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Задача Задача №2539089
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19 декабря 2024 06:39 · публичный вопрос
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Broadband internet High-speed broadband access to the internet, making it easier to download text, pictures and video, etc. has now become well-established. Higher bandwidth -…

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Broadband internet High-speed broadband access to the internet, making it easier to download text, pictures and video, etc. has now become well-established. Higher bandwidth - connection speed - allows better use of some applications such as webcams, for two-way video communication, and video-conferencing, where people in two or more locations can see and talk to each other. Internet TV has also emerged, with users able to watch television as it is streamed over the internet, and with video-on-demand (VOD) services such as the BBC's iPlayer to watch programmes later. Internet access is increasingly available on wireless LAN (local area network) systems, commonly known as Wi-Fi. To access the internet in this way, you have to be in a particular hotspot - a place such as a café, airport terminal, etc. equipped with the network. Mobile internet This relates to accessing the internet via mobile devices such as mobile phones, tablets and handhelds. In this area, a new category of computer has emerged: the netbook, a small, portable laptop computer with no moving parts, specifically designed to browse or surf the internet. The standard mobile communications technology for doing this is 3G or 4G. Mobile devices increasingly come loaded - equipped - with different applications or apps - programs for different uses, for example email, a music player such as Apple's iPod, etc. Another of these applications is SatNav - satellite navigation using GPS (Global Positioning System) - with mapping to see where you are and to navigate - plan and follow routes. Moore's law As ever, Moore's law is playing its part in bringing down the price of different devices. This is the principle that the computing power of a particular size of computer chip - the basic component of computers - will roughly double every 18 months. This means that the cost of a particular unit of computing power will continue to halve every 18 months for the foreseeable future. The law is named after Gordon Moore, co-founder of the chip company Intel, who made the prediction in 1965. Use Moore's Law in C opposite to do the following calculation. In 1987, the cost for a particular size of computer memory chip was US$12,500. What was the cost for the same unit in 2017? Choose from these options (a-c). c 1 cents a $10 b 10 cents

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19 декабря 2024 06:39

To apply Moore's Law in the context of the given problem, we need to calculate how many 18-month periods there are between 1987 and 2017 and then use that to determine the cost of the memory chip in 2017.

From 1987 to 2017 is a period of 30 years. Since 30 years is equivalent to 30 × 12 = 360 months, we can find the number of 18-month periods in 360 months:

360 months / 18 months per period = 20 periods

According to Moore's Law, the cost of computing power halves every 18 months. So, after 20 periods, we need to halve the original cost of $12,500:

  1. First period: $12,500 / 2 = $6,250
  2. Second period: $6,250 / 2 = $3,125
  3. Third period: $3,125 / 2 = $1,562.50
  4. Fourth period: $1,562.50 / 2 = $781.25
  5. Fifth period: $781.25 / 2 = $390.625
  6. Sixth period: $390.625 / 2 = $195.3125
  7. Seventh period: $195.3125 / 2 = $97.65625
  8. Eighth period: $97.65625 / 2 = $48.828125
  9. Ninth period: $48.828125 / 2 = $24.4140625
  10. Tenth period: $24.4140625 / 2 = $12.20703125
  11. Eleventh period: $12.20703125 / 2 = $6.103515625
  12. Twelfth period: $6.103515625 / 2 = $3.0517578125
  13. Thirteenth period: $3.0517578125 / 2 = $1.52587890625
  14. Fourteenth period: $1.52587890625 / 2 = $0.762939453125
  15. Fifteenth period: $0.762939453125 / 2 = $0.3814697265625
  16. Sixteenth period: $0.3814697265625 / 2 = $0.19073486328125
  17. Seventeenth period: $0.19073486328125 / 2 = $0.095367431640625
  18. Eighteenth period: $0.095367431640625 / 2 = $0.0476837158203125
  19. Nineteenth period: $0.0476837158203125 / 2 = $0.02384185791015625
  20. Twentieth period: $0.02384185791015625 / 2 = $0.011920928955078125

By rounding this to the nearest cent, we find that the cost of the memory chip in 2017 is approximately $0.01 (or 1 cent).

Therefore, the answer is: c 1 cent.