TMA03 TM112
Question 1
Within a HDD are sectors that can store 512 bytes of data which are grouped together into a cluster, a
file’s size could take up a few clusters although not using all the sectors capacity leaving slack space,
continuing to store file’s as such till it’s non-contiguous causing the PC to slow down but a defragging
utility will more chucks of files together optimizing speeds.
Partitions are created for the OS’s FAT or NTFS as an index of clusters in use, unallocated or when a file has
been deleted but doesn’t waste time removing the files but make’s the cluster vacant to be over written
and can prove useful for file recovery after an accidentally deleting.
For security before you throw away a HDD the data must be cleared through either overwriting the disk
with zeros and ones, degaussing data magnetisation on HDD’s using a magnetic field or physical
destruction.
(words 150)
Question 2
a)i)
>> show definition
>>>Prompt for user input
>>>If the glossary contains this word, print the definition of the entry
>>>Otherwise, print the entry was not found in glossary
ii)
def look_up_definition():
""" Ask's user for a word to define and
returns the definition if there is one.
"""
entry = input('Please enter your word: ')
if entry in glossary:
print('The definition of ', entry, 'is ', glossary[entry])
else:
print(entry, 'not found in glossary')
, iii)
Question 1
Within a HDD are sectors that can store 512 bytes of data which are grouped together into a cluster, a
file’s size could take up a few clusters although not using all the sectors capacity leaving slack space,
continuing to store file’s as such till it’s non-contiguous causing the PC to slow down but a defragging
utility will more chucks of files together optimizing speeds.
Partitions are created for the OS’s FAT or NTFS as an index of clusters in use, unallocated or when a file has
been deleted but doesn’t waste time removing the files but make’s the cluster vacant to be over written
and can prove useful for file recovery after an accidentally deleting.
For security before you throw away a HDD the data must be cleared through either overwriting the disk
with zeros and ones, degaussing data magnetisation on HDD’s using a magnetic field or physical
destruction.
(words 150)
Question 2
a)i)
>> show definition
>>>Prompt for user input
>>>If the glossary contains this word, print the definition of the entry
>>>Otherwise, print the entry was not found in glossary
ii)
def look_up_definition():
""" Ask's user for a word to define and
returns the definition if there is one.
"""
entry = input('Please enter your word: ')
if entry in glossary:
print('The definition of ', entry, 'is ', glossary[entry])
else:
print(entry, 'not found in glossary')
, iii)
