

OS: File Management
Presentation
•
Computers
•
9th - 10th Grade
•
Medium
Calum Gordon
Used 8+ times
FREE Resource
14 Slides • 19 Questions
1
OS: File Management
How the OS abstracts your files

2
3
4
Multiple Select
In this lesson I am going to learn ... ?
How the OS oragnises files and allocates space
Calculate storage space required for a particular file
How OS uses file permissions
Select appropriate level of access
5
6
Multiple Choice
Which one of these options is NOT under the control of the OS?
File management
Process management
User management
Memory management
Time management
7
8
Multiple Choice
What name is given to the type of file organisation shown in the diagram?
Functional
Structural
Procedural
Hierarchical
9
Fill in the Blanks
Type answer...
10
11
Multiple Choice
When a hard disk is formatted a number of invisible __________ are laid down on the disk surface. ____________ divide the disk surface into areas a bit like slices of pizza. File data is divided up into ___________ and stored in these areas.
tracks, sectors, blocks
blocks, tracks, sectors
sectors, tracks, blocks
tracks, blocks, sectors
12
13
Multiple Choice
A mebibyte is 2 to the power of ____________ bytes?
10
20
30
40
14
Fill in the Blanks
Type answer...
15
Fill in the Blanks
Type answer...
16
17
Multiple Choice
A hard disk allocates space using a block size of 256 bytes.
A file is 8.2 MiB in size.
Which Python expression shows how many blocks are needed to store this file?
= math.ceil(8.2*1024*/256)
= math.ceil(8.2*1024*1024/256)
= (8.2*1024*1024//256)
18
19
Multiple Select
Choose all the valid operations that the OS can carry out on a file ...
open
execute
copy
corrupt
20
21
Fill in the Blanks
Type answer...
22
Fill in the Blanks
Type answer...
23
Fill in the Blanks
Type answer...
24
25
Multiple Choice
Which one is NOT a recognised file access permission?
read
write
execute
delete
copy
26
27
28
Multiple Choice
Mr Turing is a Computer Science teacher in a senior school.
Mr Gates is the IT systems manager for the school.
What levels of permission should each be given for the school's main shared folder on OneDrive?
Turing - read
Gates - read/write/execute
Turing - read/write
Gates - read
Turing - read/write
Gates - execute
29
Multiple Choice
Mr Turing is a Computer Science teacher in a senior school.
Bill Gates is a GCSE Computer Science student.
What levels of permission should each be given for the department 's main shared teaching folder on OneDrive?
Turing - read/write/delete
Gates - read
Turing - read
Gates - read/write/execute
Turing - read/write
Gates - read/delete
30
31
Multiple Select
In this lesson I have learned to ...
Describe how OS organises files
Calcu;ate storage blocks required
Describe types of file permission and how used
32
Open Ended
Thinking Hard
Write three questions that this lesson so far has answered...
(press Shift+Enter to take a new line ...)
33
Poll
How much of this lesson have you understood?
None of it
Some of it
Most of it
All of it
OS: File Management
How the OS abstracts your files

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