Final exam in Computer Medicine

What are the largest memories of a PC?

For RAM, what characteristic can I change?

Why does the hard drive slow down when writing or reading in the paging file?

  1. why does the hard drive have a lower speed compared to ram?
  2. why is the information no longer in ram but on the hard drive, which is much slower to access than ram?
  3. why you need to find the right position to place the file.
  4. because it is filling up
  5. the paging file temporarily functions like ram, so it saves information temporarily on the hard drive, but it takes up space on the hard drive. in the meantime, the pc is not using the speed of ram but that of the disk.
  6. because the ram has run out.
  7. because it is subjected to light mechanical stresses
  8. because the ram is running out
  9. because it no longer uses the speed of the ram, but that of the hard drive, which is slower
  10. because it takes up space
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Which memory costs the least?

What does the rotational speed of a hard drive depend on?

  1. from the diameter of the disk
  2. from the diameter of the disk and consequently from the rpm.
  3. diameter
  4. on the surface area of the hard drive
  5. from the diameter radius of the disk itself, because the speed of the disk is inversely proportional to the radius; therefore, the larger the diameter of the radius, the slower the disk will spin, and thus the reading will be slower.
  6. the rpm depends on the latency time.
  7. from the size of the disk
  8. from the diameter of the disk
  9. air
  10. from the diameter and from wear
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Why are serial connections faster?

  1. why are there fewer interferences due to the electromagnetic fields generated by the movement of electrons, given that we have fewer pins, and therefore fewer channels for the electrons to pass through?
  2. because, unlike ides, in sata the bits travel sequentially over a few conductors, which results in less electromagnetic interference and allows for higher speeds.
  3. why do the electrons that pass through them not experience opposition from the magnetic fields?
  4. because the moving electrons don't create a large electric and magnetic field as they're doing in series
  5. why do electrons travel in series, one after the other? in parallel connections, they travel in parallel, and the electrons, creating intense electromagnetic fields, cause interference and are therefore slower.
  6. because electrons travel in series, minimizing interference.
  7. because they are guaranteed by continuous cabling
  8. because the electromagnetic fields of electrons do not interfere with their passage, slowing them down
  9. because the bits arrive at the receiver sequentially, generating an electric/magnetic field lower than that generated by the parallel ide connections
  10. because electrons flow in buses one after the other and are not subject to interference from magnetic or electric fields like in ides.
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What are the best features of an SSD?

What does formatting mean?

  1. formatting means "to virgin the disk" through the interaction between the read/write head and the disk itself, which creates a series of grooves (tracks, sectors, and clusters); thus preparing the disk for its future activity of storing files and data.
  2. prepare a storage device (hard disk, ssd, usb flash drive, sd card) for use by creating the file system that will allow organizing and managing data.
  3. make a hard drive non-virgin.
  4. the sorting and transferring of files
  5. make files readable and saveable to a storage device by engraving tracks on the disk through the read/write head.
  6. it means to delete the data.
  7. clean up all existing files
  8. delete the data
  9. prepare a storage unit to accommodate files by creating grooves in the disk
  10. create tracks by dividing them into sectors, with contiguous sectors forming clusters. the cluster is the minimum unit for file storage
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What are the defects of a magnetic disk?

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