Skip to main content

CST334 Journal Entry Week 2

 In the second week of CST334 Operating Systems, we learned about how the CPU executes multiple processes at a time through context switching. I learned that there are several techniques to instruct the CPU to handle multiple  processes. I learned about first in, first out (FIFO), where the first process to start is the first to finish. Last in first out (LIFO) where the last process that comes in is the first to be completed. Shortest job first (SJF) looks at all the current processes and picks the one that is the shortest. This is closely related to shortest to complete which looks at which process has the least amount of time remaining to be completed. One additional method was round robin where the CPU is continually switching process based on a given time interval.

I found it interesting to learn about the various ways an operating system can be programmed to handle the many processes it will be expected to handle. I felt that I learned a lot about the tradeoffs for each method and where each method can work well.

Comments

Post a Comment

Popular posts from this blog

CST 370 Week 4 Journal

 This week primarily consisted of the Mid term which encompassed the first three weeks of learning. So far, this class has been challenging, but I am beginning to grasp some of the main concepts. I find that doing a daily review of the materials I have learned helps me to feel a little more confident that I understand. I feel that the main ideas have been computing the time complexity of the algorithm and getting familiar with some established algorithms for solving common problems. I will continue to study the new material and review previous materials to continue to improve.
Post a Comment
Read more

Week 5 Learning Journal

Part One:  Supporting and Commenting on Teammate's Goals I visited the following teammate's blogs and commented on their goals. Juan's Blog Vance's Blog Part Two: Possible Capstone Ideas The three ideas I have for my capstone project are two different mobile apps and one indie game. For the two apps I am thinking of creating something in Swift, the programming language of iOS. The first app is a passion project that involves a list builder for a miniature tabletop game called OnePageRules. It is an independent miniature game ruleset and already has a web version. My app would take that template and adapt it for iOS. The second app would be a simple star wars app that utilizes an online API for Star Wars call SWAPI. This API has a number of entries related to the Star Wars universe in JSON format. My app would connect to this online API, download specific pieces of data and display them in the app.  The third idea would be to create a simple side scroller game. The game ...
Post a Comment
Read more

Leetcode Practice Reflection 1.Two Sum

LeetCode Practice Reflection - 1. Two Sum Date:   19MAY25 What I Worked on Today: Practiced doing LeetCode Problem 1.Two Sum. What I Learned: - How to use the enumerate() function - How to optimize possible solutions after considering brute force methods - How to declare a new dictionary (key value pair) Code Snippet I Wrote or Studied: class Solution(object): def twoSum(self, nums, target): seen = {} for i, num in enumerate(nums): compliement = target - num if compliment in seen: return [seen[compliment], i] seen[num] = i In My Own Words: This function takes in a list of numbers and will return the index of the two numbers that add up to the provided target value. The way this program works is that it creates a dictionary called "seen". It will then iterate through the list of numbers and use the enumerate function to keep track of the index and the value of the specific item in the provided list. The for loop will calculate the compliment numbe...
Post a Comment
Read more