diff --git a/CHANGELOG.md b/CHANGELOG.md
index 695e2d5..0257d5e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,7 +30,7 @@ For major (breaking) changes - version 3 and 2 see end of page.
 
 | Version        | Date           | Comment  |
 | -------------- | -------------- | -------- |
-| 5.1.0          | 2020-02-08     | `memLayout()` added ECC flag |
+| 5.1.0          | 2020-02-08     | `memLayout()` added ECC flag, `bios()` added language, features (linux) |
 | 5.0.11         | 2020-02-07     | `fsSize()` fixed windows WSL issue |
 | 5.0.10         | 2020-02-06     | `getDynamicData()` fixed windows WSL issue |
 | 5.0.9          | 2020-02-02     | `fsSize()` fixed parsing edge case issue mac OS |
diff --git a/README.md b/README.md
index 602b5ef..98cd8c9 100644
--- a/README.md
+++ b/README.md
@@ -101,7 +101,7 @@ si.cpu()
 
 (last 7 major and minor version releases)
 
-- Version 5.1.0: `memLayout()` added ECC flag
+- Version 5.1.0: `memLayout()` added ECC flag, `bios()` added language, features (linux)
 - Version 5.0.0: new version 5 - attention there are some breaking changes. See [detailed version 5 changes here][changes5-url].
 - Version 4.34.0: `system()` added flag virtual (linux, windows)
 - Version 4.33.0: `graphics()` added nvidia-smi support (linux, windows)
diff --git a/docs/history.html b/docs/history.html
index d3582d9..465e47e 100644
--- a/docs/history.html
+++ b/docs/history.html
@@ -59,7 +59,7 @@
                   <tr>
                     <th scope="row">5.1.0</th>
                     <td>2020-02-08</td>
-                    <td><span class="code">memLayout()</span> added ECC flag</td>
+                    <td><span class="code">memLayout()</span> added ECC flag, <span class="code">bios()</span> added language, features (linux)</td>
                   </tr>
                   <tr>
                     <th scope="row">5.0.11</th>
diff --git a/docs/memory.html b/docs/memory.html
index e70a5c0..f148eee 100644
--- a/docs/memory.html
+++ b/docs/memory.html
@@ -361,6 +361,7 @@ si.memLayout().then(data => console.log(data));</code></pre class="example">
     size: 34359738368,
     bank: 'BANK 0',
     type: 'DDR4',
+    ecc: false,
     clockSpeed: 2667,
     formFactor: 'SODIMM',
     manufacturer: '029E',
@@ -374,6 +375,7 @@ si.memLayout().then(data => console.log(data));</code></pre class="example">
     size: 34359738368,
     bank: 'BANK 2',
     type: 'DDR4',
+    ecc: false,
     clockSpeed: 2667,
     formFactor: 'SODIMM',
     manufacturer: '029E',
diff --git a/docs/system.html b/docs/system.html
index 63d0b6a..7b847b6 100644
--- a/docs/system.html
+++ b/docs/system.html
@@ -292,6 +292,26 @@ si.uuid().then(data => console.log(data));</code></pre class="example">
                     <td></td>
                     <td>revision</td>
                   </tr>
+                  <tr>
+                    <td></td>
+                    <td>language</td>
+                    <td>X</td>
+                    <td></td>
+                    <td></td>
+                    <td></td>
+                    <td></td>
+                    <td>bios language</td>
+                  </tr>
+                  <tr>
+                    <td></td>
+                    <td>features</td>
+                    <td>X</td>
+                    <td></td>
+                    <td></td>
+                    <td></td>
+                    <td></td>
+                    <td>supported features</td>
+                  </tr>
                   <tr class="example">
                     <td></td>
                     <td colspan="7">
@@ -303,7 +323,20 @@ si.bios().then(data => console.log(data));</code></pre class="example">
   vendor: 'American Megatrends Inc.',
   version: 'P4.20',
   releaseDate: '2019-09-05',
-  revision: '5.13'
+  revision: '5.13',
+  langage: 'en',
+  features: [
+    'PCI',
+    'Boot from CD',
+    'Selectable boot',
+    'EDD',
+    'Print screen service',
+    'ACPI',
+    'USB legacy',
+    'BIOS boot specification',
+    'Targeted content distribution',
+    'UEFI'
+  ]
 }</pre>
                   </tr>
                   <tr>
diff --git a/lib/index.d.ts b/lib/index.d.ts
index 552618e..e756431 100644
--- a/lib/index.d.ts
+++ b/lib/index.d.ts
@@ -38,6 +38,8 @@ export namespace Systeminformation {
     version: string;
     releaseDate: string;
     revision: string;
+    language?: string;
+    features?: string[];
   }
 
   interface BaseboardData {
diff --git a/lib/system.js b/lib/system.js
index ab10641..5a89faf 100644
--- a/lib/system.js
+++ b/lib/system.js
@@ -452,9 +452,8 @@ function bios(callback) {
       if (_linux || _freebsd || _openbsd || _netbsd) {
         if (process.arch === 'arm') {
           cmd = 'cat /proc/cpuinfo | grep Serial';
-
         } else {
-          cmd = 'export LC_ALL=C; dmidecode --type 0 2>/dev/null; unset LC_ALL';
+          cmd = 'export LC_ALL=C; dmidecode -t bios 2>/dev/null; unset LC_ALL';
         }
         exec(cmd, function (error, stdout) {
           let lines = stdout.toString().split('\n');
@@ -463,6 +462,20 @@ function bios(callback) {
           let datetime = util.getValue(lines, 'Release Date');
           result.releaseDate = util.parseDateTime(datetime).date;
           result.revision = util.getValue(lines, 'BIOS Revision');
+          let language = util.getValue(lines, 'Currently Installed Language').split('|')[0];
+          if (language) {
+            result.language = language;
+          }
+          if (lines.length && stdout.toString().indexOf('Characteristics:') >= 0) {
+            const features = [];
+            lines.forEach(line => {
+              if (line.indexOf(' is supported') >= 0) {
+                const feature = line.split(' is supported')[0].trim();
+                features.push(feature);
+              }
+            });
+            result.features = features;
+          }
           // Non-Root values
           const cmd = `echo -n "bios_date: "; cat /sys/devices/virtual/dmi/id/bios_date 2>/dev/null; echo;
             echo -n "bios_vendor: "; cat /sys/devices/virtual/dmi/id/bios_vendor 2>/dev/null; echo;