vault backup: 2025-03-08 17:31:57

.obsidian/workspace.json

@@ -13,12 +13,12 @@
             "state": {
               "type": "markdown",
               "state": {
-                "file": "Concurrent Systems/notes/Lezione1.md",
+                "file": "Concurrent Systems/notes/1 - CS Basics.md",
                 "mode": "source",
                 "source": false
               },
               "icon": "lucide-file",
-              "title": "Lezione1"
+              "title": "1 - CS Basics"
             }
           }
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@@ -215,7 +215,7 @@
     "Concurrent Systems/notes/images/Pasted image 20250304090207.png",
     "Concurrent Systems/notes/images/Pasted image 20250304084901.png",
     "Concurrent Systems/notes/images/Pasted image 20250304084537.png",
-    "Concurrent Systems/notes/Lezione1.md",
+    "Concurrent Systems/notes/1 - CS Basics.md",
     "Concurrent Systems/slides/class 1.pdf",
     "Data and Network Security/slides/2025 - DNS - Lecture 2.pdf",
     "Concurrent Systems/notes/images/Pasted image 20250303093116.png",

Concurrent Systems/notes/1 - CS Basics.md

@@ -6,26 +6,26 @@
 - If the process follows one single control flow (i.e. one program counter) then it is a **sequential process**, or **thread**.
 - A set of sequential state machines that run simultaneously and interact through shared memory through a *shared medium* is called **concurrency**.
 
-In a concurrent system there must be something shared.
+>[!note]
+*"In a concurrent system there must be something shared"*
 
-##### Advantages of concurrent systems:
+#### Advantages of concurrent systems
 - efficiency: can run different stuff in parallel
 - simplification of the logic by dividing the task in simpler tasks, running them in different processes and combining the results together.
 
-### Features of a concurrent system
+#### Features of a concurrent system
 We can assume many features:
 - Reliable vs Unreliable
 - Synchronous vs Asynchronous
 - Shared memory vs Channel-based communication
 
-**Reliable** system: every process correctly executes its program
+- **Reliable** system: every process correctly executes its program.
+- **Asynchronous:** no timing assumption (every process has its own clock, which are independent one from the other).
+- **Shared medium:** A way is through a shared memory area, another way is through message passing.
 
-**Asynchronous:** no timing assumption (every process has its own clock, which are independent one from the other)
+>[!info] For this part of the course we assume that every process has a local memory but can access a shared part of the memory. We will assume that memory is split into registers (will see later).
 
-**Shared medium:** A way is through a shared memory area, another way is through message passing.
-For this part of the course we assume that every process has a local memory but can access a shared part of the memory. We will assume that memory is split into registers (will see later).
-
-For now, we will assume that processes won't fail.
+**For now, we will assume that processes won't fail.**
 We also assume that we have one processor per process. But actually the processor can be a shared resource (more processes than processors).
 
 ### Synchronization: cooperation vs competition