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Ruky for Galaxy Z Fold 5 case, Complete Box of Integrated Body Protector Privacy Protector, with magnetic protection and protection against hinge, a PU leather phone case for Samsung Galaxy Z Fold 5, in carbon fiber

Ruky for Galaxy Z Fold 5 case, Complete Box of Integrated Body Protector Privacy Protector, with magnetic protection and protection against hinge, a PU leather phone case for Samsung Galaxy Z Fold 5, in carbon fiber

Product Description

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[Compatible Model] Ruky Kickstand Case for Galaxy Z Fold 5 5G. Package contents include: 1 x Screen Frame [with Screen Protector] + 1 x Z Fold 5 Case with Adjustable Kickstand. Suggestion: remove the case before using wireless charging to ensure better charging.
[Built-in Privacy Screen Protector] Samsung Z Fold 5 case with built-in touch sensitive privacy screen protector, making the screen only visible to people directly in front of the screen. The Z Fold 5 privacy screen will keep all your personal information out of sight of strangers around you, while preventing scratches and cracks on the screen.
[Built-in Magnetic Kickstand] The stylish tough galaxy Z fold 5 kickstand case has horizontal and adjustable viewing angles, helps hands-free for watching, meeting, learning, etc. Very suitable for light luxury lifestyle.
[Slim & Stylish Profile] Made of premium Plating PC material and luxurious lychee texture PU leather with skin-friendly paint for a delicate touch. Slim and lightweight designed, excellent feeling, comfortable, Anti-Slip, and skin-friendly perfect touch.
[Ruky Customer Service] Accurate precision can perfectly fits the position of buttons that is for easy access to all ports and buttons. We provide Lifetime Friendly Customer Service. Please feel free to contact with us if any problem or suggestions.

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Samsung type C fast charger for Samsung Galaxy A14 5G A13 5G A03S A53S A54 A54 A34 A33 / S23 S22 Ultra / S21 Fe / S20 / A04S / Z Flip 4 3 / Z Fold4, Pixel 7, USB C Mural 6ft USBC CABLE CABLE CABLE CABLE

Samsung type C fast charger for Samsung Galaxy A14 5G A13 5G A03S A53S A54 A54 A34 A33 / S23 S22 Ultra / S21 Fe / S20 / A04S / Z Flip 4 3 / Z Fold4, Pixel 7, USB C Mural 6ft USBC CABLE CABLE CABLE CABLE

Product Description

samsung fast charger type csamsung fast charger type c

VIFIGEN USB C Wall Charger Wide Compatibility

PD3.0 Super Fast Charger Compatible with USB-C Fast Charging Devices :

Samsung Galaxy S24 FE, S24, S24 Ultra 5G, S24 Plus, S23, S23 Ultra 5G, S23 FE, S23 Plus, S22, S22 Plus, S22 Ultra 5G

Samsung Galaxy A16 5G,A15 5G,A15, A14 5G, A13 5G, A55 5G, A54 5G, A53, A35, A25, A34, A24, A23, A04S, A03S, A33, A32, A42

Samsung Galaxy S21, S21 Plus, S21 Ultra, S21 FE 5G

Samsung Galaxy Note 20 Ultra 5G, Note 20, Note 10, Note 10 Plus, 9, 8

Samsung Galaxy Z Fold 6 5 4 3, Z Flip 6 5 4 3 2, Z Flip, A3, A5, A6, A7, A8, A9, A10, A11, A12

Samsung Galaxy S20, S20+ 5G, S20 Ultra, S20 FE 5G, S10, S10 Plus, S10e, S9, S9 Plus, S8, S8 Plus

Samsung Galaxy A31, A40, A41, A50, A50S ,A51, A52, A60, A70, A71, A72, A80, A90

iPad Pro 12.9/11 inch (2021/2020/2018), iPad Pro 11 Gen 3/2/1

iPad Air 4th, iPad Mini 6th, Mac Book Air 13 inch/12 inch

Google Pixel 9 Pro Fold, 9 Pro XL, 9 Pro, 9, 8a, 8 Pro, 8, 7a, 7 Pro, 7, 6a, 6 Pro, 6, 5, 4 XL, 4, 3 XL, 3

Google Pixel 2, Pixel 2XL, Pixel XL, Pixel 3A, Pixel 3A XL, Pixel, Pixel C Tab

Motorola Moto G 5G Plus,G Stylus 2022,G10,G9 Play,G8,G7 Plus/Play/Power,G6, Edge,Edge X30,Edge S30

