latest of a long series of information technologies‚ which includes printing‚ mail‚ radio‚ television and the telephone. It is the application of computers and telecommunications equipment to store‚ retrieve‚ transmit and manipulate data‚ often in the context of a business or other enterprise. The term is commonly used as a synonym for computers and computer networks‚ but it also encompasses other information distribution technologies such as television and telephones. Information technology refers
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Function of digital computer A typical digital computer system has four basic functional elements: (1) input-output equipment. (2) main memory. (3) control unit. (4) arithmetic-logic unit. Any of a number of devices is used to enter data and program instructions into a computer and to gain access to the results of the processing operation. Common input devices include keyboards and optical scanners; output devices include printers and cathode-ray tube and liquid-crystal display monitors
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General Computer Questions [pic] General Computer Question 1: What is a computer? Answer: A common‚ somewhat simplified‚ definition is that the computer is an electronic device that can be used to process information. Today‚ computers are not only used for calculations‚ but also for creating and manipulating text and pictures. They are used to design bridges and spacecraft‚ to record a company’s sales and to keep track of customers‚ to create a school newspaper‚ or to estimate the cost
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GASEOUS DISCHARGE LAMPS: A gaseous discharge lamp is essentially a glass or quartz envelop containing two electrodes and a small quantity of gas or vapour at a low pressure. In these lamps light is obtained by applying an electric potential difference to a gas or vapour contained by the lamp under a suitable pressure. Due to application of electric potential difference gas gets ionised and an electric current flows; the tube is filled with a luminous discharge. The light spectrum
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Computers Computers have made life easier for the human race. Americans today take for granted the great impact the computer has on their lives‚ making things easier‚ faster‚ and more convenient for them. Computers helped the world a lot and helped us take a large step into the future. Almost anything you know is run or made by computers‚ industry‚ cars‚ jets‚ and ect. Computers are the most important innovations in history‚ without computers the world would not be able to function in the
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The computer was born not for entertainment or email but out of a need to solve a serious number-crunching crisis. By 1880 the U.S. population had grown so large that it took more than seven years to tabulate the U.S. Census results. The government sought a faster way to get the job done‚ giving rise to punch-card based computers that took up entire rooms. Today‚ we carry more computing power on our smartphones than was available in these early models. The following brief history of computing is
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PURCHASING Primary Purpose To ensure a continuing supply of sufficient quantities of the necessary foods‚ each of the quality appropriate to its intended use and purchased at the most favorable price Types of Food to be Purchased 1. Perishables Typically fresh foods that have a short useful life after they have been received Example: fruits‚ vegetables‚ fresh seafoods‚ fresh meats 2. Non-Perishables Food items that have longer shelf-life Frequently referred to
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Seed Germination‚ Dormancy‚ and Storage 1 _________________ I. INTRODUCTION Seeds role in the germination process is a critical part in the plant ’s survival. This is practically true in almost all of the plants species (Copeland & McDonald‚ 1995). As germination is defined as "the emergence and development from the seed embryo of those essential structure"‚ which‚ for the kind of seed in question indicates "its ability to produce a normal plant under favorable
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Computers have become such indispensable devices in the modern era that we cannot imagine life without computers. However‚ there have been different ideas on the benefits of computers. In my opinion‚ computers do more good than harm because they can make life easier and also can help our work become more systematically and productively. Firstly‚ computers give many advantages as they can make life easier. As a student‚ many works must be done by using computer such as assignment and presentation
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It can refer to all computer instructions in general or to any specific set of computer instructions. It is inclusive of both machine instructions and source code (more human-understandable instructions that must be rendered into machine code by compilers or interpreters before being executed). On most computer platforms‚ software can be grouped into a few broad categories: software is the basic software needed for a computer to operate. software refers to one or more computer programs and data
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