Understanding Operating Systems: Windows 8.0
Topic A
Operating System: Windows 8.0
Open Computer.
Click properties.
In the the left pane click on Advanced system settings
Under performance Click Settings
Click the Advanced tab.
Under Virtual Memory you can change the Virtual Memory.
On my computer the minimum size is 16MB and the maximum recommended size is 3313 MB.
Topic B
Cache memory is on the main chip, it can be accessed much more quickly than RAM, which is restricted by the BUS speed. Data is held in the Processor cache memory, where it is close to the processor, thus speeding up the operation of the processor. The implementations of cache memory on multi-core chips do vary from one manufacturer to another but have to adhere to a certain code.
Schauer, Bryan. "Multicore Processors, ProQuest Discovery Guides." Multicore Processors,
ProQuest Discovery Guides. Sept. 2008. Web. 03 Mar. 2014. .
Exercise 3
471 bytes → page frames of 100 bytes, instruction to be used is in byte 132
a) 5 pages are needed to store the entire program.
b) 132 / 100 = 1 with a remainder of 32
In other words, it is located on page 1 byte 33.
Exercise 4
510 bytes → page frames of 256 bytes, instruction to be used is in byte 377
a) 2 pages are needed to store the entire program
b)377/256= 1 with a remainder of 121.
In other words, it is located on page 1 byte 122.
Exercise 5
A)Only three page frames Available
Pages a, b, c, d, e, f, g
Requested pages → a, c, a, b, a, d, a, c, d, e, f
Step 1: Page A is moved into the first available page frame.
Step 2: Page C is moved into the second available page frame.
Step 3: Page A is already available.
Step 4: Page B is moved into the third available page frame.
Step 5: Page A is already available.
Step 6: Page C is swapped into secondary storage
Step 7: Page D is moved into the second available page frame.*
Step 8: Page A is already available.
Step 9: Page B is swapped into secondary storage.
Step 10: Page C is moved into the third available page frame*
Operating System: Windows 8.0
Open Computer.
Click properties.
In the the left pane click on Advanced system settings
Under performance Click Settings
Click the Advanced tab.
Under Virtual Memory you can change the Virtual Memory.
On my computer the minimum size is 16MB and the maximum recommended size is 3313 MB.
Topic B
Cache memory is on the main chip, it can be accessed much more quickly than RAM, which is restricted by the BUS speed. Data is held in the Processor cache memory, where it is close to the processor, thus speeding up the operation of the processor. The implementations of cache memory on multi-core chips do vary from one manufacturer to another but have to adhere to a certain code.
Schauer, Bryan. "Multicore Processors, ProQuest Discovery Guides." Multicore Processors,
ProQuest Discovery Guides. Sept. 2008. Web. 03 Mar. 2014. .
Exercise 3
471 bytes → page frames of 100 bytes, instruction to be used is in byte 132
a) 5 pages are needed to store the entire program.
b) 132 / 100 = 1 with a remainder of 32
In other words, it is located on page 1 byte 33.
Exercise 4
510 bytes → page frames of 256 bytes, instruction to be used is in byte 377
a) 2 pages are needed to store the entire program
b)377/256= 1 with a remainder of 121.
In other words, it is located on page 1 byte 122.
Exercise 5
A)Only three page frames Available
Pages a, b, c, d, e, f, g
Requested pages → a, c, a, b, a, d, a, c, d, e, f
Step 1: Page A is moved into the first available page frame.
Step 2: Page C is moved into the second available page frame.
Step 3: Page A is already available.
Step 4: Page B is moved into the third available page frame.
Step 5: Page A is already available.
Step 6: Page C is swapped into secondary storage
Step 7: Page D is moved into the second available page frame.*
Step 8: Page A is already available.
Step 9: Page B is swapped into secondary storage.
Step 10: Page C is moved into the third available page frame*