LG G9 ThinQ G8 G8X G8S G7 G6 G5, Stylo 6/5/4, V60 V50 V40 V35 V30S V20 Q9 Q8 Q7+

OnePlus 10 Pro,9RT 5G,9 Pro,9,9R,8T,8 Pro

Super Fast ChargerSuper Fast Charger

USB C Wall ChargerUSB C Wall Charger

samsung galaxy chargersamsung galaxy charger Specifications: Power: 20W Input: AC 100-240V 50/60Hz Output: (Power Delivery 3.0) 5V/3A,9V/2A,12V/1.5A Fast Charging Protocols: PD 3.0/2.0, QC 4.0+/4.0/3.0/2.0, 5V1A Length of cable: 6FT

VIFIGEN 20W Fast USB C Power Adapter

Compatible PD/PPS fast charging protocols, this Samsung super fast charger type c is perfect for PD3.0 devices.

√ Samsung Galaxy A15 A14 5G/S23 Ultra/S23+/S23/S22+/S24: about 1-1.5 hours

√ iPad Pro 12.9/11 inch,iPad Air 5/4,iPad mini 6 & Google Pixel: about 1-2 hours

(Note: The actual charging performance is subject to battery remaining and various external factors.)

6FT Fast Charge & High Speed Data Sync USB C to USB C Cable: USB C to C Cable allows you to easily charge your iPad on different occasion, for travel, home, car, office, etc. USB C to USB-C cable bulit-in E-mark Chip supports data transfer up to 480Mbps. Large Files, Pictures, Videos will be transferred in a few seconds. Type C charging block is made of flame retardant grade material, perfect for heat dissipation. The interior of the cable is made of high-quality copper for durability.

Type C Charging Block Type C Charging Block

Super Fast Charging

Smart IC technology for high-speed charging samsung and other Android Phones, more time saving.Super Fast Charger provides powerful charging for Google Pixel phones, LG, Samsung Tablets, and Notebooks.

charger blockcharger block

Safe & Reliable

Cute & small size, space saving, helpful and portable to carry around.High-quality ABS material shell with fire retardant, heat resistant, drop protection.

USB C ChargerUSB C Charger

Travel Ready

Type C charger block is designed to protect your devices from short-circuit, over heating or overcharging.USB Wall Charger certified ETL, CE, FCC and ROHS, high quality usb charger block, endurable and safety.

USB C to USB C cableUSB C to USB C cable

【Super Fast Charger Type C】Samsung charger type c support PD3.0/QC3.0/QC2.0/2.4A/AFC/FCP fast charging protocol. Type C charger fast charging your Samsung S23 S22 Ultra/S21 FE/ A14 A13 5G/A53/A03s from 5% to 50% in 20 minutes, fully charge in only 1 hour. 4X Faster than an 5W usb c wall charger. (Compatible models: Samsung Galaxy S23 S22 Ultra/ S23/S22+/ S21 FE/ S20/ Galaxy A14 A13 5G/A53 5G/A03s 5G/A12/ iPad Pro 12.9 / Google Pixel 7 Pro/ 7/6 /6Pro.)
【Type C Charger Compatibility】USB C fast chargers high efficient phone charger for Samsung Galaxy S24 FE S24 Ultra S24 S24+ S23 Ultra S23 FE S23+ S22 S21 FE 5G S21+ S21 Ultra S20 S10 S9 S8, Note 20 10 9 8, Galaxy A16 5G,A15 5G,A55,A14 5G,A13 5G,A54,A53,A03s,A23,A15,A25,A24,A04s,A34,F54,F34,A33,A42,F23,A73,A32,A12, Z Flip6 5 4 3,Z Fold6 5 4 3; iPad Pro 12.9/11, iPad Mini, iPad Air; Google Pixel 9 Pro XL,9 Pro,9,8 Pro,8,7a,7 Pro,7,6a,6 Pro,6,5 4 3 2 XL; Moto;LG G8X G8 G7 V60 V50 V40 V35 V30s G6, more USB-C.
【Safety Guarantee】Samsung fast charger type c with built-in smart IC chip supports multiple charging protocols to optimize maximum charging speed for your S24 FE/S24 Ultra and protect your devices against short circuit, excessive current and overcharging. Fire-proof ABS material charger block is perfect for heat dissipation, drop protection, corrosion and scratch resistance.
【60W USB C Cable】USB C to USB C cable, stable data sync speed up to 480Mbps. 6FT length, extra long enough for you to use your Samsung S24 S23 Ultra on the bed or couch comfortably while charging. Type C charging cable with sturdy nylon braided jacket can bear 10000+ bending test, flexible and tangle free, sturdy and ultra durable.
【What You Get】1-Pack USB C Charger + 1-Pack 6FT Type C to C Charging Cable (White). 18-Month W arranty. Please do not hesitate to reach us if any further information required, we are ready here for you.

