Lets build a circuit that displays an image on a VGA monitor! In this video, I talk about how VGA signals work and build a circuit that provides the correct timing of sync signals so that a monitor recognizes the signal.
Special thanks to these supporters for making this video possible:
Ben Dyson
Ben Kamens
Ben Williams
Christopher Blackmon
Debilu Krastas
Eric Dynowski
fxshlein
Gonzalo Belascuen
Ian Tait
Jay Binks
Jayne Gabriele
Johnathan Roatch
Jordan Scales
Manne Moquist
Marcus Classon
Michael Burke
Mirko Rener
Nicholas Moresco
Nick Wrightsman
Onion Sniffer
Paul Pluzhnikov
Randy True
Ric Allinson
Robert Butler
Sachin Chitale
SonOfSofaman
Vladimir Kanazir
Örn Arnarson
Special thanks to these supporters for making this video possible:
Alex Catchpole
Armin Brauns
BakerStaunch
Beau-James Erion
Ben
Ben Dyson
Ben Kamens
Ben Williams
Bradley Pirtle
Christopher Blackmon
Clayton Parker Coleman
Daniel Tang
Dean Winger
Debilu Krastas
Dominic Kulmer
Dušan Dželebdžić
Eric Brummer
Eric Dynowski
Erik Broeders
Eugene Bulkin
fxshlein
HaykH
Ian Tait
Ivan Sorokin
JavaXP
Jay Binks
Jayne Gabriele
Jefferson Hunt
Jimmy Campbell
Joel Messerli
Joel Miller
Jordan Scales
Joshua King
Justin Duch
Kent Collins
Manne Moquist
Marcus Classon
Mats Fredriksson
Michael
Michael Burke
Michael Garland
Miguel Ríos
Nathan Wachholz
Nicholas Moresco
Onion Sniffer
Paul Pluzhnikov
Peter Simard
Randy True
Robert Butler
Sachin Chitale
Sergey Ten
SonOfSofaman
Stefan Nesinger
Stephen Smithstone
Steve Gorman
Thomas Ballinger
Vladimir Kanazir
xisente
Örn Arnarson
Software and technology has changed every aspect of the world we live in. At one extreme are the ‘mission critical’ applications — the code that runs our banks, our hospitals, our airports and phone networks. Then there’s the code we all use every day to browse the web, watch movies, create spreadsheets… not quite so critical, but still code that solves problems and delivers services.
But what about the code that only exists because somebody wanted to write it? Code created just to make people smile, laugh, maybe even dance? Maybe even code that does nothing at all, created just to see if it was possible?
Join Dylan Beattie — programmer, musician, and creator of the Rockstar programming language — for an entertaining look at the art of code. We’ll look at the origins of programming as an art form, from Conways Game of Life to the 1970s demoscene and the earliest Obfuscated C competitions. We’ll talk about esoteric languages and quines — how DO you create a program that prints its own source code? We’ll look at quine relays, code golf and generative art, and we’ll explore the phenomenon of live coding as performance — from the pioneers of electronic music to modern algoraves and live coding platforms like Sonic Pi.
Было ли вам когда-нибудь трудно что-либо найти или понять, где установлены программы в Linux? Вот объяснение, для чего все эти папки и что в них находится!
Поддержать меня на Patreon: www.patreon.com/doriandotslash
Music by MrGamer (@AndreasRohdin): soundcloud.com/gamermachine
A system administrator, or sysadmin, is a person who is responsible for the upkeep, configuration, and reliable operation of computer systems; especially single-user computers, such as servers. The system administrator seeks to ensure that the uptime, performance, resources, and security of the computers they manage meet the needs of the users, without exceeding a set budget when doing so.
To meet these needs, a system administrator may acquire, install, or upgrade computer components and software; provide routine automation; maintain security policies; troubleshoot; train or supervise staff; or offer technical support for projects
Introduction to System Administration and IT Infrastructure Services
Course Introduction
What is Systems Administration?
Servers Revisited
The Cloud
Systems Administration Tasks
Organizational Policies
IT Infrastructure Services
User and Hardware Provisioning
Routine Maintenance
Vendors
Troubleshooting and Managing Issues
In Case of Fire, Break Glass
What are IT Infrastructure Services?
The Role of IT Infrastructure Services in SysAdmin
Types of IT Infrastructure Services
Server Operating Systems
Virtualization
Remote Access Revisited
Network Services
FTP, SFTP, and TFTP
NTP
Network Support Services Revisited
DNS
DNS for Web Servers
DNS for Internal Networks
DHCP
Troubleshooting Network Services
LectureUnable to Resolve a Hostname or Domain Name
Software Services
Configuring Communication Services
Configuring Email Services
Configuring User Productivity Services
Configuring Security Services
Heather Managing Self Doubt
File Services
What are file services?
Network File Storage
Print Services
Configuring Print Services
Platform Services
Web Servers Revisited
What is a database server?
Is the website down?
Introduction to Directory Services
What is a directory server?
Implementing Directory Services
Centralized Management
What is centralized management?
LDAP
What is LDAP?
What is LDAP Authentication?
Heather Overcoming Obstacles
Active Directory
What is Active Directory?
Managing Active Directory
Managing Active Directory Users and Groups
Joining an Active Directory Domain
What is Group Policy?
Group Policy Creation and Editing
Group Policy Inheritance and Precedence
Group Policy Troubleshooting
What is OpenLDAP?
Managing OpenLDAP
Planning for Data Recovery
LectureWhat is Data Recovery?
Backing Up Your Data
Backup Solutions
Testing Backups
Types of Backup
User Backups
Disaster Recovery Plans
Whats a Disaster Recovery Plan?
Designing a Disaster Recovery Plan
*******************************************************************
Credit: The creator of this contents is Google.
