Let’s take an average page fault service time of 25 ms and a memory access time of 100 ns‚ then the effective access time in ns is effective access time = (1-p)*(100) +p(25 ms) =(1-p)*100+p*25‚000‚000) =100+24‚999‚900*p We saw effective access time is directly proportional to the page fault rate . suppose one access out of 1‚000 cause a page fault‚ effective access time is 25 ms the computer might be slow down by a factor of 250 because of demand paging. Suppose we want less than 10 % degradation
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E1/D1: The Health and Safety at Work Act 1974- This Act is set out to look after children and others at work. Their aims are: •Securing the health of all workers in the area. •Protecting persons against risks to health and safety arising in connection to the person. •Controlling dangerous substances in a work area. The act ensures that all workplaces have signs of risks and safety procedures for everyone in that workplace to know them and how they are all controlled. All settings must have warnings
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Social Disengagement Theory This theory was created and discovered in 1961 by two theorist called Cumming and Henry. Disengagement theory is when an older adult isolates themselves from the society; this is a process of mutual withdrawal. This is when elders slow down and aren’t able to do the things they were once able to do for example this may include golf‚ bowling‚ bingo‚ visiting friends and family and many other hobbies‚ this also may include voluntarily retiring as expected by society. They
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1. A functional cell could be built with a single chromosome‚cytoplasm‚a cell membrane‚ and ribosomes.Why are these four components absolutely necessary to the functional cell? If these structures are all a cell needs‚ why do most cells have many more structures? A chromosome is necessary so that there is a “map” of the cells function and structure‚ cytoplasm is necessary as it is where most of the cell’s activity occurs‚ ribosomes are essential as they are the site of protein synthesis‚ which
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At National Extension College‚ my role consists of being the first point of contact with customers who wish to enquire about our courses and/or enrol in our courses. I am expected to answer any queries and guide prospective students through the process of enrolment. Customer Service takes an important stand in any business and it is essentially what my role revolves around. The first thing I do every morning is to turn on my computer and log into ‘Agent’ (the software we use to keep track of the
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DEMI LOVATO LIFE FACTORS Life factors mean that there are a variety of factors that affect a person’s life. Life factors include genetic factors‚ biological factors‚ environmental factors‚ socioeconomic factors and lifestyle factors. All of these factors contribute to a person’s life. I shall be exploring the life factors through the celebrity of Demi Lovato. P2‚ p3‚p4‚p5‚m2‚m3 BULLYING An example of an environmental factor that has affected demi Lovato is bullying. Bullying is treating
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SFX TESCO COMPARISON DIRECTOR The director of SFX will be the principle‚ who serves as an educational director in charge of the college. Her job as the director includes over seeing that everything in the college runs smoothly‚ managing the policies and procedures to ensure that all the students who have enrolled to study at SFX are safe while they are within the environment and also receive they best education the college can offer. Tesco’s director ensures that the business is meeting its goals
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Context communication ; refers to the way how your massage or anything that made people to be communicated easier to your business or people to get influenced in either positive or negative way. There are five context communication and these are; Intra personal communication; this is the process where by a person can listen to someone’s massage‚ then before the massage to be finished he start himself to talk in his mind‚ to find the solution what to do with the thing that has been mentioned
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External: The following customers and suppliers will also need to be contacted. This communication will happen via face to face contact‚ over the phone and also with a mail out to everyone on the company database. Pamphlets will also be printed and given out with each parcel picked up and delivered. External parties to be contacted include: Utilities Electricity Company Water Board Phones ( mobile and landlines) Suppliers Stationary Supplier Professional Printing Xerox Toner & Cartridges
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OUTLINE THE PRINCIPLES OF SYSTEMS ANALYSIS - WHAT ARE KEY DRIVERS? Given that the development of new systems can be fraught with problems and delays‚ what drives organisations to develop systems? The most important drivers come directly from the needs of the business and are often not related to technology‚ but require technological solutions. There are a number of possible triggers for the need to develop a new system including users identifying a need‚ organisations needing to grow
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