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Ultraglass Unbrek Top 9h + Glass for Samsung Galaxy S25 Ultra Screen Protector [Military Grade Shatterproof & Longest Durable] Galaxy Screen Protector 25 Ultra Tempered Glass Complete cover, 2 pack

Ultraglass Unbrek Top 9h + Glass for Samsung Galaxy S25 Ultra Screen Protector [Military Grade Shatterproof & Longest Durable] Galaxy Screen Protector 25 Ultra Tempered Glass Complete cover, 2 pack

Product Description

2025 Upgrade! UNBREAK TOP 9H+ Durable Protection for Samsung Galaxy S25 Ultra S24 ultra screen protectorS24 ultra screen protector

samsung galaxy s24 ultra screen protectorsamsung galaxy s24 ultra screen protector

samsung galaxy s24 ultra screen protectorsamsung galaxy s24 ultra screen protector

samsung galaxy s24 ultra screen protectorsamsung galaxy s24 ultra screen protector

S24 ultra screen protectorS24 ultra screen protector

iphone 16 pro max screen protector install

Ultra Fast & Responsive

Real 1:1 bare-screen unlocking

With “2nd-Ultrasonic” technology, fingerprint recognition improves by 191%.

samsung galaxy s24 ultra screen protector

Innovative Dust Removal

Effortless One-Step, Instant Fit

Merge 3 steps into 1, achieving 100% Precision and Zero Dust or Bubbles.

iphone 13 privacy screen protector

Covered curved edges

Real 1:1 Full-screen Coverage

156M+ users like this design: “It’s like there’s nothing on the screen”

samsung galaxy s24 ultra privacy screen protector Smoother Than The Original Screen

Seamless Glide with German Anti-Fingerprint Coating

1 Eye Comfort & Health

Blocks harmful rays and blue light to alleviate eye fatigue and damage

1 Smooth Fingerprint Reader

2 Easy Installation

3 Full Coverage

4 Fingerprint-Free

5 Eye Care

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

What is the difference between this Screen Protector and other Protectors?

Stronger Protection. Adopting the highest standard NanoTech glass hardness (beyond 9H), the bending strength is 3-5 times stronger than other glass, which gets complete protection without damage in daily life.Longer Life Span. The edge material is made of super AB silicone, the most important feature is easy to stick and firm, which can prevent the protector from falling off and make it last up to 1-2 years.More Effective AF coating, providing strong oil repellent and anti-smudge function.

【0.08s Fingerprint Unlock as Effortless as a Bare Screen!】 With pioneering ultra-thin yet highlydurable NanoTech glass and upgraded 2nd-Gen UE Tech (ultrasonic enhancement), fingerprintresponsiveness improves by 191% compared to the previous generation. It delivers a seamless 1:1 original screen unlocking experience. A single press unlocks your device instantly-no morehassle with pressing too hard or trying over and over.
【Unbreakable TOP 9H+ Glass, the 2nd Screen for Your Smartphone】Boasting unparalleled shatter resistance and durability, it is specifically designed for the screen of Samsung Galaxy S25 Ultra.
【What makes its excellent performance?】The core is the top 9H+ tempered glass material, which is widely applied in aerospace and military fields for its ① Shatter-proof ② Scratch & Wear Resistance ③ Durability that is 7-8 times higher than other materials. Thus, UltraGlass builds a second tough screen for your Samsung Galaxy S25 Ultra.
【Industry NO.1 Military-Grade Shatterproof】Authorized by the international Military Standard with 50+ rigorous engineering tests of 220 lbs impact, 8,500+ drop tests, 25,000+ scratch tests, etc., its strength, toughness and durability perform NO.1 among all glass. By especially breaking the industry’s record with a 12-foot drop, the screen protector Samsung Galaxy S25 Ultra is ensured to be unbreakable from its surface to every edge and corner.
【0 Bubbles + 0 Dust + 0 Misaligned =100% Successful Installation】 Includes everything you need with innovative automatic alignment, dust removal, and bubble-free technology. The installation becomes effortlessly easy in seconds. Anyone can be an expert in applying this screen protector without dust, bubbles or other imperfections!Installation allows you to rescan your fingerprint and adjust touchscreen sensitivity.
【Top-Quality, Bold Commitment-We Stand Behind Our Products】UltraGlass (Samsung Series) has sold over 156 million products worldwide, always dedicated to top-quality and assistance. We offer 24/7 online help. This package includes 2* Samsung Galaxy S25 Ultra screen protectors, 1*installation tool, 2*cleaning kits, and 1*bubble scraper. If you have any needs, just contact us, and we’ll take care of it!

