By Vasudev Ram
This is a video about Unix history by Rob Pike, Unix veteran and co-creator of the Go programming language.
The History of Unix, Rob Pike
The video is also embedded below.
There is also a current HN thread about it.
- Enjoy.
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Showing posts with label operating-systems. Show all posts
Showing posts with label operating-systems. Show all posts
Saturday, November 10, 2018
Friday, December 23, 2016
Using psutil to get disk partition information with Python
By Vasudev Ram
psutil is a Python library that enables you to get various kinds of operating system information, such as about CPUs, processes, memory and disks.
Here is a short program that shows how to get information about the disk partitions on your computer using psutil:
(Check out py, the Python launcher, if you don't already use it.)
Explanation of the above output:
The Drive column shows the drive letter.
The Type column shows the file system type of the partition.
The Opts column shows what options were used while mounting the device on the drive.
Mounting is the operation of logically associating a drive name or a path name with a file system (on a partition or physical drive), and making it accessible under that drive or path name.
For this run, it shows that:
C drive is an NTFS partition (Windows NT File System) and is mounted in read-write mode and is a fixed disk;
E drive is a CDFS partition (CD-ROM File System) and is mounted in read-only mode.
Here is a video about how a hard disk drive works:
- Vasudev Ram - Online Python training and consulting Get updates (via Gumroad) on my forthcoming apps and content. Jump to posts: Python * DLang * xtopdf Subscribe to my blog by email My ActiveState Code recipesFollow me on: LinkedIn * Twitter Managed WordPress Hosting by FlyWheel
psutil is a Python library that enables you to get various kinds of operating system information, such as about CPUs, processes, memory and disks.
Here is a short program that shows how to get information about the disk partitions on your computer using psutil:
from __future__ import print_function
import psutil
dps = psutil.disk_partitions()
fmt_str = "{:<8} {:<7} {:<7}"
print(fmt_str.format("Drive", "Type", "Opts"))
# Only show a couple of devices.
for i in (0, 2):
dp = dps[i]
print(fmt_str.format(dp.device, dp.fstype, dp.opts))
Running the program gives this output:$ py -3 psutil_disk_partitions.py Drive Type Opts C:\ NTFS rw,fixed E:\ CDFS ro,cdrom
(Check out py, the Python launcher, if you don't already use it.)
Explanation of the above output:
The Drive column shows the drive letter.
The Type column shows the file system type of the partition.
The Opts column shows what options were used while mounting the device on the drive.
Mounting is the operation of logically associating a drive name or a path name with a file system (on a partition or physical drive), and making it accessible under that drive or path name.
For this run, it shows that:
C drive is an NTFS partition (Windows NT File System) and is mounted in read-write mode and is a fixed disk;
E drive is a CDFS partition (CD-ROM File System) and is mounted in read-only mode.
Here is a video about how a hard disk drive works:
- Vasudev Ram - Online Python training and consulting Get updates (via Gumroad) on my forthcoming apps and content. Jump to posts: Python * DLang * xtopdf Subscribe to my blog by email My ActiveState Code recipesFollow me on: LinkedIn * Twitter Managed WordPress Hosting by FlyWheel
Tuesday, January 29, 2013
BareMetalOS, x86-64 OS in assembly language
Return Infinity - BareMetal OS
It is being written purely in assembly language, with plans to let apps for it be written in assembly or C.
Programming in assembly language is interesting and fun, because you work very close to the actual hardware, dealing with registers, memory locations, addressing modes, bit manipulation, etc.
I've only done a little of it, much earlier, on the Commodore-64, the BBC Micro, and PCs running DOS, but enjoyed it.
I once bought a book that had the entire listing for a C-64 assembler, written in BASIC, using POKE, and entered it into the machine, including re-entering a large part of it due to finding bugs, probably due to typos while entering the hex codes. IIRC, it took me the better part of a week to complete that job and get a running assembler, but it worked :)
Thursday, October 18, 2012
Kaspersky Lab developing its own operating system?
By Vasudev Ram
Kaspersky Labs, the maker of popular anti-virus / anti-malware software, is developing its own operating system, according to this post on founder Eugene Kaspersky's blog.
WIRED article about Kaspersky operating system.
Engadget article about Kaspersky operating system.
The Register, UK, on the same topic.
- Vasudev Ram - Dancing Bison Enterprises
Kaspersky Labs, the maker of popular anti-virus / anti-malware software, is developing its own operating system, according to this post on founder Eugene Kaspersky's blog.
WIRED article about Kaspersky operating system.
Engadget article about Kaspersky operating system.
The Register, UK, on the same topic.
- Vasudev Ram - Dancing Bison Enterprises
Tuesday, July 3, 2012
Mozilla to launch HTML5 based mobile OS with broad telecom industry support
Mozilla Gains Global Support For a Firefox Mobile OS | The Mozilla Blog
Interesting indeed. If it works out it should spur more competition, choice for users, and innovation.
- Vasudev Ram
www.dancingbison.com
Friday, April 13, 2012
Article - Introduction to virtualization
http://kernelthread.com/publications/virtualization/
It's by Amit Singh, CEO of stealth mode startup osmeta, which I blogged about recently.
- Vasudev Ram
www.dancingbison.com
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