diff --git a/content/notes/13-ssh.md b/content/notes/13-ssh.md
new file mode 100644
index 000000000..ec203fc51
--- /dev/null
+++ b/content/notes/13-ssh.md
@@ -0,0 +1,28 @@
+---
+title: "13-ssh"
+tags: 
+- lecture
+- cosc301
+---
+
+What is a terminal?
+- An electronic device used for entering data into, and displaying data from a computer 
+	- Dumb terminal (thin client): no local processing ability 
+	- Smart terminal (fat client): has local processing ability
+![300](https://i.imgur.com/HSo19Rt.png)
+
+> [!INFO] from programmer POV, terminal is the interface associated with a device/program
+
+- Hard-copy terminals 
+	- TeleTYpewriter (TTY) 
+	- DEC VT-100 terminal
+
+- Terminal emulator 
+	- a program that does what a dumb terminal used to do 
+	- Terminal window
+
+![100](https://i.imgur.com/k6YQ2aG.png)
+
+> [!INFO] there are two entities → terminal master/client and terminal client/slave/server. 
+> similar to client server
+> a process can access the pseudo terminal
\ No newline at end of file
diff --git a/content/notes/cosc-301.md b/content/notes/cosc-301.md
index 6acd913da..1677ea201 100644
--- a/content/notes/cosc-301.md
+++ b/content/notes/cosc-301.md
@@ -42,6 +42,7 @@ https://www.cs.otago.ac.nz/cosc301/schedule.php
 - [x] [[10-scheduled-tasks-and-logs]]
 - [ ] [[11-DNS]] need to read about security
 - [ ] [[11-DHCP]] 
+- [ ] [[13-ssh]]
 
 
 # Info