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Macintosh: a computer and his colleague (German edition)

Macintosh: a computer and his colleague (German edition)

Publisher ‏ : ‎ Vieweg+Teubner Verlag; 1984th edition (January 1, 1984)
Language ‏ : ‎ German
Paperback ‏ : ‎ 199 pages
ISBN-10 ‏ : ‎ 3528043261
ISBN-13 ‏ : ‎ 978-3528043261
Item Weight ‏ : ‎ 10.4 ounces
Dimensions ‏ : ‎ 6.1 x 0.46 x 9.25 inches

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DVD DVD DVD DVD disc Portable DVD Disk Disk Disk Disk Disk Disk Disk for USB 3.0 Type C, with 2 USB Rom Optical Play ports

DVD DVD DVD DVD disc Portable DVD Disk Disk Disk Disk Disk Disk Disk for USB 3.0 Type C, with 2 USB Rom Optical Play ports

From the brand

External CD/DVD DriveExternal CD/DVD Drive

Mfcir looks forward to collaborating with global partners to create a brilliant future.

about mfcirabout mfcir

Mfcir is a company dedicated to the design, production, and sales of electronic product peripherals. Since its inception, we have been committed to providing high-quality and innovative accessories to global consumers, catering to the ever-evolving technological needs and market trends.

multifunctional Optical Drivemultifunctional Optical Drive

It has 1 USB2.0 ports and 1 USB3.0 port. It also has slots for both SD and Micro SD cards, or TF and SD cards.

External CD Drive for LaptopExternal CD Drive for Laptop

This is a DVD and CD external disk drive.It can erase and write a rewritable CD or DVD too. This drive is also a USB hub!

High Writing and Reading Speed: External CD Drive supports playing music, movies or copying/burning movies and music to DVD or CD. Maximum DVD 8x and 24x CD writing speed, and maximum DVD 8x and 24x CD reading speed.
multifunctional Optical Drive: The mfcir external optical drive not only read and writing CD DVD, but also can be used as an external laptop USB hub, including 1 USB 3.0 port, 1 USB 2.0 port, TF card, SD card slot, compatible with usb hard drive, flash drive, mouse, keyboard and other usb computer accessories. The card slots are perfect for transferring files by your camera from cards to your computer.(Note: SD port and TF port cannot be used at the same time. )
2 in 1 USB 3.0 Data Cable:The built in USB-C & USB 3.0 connectors of the disk drive are built into the cable(on the back of the CD drive),bringing you faster data transmission speed (up to a maximum of 5Gbps) ,Besides that, The cd drive offers Max 8x DVDR Read Speed and Max 24x CD Write/Read speed
Plug and Play: connect the external cd dvd drive directly to your USB or type C port from your PC, wait for the drive to finish installing automatically, open the compartment door, insert the disc and it will be detected and used immediately (for desktops, please connect it to the USB port on the back or you can use charging cable to connect a power bank to power your optical drive to avoid power shortage).
Wide Compatibility:The Mfcir External DVD Drive ideals for various devices,Windows 11/10/8.1/7/XP/2003/Vista, Linux, all version Mac OS (8.6 to 10.14) system, Enjoy support for reading and writing CD±R/RW, CD-ROM, DVD±R/RW, DVD-RAM, VCD, and SVCD disks.compatible with laptops, computers, notebooks, and desktops.( NOTE:TV, car player, Chromebook, Surface Pro, Ubuntu, tablet and mobile phone are not supported)

