History of the Personal Computer Introduction: The history of the personal computer is vast and complex. As computers continue to develop‚ each development brings greater opportunities and challenges to the world of computing. ------------------------------------------------- Learn how it all started and where it has led to in today’s world. Quiz 1. The first accurate mechanical calculator was invented in 1642 by __________. a. Charles Babbage b. Blaise Pascal
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Giorgia Laird‚ Holly Adams‚ Prao Vikitsreth‚ Ella Chambers‚ EmmaJane Littler Threats to Antarctica Antarctica has a brutal climate; it is the coldest‚ windiest‚ most deserted place on earth. Due to the continent’s inhospitality‚ only select species can live there‚ including phytoplankton‚ krill and squid at the bottom of the food web‚ and killer whales‚ blue whales and seals at the top‚ and it is also home to penguins‚ and several types of fish. However this harsh environment is also considered
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1) 2) 3) Natural resources and their role in the global economy: the mineral‚ energy‚ land‚ forest‚ water resources Human resources of the world economy and labor migration Scientific and technical resources and information resources 1) 2) 3) 4) 5) 6) 7) By Consumption and resilience: exhaustible non-renewable exhaustible renewable inexhaustible As belonging to the natural environment: Lithosphere resources: minerals land
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will be able to: * Define the purpose and objectives of an IT risk assessment * Align identified risks‚ threats‚ and vulnerabilities to an IT risk assessment that encompasses the seven domains of a typical IT infrastructure * Classify identified risks‚ threats‚ and vulnerabilities according to a qualitative risk assessment template * Prioritize classified risks‚ threats‚ and vulnerabilities according to the defined qualitative risk assessment scale * Craft an executive summary
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Redox potential – CV Acetonitrile Adjusted sensitivity Each ;line represents diff scan rates all been overlayed on one digarm Scan rates ranged from 0 .1 s-1 to 1 Peak due to iodide oxidation is read from +peak to – peak bottom line. Iodide to triiodide Glycol Didn’t work Using equation ip = 2.69 ×105 n3/2 A D1/2 C ν1/2 compare to linear equation y = mx+c y = peak current x = V1/2 c = zero Therefore m is = everything else C = concentration 0.05 M ethylene glycol (acetonitrile
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The formation of an action potential can be divided into five steps. (1) A stimulus from a sensory cell or another neuron causes the target cell to depolarize toward the threshold potential. (2) If the threshold of excitation is reached‚ all Na+ channels open and the membrane depolarizes. (3) At the peak action potential‚ K+ channels open and K+ begins to leave the cell. At the same time‚ Na+ channels close. (4) The membrane becomes hyperpolarized as K+ ions continue to leave the cell. The
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which cell has the larger resting membrane potential? Explain. If the permeability to K is higher in A than in B‚ then the resting membrane potential (rmp) will be closer to the equilibrium potential in cell A‚ which means the rmp will be more negative in cell A than in cell B; or in other words‚ the potential difference will be LARGER in cell A. 2. Predict the effect of a reduced extracellular concentration of Na+ on the magnitude of the action potential in an electrically excitable cell. If there
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Personal Computer Person : 1 user Price : IDR 2 million – 38 million Use : convert the data to information ex : businesses use personal computers for word processing‚ accounting‚ desktop publishing‚ and for running spreadsheet and database management applications. Storage Disk Capacity : 64GB – 2TB Mini Computer IBM AS/400 Person : Multiuser (Time Shared) Used by some user at the same time ex : used for a user group or per department at a large company Price : The price is relatively more expensive
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invest in computers that are available for all students? As the role of computers in academic contexts is becoming more and more important nowadays there is a discussion if universities should invest in technology which allows students to take exams on a computer. The aim of this essay is to assess the advantages and disadvantages of such a proposal. For the purposes of this essay the task only appraises the potential situation at the University X and will focus on investments in tower computers. This
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1. Most security plans start with infrastructure. If you were going to develop a Security plan from scratch‚ where would you start? Explain your answer. To develop a security plan from scratch‚ there are three steps which I would consider to implement first in the plan. a) Business impact analysis (BIA) and risk assessment The first question is to understand the impact of a loss or reduction of business functionality. I would first understand most critical assets and threats of the organization
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