License: Creative Commons Attribution-ShareAlike 4.0 International License
You can take this professional certificate here: www.coursera.org/specializations/google-it-support
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In this course you will learn the most basic of Information technology. No matter you are complete beginner or want to be IT professional, then this IT fundamental course is the right
course for you to start. You will learn everything you need to know about IT. You will learn each and every basic of IT and develop strong skill and understanding of information technology.
*******************************************************************
Credit: The creator of this contents is Google ( Team: Grow with Google )
License: Creative Commons Attribution-ShareAlike 4.0 International License
You can take this professional certificate here: www.coursera.org/specializations/google-it-support
**************************************************************
Have you ever wondered how your smartphone can store countless pictures, songs, or videos? Or, have you wondered when you download a podcast to your smartphone, where does it actually get stored? In this video, we will open up your smartphone and take a look at the inside of the memory storage microchip. This same microchip is also used to store data in solid-state drives, or SSDs in your computer, in tablets, and inside flash drives. The technology is called VNAND or V-NAND, and its incredible how engineers were able to fit such an insane amount of memory storage capacity in such a small space.
Do you want to support in-depth engineering and technology education? Join our YouTube Membership!
Timestamps:
0:00 — Intro into SSDs
2:06 — Example of Saving a Picture
4:17 — Pixel Calculations
5:19 — Single Memory Cell
7:59 — Vertical Strings and Pages
10:34 — Control Gates of VNAND
12:00 — Calculations of Example Array
13:09 — True size of an SSD microchip
14:50 — Overall chip in an SSD
16:07 — Outro
16:32 — Creators comments
16:54 — Future Episodes
This video is part of a series that intends to thoroughly explain how SSDs, and more specifically how VNAND works. These are the episodes in the series:
1) [18min] Overview on how SSDs / VNAND / Smartphone storage works.
2) [3min] Quick/Abridged episode of the overview
3) How charge trap flash works. (details on a single memory cell)
4) How strings of memory cells work (details on a stack of memory cells)
5) How a massive array of memory cells are organized. (Terabit Cell Array Transistor, TCAT)
6) How is VNAND manufactured?
7) Possible episode on an analogy using a city
Go inside the computer to uncover the inner workings of the CPU including the Control Unit, the ALU, registers and much more.
But How Do It Know website: www.buthowdoitknow.com/
See the 6502 CPU Simulation: visual6502.org/JSSim/index.html
The CPU design used in the video is copyrighted by John Scott, author of the book But How Do It Know?..
There are a few small differences between the CPU in the video and the one used in the book. Those differences are listed below but they should not detract from your understanding of either.
CONTROL UNIT — This component is called the Control Section in the book. It is called Control Unit here simply because that is a more common name for it that you might see used elsewhere.
LOAD INSTRUCTION — In this video, whats called a LOAD instruction is actually called a DATA instruction in the book. The Scott CPU uses two different instructions to move data from RAM into the CPU. One loads the very next piece of data (called a DATA instruction in the book) and the other uses another register to tell it which address to pull that data from (called a LOAD instruction in the book). The instruction was renamed in the video for two reasons: 1) It might be confusing to hear that the first type of data we encounter in RAM is itself also called DATA. 2) Since the LOAD instruction from the book is a more complex concept, it was easier to use the DATA instruction in the video to introduce the concept of moving data from RAM to the CPU.
IN and OUT INSTRUCTIONS — In the Scott CPU, there is more involved in moving data between the CPU and external devices than just an IN or an OUT instruction. That process was simplified in the video to make the introduction of the concept easier.
ACCUMULATOR — The register that holds the output of the ALU is called the Accumulator in the book. That is the name typically used for this register, although it was simply called a register in the video.
MEMORY ADDRESS REGISTER — The Memory Address Register is a part of RAM in the book, but it is a part of the CPU in the video. It was placed in the CPU in the video as this is generally where this register resides in real CPUs.
JUMP INSTRUCTIONS — In the book there are two types of unconditional JUMP instructions. One jumps to the address stored at the next address in RAM (this is the one used in the video) and the other jumps to an address that has already been stored in a register. These are called JMP and JMPR instructions in the book respectively.
MISSING COMPONENT — There is an additional component missing from the CPU in the video that is used to add 1 to the number stored in a register. This component is called «bus 1» in the book and it simply overrides the temporary register and sends the number 1 to the ALU as input B instead.
REVERSED COMPONENTS — The Instruction Register and the Instruction Address Register are in opposite positions in the diagrams used in the book. They are reversed in the video because the internal wiring of the control unit will be introduced in a subsequent video and keeping these registers in their original positions made that design process more difficult.
OP CODE WIRING — The wires used by the control unit to tell the ALU what type of operation to perform appear near the bottom of the ALU in the video, but near the top of the ALU in the book. They were reversed for a similar reason as the one listed above. The wiring of the ALU will be introduced in a subsequent video and keeping these wires at the top of the ALU made the design process more difficult.
When you first learned to write code, you probably realized that computers dont really have any common sense. You need to tell a computer exactly what you want. But do you know about all the work the computer does to understand what you mean?
0:00 Intro — Where Youve Seen Compilers
1:25 Source Code vs. Machine Code
3:38 Translating Source Code to Machine Code
9:05 How Compilers Make Things Easier
10:39 Outro — The Story of Automation
How are microchips made — from sand to semiconductor: Microelectronics usually is hidden to society – however, it is a constant companion in our daily lives. It tremendously contributes to the ongoing development and digitization of our world. But what is actually behind this technology?
In this video we explain how microchips are made and what conditions are necessary for manufacturing.
Infineon Technologies AG is a world leader in semiconductor solutions that make life easier, safer and greener. Microelectronics from Infineon is the key to a better future.