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Smart Watch for Men Women Alexa Integrated, 1.83 “Fitness tracker Watch Smart for compatible Android iPhone, IP68 Sports IPAPPHERPOR 100+, podometer, cardiac frequency / sppo2 / stress / sleep monitor

Smart Watch for Men Women Alexa Integrated, 1.83 “Fitness tracker Watch Smart for compatible Android iPhone, IP68 Sports IPAPPHERPOR 100+, podometer, cardiac frequency / sppo2 / stress / sleep monitor

Product Description

smart watchsmart watch

smart watch for men womensmart watch for men women

smart watch for men womensmart watch for men women

smart watch for men womensmart watch for men women

smart watch for men womensmart watch for men women

smart watch for iphone compatiblesmart watch for iphone compatible

smart watch for android phonesmart watch for android phone

【Alexa Built-in】 Enjoy the convenience of Alexa on your wrist! With Choiknbo smart watch, you can control your smart home devices, set reminders,get weather updates and more all from your wrist. Simply download the “VeryFit” app from the App Store, connect to your watch via Bluetooth, and enjoy the convenience of Alexa on your smartwatch.
【100+ Sports Modes Fitness Tracker】The fitness smart watch can accurately record your steps, calories, distance, heart rate and blood oxygen and detect your health status and real-time activity status. 100+ sports modes to choose such as walking, running, cycling, hiking, yoga and more. Gives you a detailed look at activities throughout the day.
【Make/Answer Calls & Read Message】The bluetooth call smartwatch features call functionality, allowing you to answer and make calls directly from your wrist, which is incredibly convenient during workouts or when your phone is out of reach. You can also add favorite contacts and check call logs. In addition, the smart watches for men can also receive other notifications. Such as WhatsApp, Twitter, Facebook, Instagram, etc. You will not miss any information.
【24/7 Health Monitoring Fitness Watch】The sports watches for men provides 24-hour management of your health. The one-click measurement function can monitor your blood oxygenand heart rate status. You can view this data directly in real time on your pedometer and more detailed data can be displayed in the app. Also, the smart watch for android phones tracks sleep cycles, providing information on the quality of your night’s rest, which will help you to lead a healthier life.
【Multifunctional & Smart Assistant】This smart watch for iphone compatible has many daily practical functions, such as weather forecasts, music control, , camera control, smart alarm clock timer, find phone, sedentary reminder and others.

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Phone Halder Dinger Kickstand 360 ° Rotation of mobile phone Prip Plip Roldable Telephone for the desk compatible with iPhone iPad Smartphones Tablets (with Universal Magnetic Car Mount)

Phone Halder Dinger Kickstand 360 ° Rotation of mobile phone Prip Plip Roldable Telephone for the desk compatible with iPhone iPad Smartphones Tablets (with Universal Magnetic Car Mount)

From the brand

Go for InnovationGo for Innovation

Go for Innovation

Mindsky kindle the spark of innovation in the digital age.

Magsafe Phone Ring Holder

Phone Mount For Car Monitor

Phone Ring Holder

【Phone Grip+Magnetic Car Mount】The package includes a phone ring holder and a magnetic phone mount. We can put the Magnetic Car Mount stick on kitchens, offices, cabinets and then magnet the phone on it. it also compatible with various car models. You can simply attach or remove your phone with one hand and prevent the mobile phone from falling off when driving on a rugged mountain road.
【Flexible Multi-Angle Design】 360° Rotation and 2 adjustable arms make it more convenient to provide you more viewing angles than any other cell phone ring holder or phone stand. The phone finger ring is tested to withstand 10000 times of folding without getting loose.
【Premium Material】The phone ring holder grip is made of high quality zinc alloy metal material, features its ultra-durability that keeps fresh and unfading colors as new even after using for a long time. With powerful and sticky New Version 3M tape attaching well to smartphones, tablets, kindles and switch lite. We will provide an electrostatic disc, help to stick firmly on smooth plastic, TPU, metal or most phone /phone case. It will NOT stick to fabric, glass, liquid silicone or non-flat textured surfaces.
【Ring Grip and Table Stand 2in1】Double folded design provides infinite possibilities. The ring grip can perfectly adapt to various occasions, prevent your phone slipping from your hands on crowded bus and subways. Secure your phone for walking, traveling, hiking, playing game, selfies by one hand. Also a perfect solution to place your smartphone on office desk, kitchen counter or bedside table.
【NO WORRIES】If there are any quality issues with this phone kickstand, please don’t worry. We will provide 24h*7day timely customer service to solve the problem better. If you don’t like the phone grip for whatever reason, we’ll refund you or replace it.

