events. They either have an event-driven or a time-sharing design. An event-driven system switches between tasks based of their priorities
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The need for more storage is growing. The amount of data produced is doubling in every two years. (in 2010 – 1.8 zettabytes) The cost of creating‚ managing and storing the data is decreasing‚ but can the optical storage expand further? The current Blu-ray lasers emit light in the blue part of the electromagnetic spectrum (about 420 nanometer wavelength). There are ongoing researches using UV light‚ that would probably have to be 200 nm and would provide storage capacities of over 100 GB in a single
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economically viable alternative to other storage networking solutions. Justify this statement. Ans- DAS provides an economically viable alternative to other storage networking solutions as- • DAS configuration is simple and can be deployed easily and rapidly. • Setup is managed using host-based tools‚ such as the host OS‚ which makes storage management tasks easy for small and medium enterprises. • DAS is the simplest solution when compared to other storage networking models • Requires fewer
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STORAGE DEVICE Definition A storage device can be defined as any piece of hardware whose main function is to store data and information The hardware that writes data to or reads data from a storage medium is called a storage device. Types of Computer Storage Devices Computer storage devices can be classified into o Primary storage o Secondary storage o Tertiary storage Primary Computer Storage Devices Primary storage refers to the computer’s memory(RAM) RAM (Random Access Memory)
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Fie lFile Organization Terms & Conceptscomprises a record; A computer system organizes data in a hierarchy t A computer system organizes data in a hierarchy that starts with bits and bytes and progresses to fields‚ records‚ files‚ and databases. * A bit represents the smallest unit of data a computer can handle. * A group of bits‚ called a byte‚ represents a single character‚ which can be a letter‚ a number‚ or another symbol. * A grouping of characters into a
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Secondary storage (optical) Table of contents Why was secondary storage needed? 1 Different types of optical discs: 1 1‚ CD (compact disc): 1 2‚ DVD (digital versatile storage) 2 3‚ Blu-Ray Disc (BD): 3 Which type of recordable disc should I choose: 3 Understanding the difference between the Live File System and Mastered disc formats: 3 Discs formatted with the Live File System option: 3 Discs formatted with the Mastered option: 4 Questions from students: 4 References: 5
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