Lesson 4 - System software Flashcards Preview

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Flashcards in Lesson 4 - System software Deck (10)
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1

What does BIOS stand for?

-Basic input and output -software/system

2

What is interrupting software?

-A safe way to exit what you are doing.

3

What is managing memory?

-Called fair share in memory
-It allocates cetains sections ofmemory tor different processes.
-This is decided by the operating system.

4

What is paging?

-The memory is split up into eaul sized chunks and each section is called a page.
- Each program is allocated a certain number of pages
- Has grid like structure
-Pages can be easily swapped between virtual memory and main memory

5

What is segmentation?

-It is faster than paging
-You can copy whole segments into cache.

6

What is the "heap" in segmentation?

-It is a general purpose part of memory.

7

What is "stack" in segmentation?

-A place wher eyou store the functions in the page

8

What is virtual memory?

-If an application is not being used it is copied into the page file.

9

What is diskthrashing?

-When pages are constantly beging changed from memory into ram.

10

How does RAM reduce seek time?

-It is electronic - so it is very fast.