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Thephotostick® OMNI 256 GB – Secret and transfer of video and transfer | Organization of digital files | USB and Multiport connection for phones, tablets and computers | Portable memory | External storage

Thephotostick® OMNI 256 GB – Secret and transfer of video and transfer | Organization of digital files | USB and Multiport connection for phones, tablets and computers | Portable memory | External storage

From the brand

ThePhotoStick Brand StoryThePhotoStick Brand Story

ThePhotoStick is trusted by 2million+ customersThePhotoStick is trusted by 2million+ customers

Protect and organize a lifetime of memories with ThePhotoStick Omni.Protect and organize a lifetime of memories with ThePhotoStick Omni.

ThePhotoStick Omni works with Android, Windows, macOS and iOS.ThePhotoStick Omni works with Android, Windows, macOS and iOS.

Keep Your Memories Safe

ThePhotoStick Omni has been featured on ABC, FOX, NBC and more!ThePhotoStick Omni has been featured on ABC, FOX, NBC and more!

Keeps Your Files Safe & Organized – Never worry about your computer crashing or losing files in the cloud again. ThePhotoStick Omni securely backs up each file and automatically organizes them neatly into folders so they’re easy to find.
Massive Storage Capacity – Back up over 102,400 photos and videos and easily access them when you’re ready to view them.
Works On Many Devices – ThePhotoStick Omni works on PC and Mac computers, iPhones and iPads, and most Android smartphones and tablets. Safely and easily store your precious photo and video memories, no matter where they are, with one device.
Super Easy To Use – Simply download the app, plug the adapter into your device, and let ThePhotoStick get to work!
Saved File Types – It saves your standard JPEG, HEIC, PNG, GIF, MOV, and MPEG4, but it also saves a vast array of file types.
Compatible Devices – PC, Mac, iOS and most Android or Windows smartphones and tablets.
System Requirements – Android OS 8.0 and Later | iOS and iPadOS 13.0 and Later | Windows 7 SP1 and Later | Mac OS X Version 10.13 and Later

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HP 952 cyan, magenta, yellow ink cartridges (3) | Work with HP Officejet 8702, HP Officejet Pro 7720, 7740, 8210, 8710, 8720, 8730, 8740 Series | Eligible for instant ink | N9k27an

HP 952 cyan, magenta, yellow ink cartridges (3) | Work with HP Officejet 8702, HP Officejet Pro 7720, 7740, 8210, 8710, 8720, 8730, 8740 Series | Eligible for instant ink | N9k27an

Ensure your printing is right the first time and every time with Original HP Ink, which provides precision output so you can take pride in fade-resistant documents and brilliant images.
Original HP Ink from America’s most trusted brand is engineered to work with HP printers to provide consistent quality, reliability and value
Works with these HP Printers: OfficeJet 8702; OfficeJet Pro 7720, 7740, 8210, 8216, 8710, 8715, 8720, 8725, 8730, 8740
Cartridge yield (approx.): 630 pages per color
Up to 2x more prints with Original HP Ink vs. non-Original HP Ink
82% of HP ink cartridges are manufactured with recycled plastic. Operating temperature range 41 to 95°F

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Code: the hidden language of computer hardware and software

Code: the hidden language of computer hardware and software

The classic guide to how computers work, updated with new chapters and interactive graphics

“For me, Code was a revelation. It was the first book about programming that spoke to me. It started with a story, and it built up, layer by layer, analogy by analogy, until I understood not just the Code, but the System. Code is a book that is as much about Systems Thinking and abstractions as it is about code and programming. Code teaches us how many unseen layers there are between the computer systems that we as users look at every day and the magical silicon rocks that we infused with lightning and taught to think.”

– Scott Hanselman, Partner Program Director, Microsoft, and host of Hanselminutes

Computers are everywhere, most obviously in our laptops and smartphones, but also our cars, televisions, microwave ovens, alarm clocks, robot vacuum cleaners, and other smart appliances. Have you ever wondered what goes on inside these devices to make our lives easier but occasionally more infuriating?

For more than 20 years, readers have delighted in Charles Petzold’s illuminating story of the secret inner life of computers, and now he has revised it for this new age of computing. Cleverly illustrated and easy to understand, this is the book that cracks the mystery. You’ll discover what flashlights, black cats, seesaws, and the ride of Paul Revere can teach you about computing, and how human ingenuity and our compulsion to communicate have shaped every electronic device we use.

