diff --git a/.zk/notebook.db b/.zk/notebook.db
index 484bf31..ce34cda 100644
Binary files a/.zk/notebook.db and b/.zk/notebook.db differ
diff --git a/zk/Headless_network_setup.md b/zk/Headless_Raspi_network_setup.md
similarity index 98%
rename from zk/Headless_network_setup.md
rename to zk/Headless_Raspi_network_setup.md
index ec1f265..21f4787 100644
--- a/zk/Headless_network_setup.md
+++ b/zk/Headless_Raspi_network_setup.md
@@ -5,6 +5,7 @@ tags:
   - networks
   - Linux
   - raspberry-pi
+  - procedural
 created: Wednesday, June 12, 2024
 ---
 
diff --git a/zk/Internet_fundamentals.md b/zk/Internet_fundamentals.md
new file mode 100644
index 0000000..cb44a5c
--- /dev/null
+++ b/zk/Internet_fundamentals.md
@@ -0,0 +1,10 @@
+---
+title: Internet_fundamentals
+tags: [networks]
+created: Saturday, August 03, 2024
+---
+
+# Internet fundamentals
+
+The internet is a _[network](Network_fundamentals.md) of networks_. A globally
+connected set of computer networks that all use a suite of common protocols.
diff --git a/zk/Memory_versus_processor.md b/zk/Memory_versus_processor.md
index de57cb0..6a338dd 100644
--- a/zk/Memory_versus_processor.md
+++ b/zk/Memory_versus_processor.md
@@ -9,5 +9,3 @@ created: Thursday, August 01, 2024
 > Would a more powerful processor with average or reduced memory capacity
 > perform better than, equal to, or less than a less powerful processor with
 > more memory, in principle?
-
-## Related notes
diff --git a/zk/Network_fundamentals.md b/zk/Network_fundamentals.md
new file mode 100644
index 0000000..2d8456b
--- /dev/null
+++ b/zk/Network_fundamentals.md
@@ -0,0 +1,19 @@
+---
+title: Network_fundamentals
+tags: [networks, network-protocols]
+created: Saturday, August 03, 2024
+---
+
+# Network fundamentals
+
+> A network is a system that allows computing devices to communicate and
+> exchange information with each other.
+
+In order for devices to be able to communicate they must share a common
+**communication protocol**.
+
+A protocol specifies **rules determining how information is to be exchanged**.
+(Simply connecting two devices is not sufficient for them to be able to
+communicate, they must have a shared language.)
+
+The nodes of a network are called [hosts](Network_hosts.md).
diff --git a/zk/Network_hosts.md b/zk/Network_hosts.md
new file mode 100644
index 0000000..2584333
--- /dev/null
+++ b/zk/Network_hosts.md
@@ -0,0 +1,22 @@
+---
+title: Network_hosts
+tags: [networks]
+created: Saturday, August 03, 2024
+---
+
+# Network_hosts
+
+A network **host** or **node** is a single computing device attached to a
+![network](Network_fundamentals.md).
+
+Hosts can act as servers or clients, or both.
+
+## Server
+
+A network server is a host that listens for inbound network connections and
+provides services to other hosts. Examples include web and email servers.
+
+## Client
+
+A network client is a host that makes outbound connections and requests servcies
+from network servers.
diff --git a/zk/Network_protocols.md b/zk/Network_protocols.md
new file mode 100644
index 0000000..70ea9e2
--- /dev/null
+++ b/zk/Network_protocols.md
@@ -0,0 +1,12 @@
+---
+title: Network_protocols
+tags: [networks]
+created: Saturday, August 03, 2024
+---
+
+# Network protocols
+
+Protocols are agreed standards specifying and governing communication between
+nodes on a [network](Network_fundamentals.md).
+
+Network protocols are typically _layered_.
diff --git a/zk/Torrenting.md b/zk/Torrenting.md
new file mode 100644
index 0000000..1b45d07
--- /dev/null
+++ b/zk/Torrenting.md
@@ -0,0 +1,10 @@
+---
+title: Torrenting
+tags: [question]
+created: Saturday, August 03, 2024
+---
+
+# Torrenting
+
+**What is torrenting? Is this the same thing as a peer-to-peer network? How do
+these technologies fit within the client-server paradigm?**