diff --git a/docs/start-here/dec/index.md b/docs/start-here/dec/index.md
new file mode 100644
index 0000000..3dbc90f
--- /dev/null
+++ b/docs/start-here/dec/index.md
@@ -0,0 +1,13 @@
+---
+keywords: ["DEC", "Start Here", "VirtualHub"]
+description: "Operating Systems made by DEC."
+sidebar_position: 3
+---
+
+import DocCardList from '@theme/DocCardList';
+
+# DEC Operating Systems
+
+These operating systems were made by [DEC](https://en.wikipedia.org/wiki/Digital_Equipment_Corporation).
+
+<DocCardList />
diff --git a/docs/start-here/dec/pdp11.md b/docs/start-here/dec/pdp11.md
new file mode 100644
index 0000000..22c8ab7
--- /dev/null
+++ b/docs/start-here/dec/pdp11.md
@@ -0,0 +1,12 @@
+---
+keywords: ["PDP-11", "DEC", "Start Here", "VirtualHub"]
+description: "PDP-11 operating systems made by DEC."
+sidebar_position: 3
+sidebar_label: PDP-11
+---
+
+# DEC PDP-11 Operating Systems
+
+These operating systems were made by [DEC](https://en.wikipedia.org/wiki/Digital_Equipment_Corporation) for their [PDP-11](https://en.wikipedia.org/wiki/PDP-11) computers.
+
+- [! CAPS-11](/1970s/1970/caps-11/)
diff --git a/docs/start-here/dec/pdp15.md b/docs/start-here/dec/pdp15.md
new file mode 100644
index 0000000..6f2c11a
--- /dev/null
+++ b/docs/start-here/dec/pdp15.md
@@ -0,0 +1,13 @@
+---
+keywords: ["PDP-15", "DEC", "Start Here", "VirtualHub"]
+description: "PDP-15 operating systems made by DEC."
+sidebar_position: 4
+sidebar_label: PDP-15
+---
+
+# DEC PDP-11 Operating Systems
+
+These operating systems were made by [DEC](https://en.wikipedia.org/wiki/Digital_Equipment_Corporation) for their [PDP-15](https://en.wikipedia.org/wiki/PDP-15) computers.
+
+- [! ADSS-15](/1970s/1970/adss-15/)
+- [! DOS-15](/1970s/1970/dos-15/)
diff --git a/docs/start-here/dec/pdp7.md b/docs/start-here/dec/pdp7.md
new file mode 100644
index 0000000..226048a
--- /dev/null
+++ b/docs/start-here/dec/pdp7.md
@@ -0,0 +1,12 @@
+---
+keywords: ["PDP-7", "DEC", "Start Here", "VirtualHub"]
+description: "PDP-7 operating systems made by DEC."
+sidebar_position: 1
+sidebar_label: PDP-7
+---
+
+# DEC PDP-7 Operating Systems
+
+These operating systems were made by [DEC](https://en.wikipedia.org/wiki/Digital_Equipment_Corporation) for their [PDP-7](https://en.wikipedia.org/wiki/PDP-7) computers.
+
+- [! DECSys-7](/1960s/1965/decsys/)
diff --git a/docs/start-here/dec/pdp8.md b/docs/start-here/dec/pdp8.md
new file mode 100644
index 0000000..1949c95
--- /dev/null
+++ b/docs/start-here/dec/pdp8.md
@@ -0,0 +1,14 @@
+---
+keywords: ["PDP-8", "DEC", "Start Here", "VirtualHub"]
+description: "PDP-8 operating systems made by DEC."
+sidebar_position: 2
+sidebar_label: PDP-8
+---
+
+# DEC PDP-8 Operating Systems
+
+These operating systems were made by [DEC](https://en.wikipedia.org/wiki/Digital_Equipment_Corporation) for their [PDP-8](https://en.wikipedia.org/wiki/PDP-8) computers.
+
+- [! 4K DMS](/1960s/1965/4kdms/)
+- [! TSS/8](/1960s/1968/tss8/)
+- [! OS/8](/1970s/1971/os8/)
diff --git a/docs/start-here/index.md b/docs/start-here/index.md
index f83a8f6..2604528 100644
--- a/docs/start-here/index.md
+++ b/docs/start-here/index.md
@@ -8,13 +8,6 @@ description: "Categorizing the tutorials on basis of type of OS."
 
 This page categorizes the tutorials on basis of type of OS. If you are interested in operating systems from specific years, use the navigation bar above and choose the appropriate decade under "OSs".
 
-<div className='container'>
-  <div className="row">
-    <div className="col text--center padding-horiz--md padding-vert--md">
-      <a href="/start-here/unix" className="button button--primary">Unix</a>
-    </div>
-    <div className="col text--center padding-horiz--md padding-vert--md">
-      <a href="/start-here/others" className="button button--primary">Other Operating Systems</a>
-    </div>
-  </div>
-</div>
+- [Unix](/start-here/unix)
+- [DEC Operating Systems](/start-here/dec)
+- [Other Operating Systems](/start-here/others)
diff --git a/docs/start-here/others/1960s.md b/docs/start-here/others/1960s.md
deleted file mode 100644
index 5ce6521..0000000
--- a/docs/start-here/others/1960s.md
+++ /dev/null
@@ -1,14 +0,0 @@
----
-keywords: ["1960s", "Others", "Start Here", "VirtualHub"]
-description: "Operating Systems released in the 1960s, which do not fit in other categories."
-sidebar_position: 1
-sidebar_label: 1960s
----
-
-# Other OSs from 1960s
-
-Operating Systems released in the 1960s, which do not fit in other categories.
-
-- [! DECSys-7](/1960s/1965/decsys/)
-- [! 4K DMS](/1960s/1965/4kdms/)
-- [! TSS/8](/1960s/1968/tss8/)
diff --git a/docs/start-here/others/1970s.md b/docs/start-here/others/1970s.md
index d31b229..8e96407 100644
--- a/docs/start-here/others/1970s.md
+++ b/docs/start-here/others/1970s.md
@@ -1,7 +1,7 @@
 ---
 keywords: ["1970s", "Others", "Start Here", "VirtualHub"]
 description: "Operating Systems released in the 1970s which, do not fit in other categories."
-sidebar_position: 2
+sidebar_position: 1
 sidebar_label: 1970s
 ---
 
@@ -9,8 +9,4 @@ sidebar_label: 1970s
 
 Operating Systems released in the 1970s, which do not fit in other categories.
 
-- [! CAPS-11](/1970s/1970/caps-11/)
-- [! ADSS-15](/1970s/1970/adss-15/)
-- [! DOS-15](/1970s/1970/dos-15/)
-- [! OS/8](/1970s/1971/os8/)
 - [Alto OS](/1970s/1973/alto-os/)
diff --git a/docs/start-here/others/index.md b/docs/start-here/others/index.md
index 099833c..33b75ed 100644
--- a/docs/start-here/others/index.md
+++ b/docs/start-here/others/index.md
@@ -1,7 +1,7 @@
 ---
 keywords: ["Others", "Start Here", "VirtualHub"]
 description: "Operating Systems which are unique and do not fit in other categories."
-sidebar_position: 3
+sidebar_position: 4
 ---
 
 import DocCardList from '@theme/DocCardList';