This new expanded edition explores more deeply the bit-by-bit and gate-by-gate construction of the heart of every smart device, the central processing unit that combines the simplest of basic operations to perform the most complex of feats. Petzold’s companion website, CodeHiddenLanguage.com, uses animated graphics of key circuits in the book to make computers even easier to comprehend.

In addition to substantially revised and updated content, new chapters include:

Chapter 18: Let’s Build a Clock!Chapter 21: The Arithmetic Logic UnitChapter 22: Registers and BussesChapter 23: CPU Control SignalsChapter 24: Jumps, Loops, and CallsChapter 28: The World Brain

From the simple ticking of clocks to the worldwide hum of the internet, Code reveals the essence of the digital revolution.


From the Publisher

Image of an encoder circuitImage of an encoder circuit

The classic guide to how computers work

This new expanded edition explores more deeply the bit-by-bit, gate-by-gate construction of the heart of every smart device—the central processing unit that combines the simplest of basic operations to perform the most complex of feats. Petzold’s companion website uses animated graphics of key circuits in the book to make computers even easier to comprehend.

In addition to substantially revised and updated content, new chapters include:

Chapter 18: Let’s Build a Clock!Chapter 21: The Arithmetic Logic UnitChapter 22: Registers and BussesChapter 23: CPU Control SignalsChapter 24: Jumps, Loops, and CallsChapter 28: The World Brain

Code, 2nd Edition, by Charles PetzoldCode, 2nd Edition, by Charles Petzold

“…the first book about programming that spoke to me.”

For me, Code was a revelation. It was the first book about programming that spoke to me. It started with a story, and it built up, layer by layer, analogy by analogy, until I understood not just the Code, but the System. Code is a book that is as much about Systems Thinking and abstractions as it is about code and programming.

Code teaches us how many unseen layers there are between the computer systems that we as users look at every day and the magical silicon rocks that we infused with lightning and taught to think.

Scott Hanselman, Partner Program Director, Microsoft, and host of Hanselminutes

Preface to the Second Edition

The first edition of this book was published in September 1999. With much delight I realized that I had finally written a book that would never need revising! This was in stark contrast to my first book, which was about programming applications for Microsoft Windows. That one had already gone through five editions in just ten years. My second book on the OS/2 Presentation Manager (the what?) became obsolete much more quickly. But Code, I was certain, would last forever.

My original idea with Code was to start with very simple concepts but slowly build to a very deep understanding of the workings of digital computers. Through this steady progression up the hill of knowledge, I would employ a minimum of metaphors, analogies, and silly illustrations, and instead use the language and symbols of the actual engineers who design and build computers. I also had a very clever trick up my sleeve: I would use ancient technologies to demonstrate universal principles under the assumption that these ancient technologies were already quite old and would never get older. It was as if I were writing a book about the internal combustion engine but based on the Ford Model T.

I still think that my approach was sound, but I was wrong in some of the details. As the years went by, the book started to show its age. Some of the cultural references became stale. Phones and fingers supplemented keyboards and mice. The internet certainly existed in 1999, but it was nothing like what it eventually became. Unicode—the text encoding that allows a uniform representation of all the world’s languages as well as emojis—got less than a page in the first edition. And JavaScript, the programming language that has become pervasive on the web, wasn’t mentioned at all.

Those problems would probably have been easy to fix, but there existed another aspect of the first edition that continued to bother me. I wanted to show the workings of an actual CPU—the central processing unit that forms the brain, heart, and soul of a computer—but the first edition didn’t quite make it. I felt that I had gotten close to this crucial breakthrough but then I had given up. Readers didn’t seem to complain, but to me it was a glaring flaw.

That deficiency has been corrected in this second edition. That’s why it’s some 70 pages longer. Yes, it’s a longer journey, but if you come along with me through the pages of this second edition, we shall dive much deeper into the internals of the CPU. Whether this will be a more pleasurable experience for you or not, I do not know. If you feel like you’re going to drown, please come up for air. But if you make it through Chapter 24, you should feel quite proud, and you’ll be pleased to know that the remainder of the book is a breeze.

