We use touchscreen displays for hours every day, but do you know about all the intricate layers and components that make them work? This episode goes into the structure and basic function of a touchscreen display. What goes into making toughened glass strong, how do capacitive touchscreens work, and how do OLEDs work? The merging of these technologies is what arguably makes the smartphone what it is! Take a look and learn more.
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Table of Contents:
00:53 The Layers
01:35 Section 1: Toughened Glass
03:18 Section 2: Capacitive Touchscreen
05:07 Section 3: OLED Display
07:18 Section 4: Summary
07:48 Section 8: Outro
Key Branches from this video are: Multitouch, Electric Fields, Capacitors, OLEDs, LCDs, Material Transparency, Interface Aesthetics
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.
Первый вопрос перед покупкой игрового монитора — зачем он мне нужен? В чем будет разница с моим обычным монитором? На этот вопрос мы и ответим в этом видео на примере игрового монитора ASUS TUF GAMING VG27AQ, разберем типы матриц (VA, IPS, TFT TN), какие функции есть в игровых моделях и вы уже сами решите, нужно вам это или нет.
Это не моток обычной проволоки, это сверхпроводник с четырех тысячами тончайших жилок. Такие сверхмощные провода без сопротивления изготавливают из ниобия и титана, а используют даже для термоядерного реактора. Чтобы узнать, из чего состоит сверхпроводящий кабель, смотрите новую серию!
— Немного истории: как появилась компания МЦСТ — основные вехи.
— Что сделано на сегодня: линейки процессоров, особенности архитектуры Эльбрус, оценка производительности.
— Планы на ближайшее будущее, новые модели процессоров.
— Когда можно ожидать появления массовых и дешёвых машин на основе процессоров Эльбрус.
СМОТРИТЕ БОЛЬШЕ ВИДЕО:
Космос ►http://bit.ly/plKosmos
Все видео ►http://bit.ly/plKosmo
Вселенная ►http://bit.ly/plVselennaya
Илон Маск ►http://bit.ly/plElonMask
Солнечная система ►http://bit.ly/plSolar
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В этом ролике я поясню вам за сборку ПК, да так, что бы в процессе все работало как надо и вы ничего не сломали,
Почти подробный, поэтапный гайд — пособие по сборке компьютера с нуля самому своими руками. Ну а что из этого вышло — решать только вам