Charles Petzold

Publisher ‏ : ‎ Microsoft Press; 2nd edition (August 7, 2022)
Language ‏ : ‎ English
Paperback ‏ : ‎ 480 pages
ISBN-10 ‏ : ‎ 0137909101
ISBN-13 ‏ : ‎ 978-0137909100
Item Weight ‏ : ‎ 1.45 pounds
Dimensions ‏ : ‎ 6 x 1 x 9 inches

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Stylus pen for iPad 2018-2023, fast charge of 15 minutes for the Apple pencil for iPad 10th / 9th Generation & pro Series 11 / 12.9 inch and air series 5th / 4th / 3th Gen with palm rejection

Stylus pen for iPad 2018-2023, fast charge of 15 minutes for the Apple pencil for iPad 10th / 9th Generation & pro Series 11 / 12.9 inch and air series 5th / 4th / 3th Gen with palm rejection

Product Description

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stylus pen for stylus for touch screens stylist pens for touch screens pencil 2nd gen stylus pen for stylus for touch screens stylist pens for touch screens pencil 2nd gen

Compatible Stylus Pencil for ipad supports palm rejection function, so you can rest your hand on the screen without causing unwanted strokes. No need to wear gloves while drawing, taking notes. Don’t be bothered by accidental touches anymore.

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Compatible with Stylus Pencil builts in 130mAh rechargeable battery, which can be quickly fully charged in about 15 minutes.

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stylus pen for stylus for touch screens stylist pens for touch screens pencil 2nd genstylus pen for stylus for touch screens stylist pens for touch screens pencil 2nd gen

stylus pen for stylus for touch screens stylist pens for touch screens pencil 2nd gen stylus pen for stylus for touch screens stylist pens for touch screens pencil 2nd gen

1 x Stylus Pen, 5 x Replaceable Pencil Tip, 1 x Magnetic Charging Cable, 1 x Instruction Manual, 1 x Dust plug, 1 x Black pen bag

【Compatible for Apple Pen Models】Please confirm whether your devices are compatible for iPads pencil before you place orders. compatible for iPad pen Models:ONLY Compatible iPad (2018 to 2022), including for iPad (10th/9th/8th/7th/6th gen Generation) & (Pro Series 11 Inch 1st/2nd/3rd/4th Gen and Pro 12.9 Inch 3rd/4th/5th/6th Gen) & (Air Series 3rd/4th/5th) & (Mini Series 6th/5th Gen).【Not Compatible with Phone & Android & Microsoft devices】
【Stylus Pencil Low Power Mode】 No need for Bluetooth connection, turn on this stylus pen by simply touching the cap button.Compatible for Apple Pencil charges quickly in 15 minutes, can support the work of 8-10 hours.【Note】IPad stylus auto-off after 5 minutes of inactivity for saving energy efficiently.
【 Stylus Pen for iPads High Precision 】The ultra-fine 1.5 mm tip makes this pen Compatible for iPads as precise as a real pen, which can allow more precise and fluid use even with small, narrow strokes. Compatible for iPad pencil No lagging, no skips, no scratches.
【 Palm Rejection Design 】Upgraded Compatible for iPads pen is slim and lightweight, palm rejection rests your hand comfortably on the screen while writing or drawing. Get rid of the uncomfortable stylus glove. The best pencil for iPad drawing, sketching, and note-taking
【Magnetic Adsorption】Designed With magnetic adsorption function, you can snap it to your ipads if you don’t need to use the Stylus Pen. (Compatible for iPad models which have magnetic function) side face, no more rolling and lost, more portable and easier to organize.The high -level shell greatly improves the toughness of the pen holder. It is durable and difficult to break.【Note】Not all the pen holders of keyboards case can Compatible for Apple Pencil.
【Package Included】1 x Compatible for Apple pencil, 5 x Replaceable Pencil Tip, 1 x Charging Cable, 1 x Instruction Manual, 1 x Dust plug, 1 x Black pen bag. Note: Your devices must be on iOS 12.2 or above and TURN OFF the “Only Draw with Apple Pencil” on tablets before using it.

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Apple iPhone 11, 128 GB, purple for T-Mobile (renewed)

Apple iPhone 11, 128 GB, purple for T-Mobile (renewed)

Just the right amount of everything. A new dual‑lens rear system captures more of what you see and love. The fastest chip ever in a smartphone and all‑day battery life let you do more and charge less. And the highest‑quality video in a smartphone, so your memories look better than ever.
This device is locked to Sprint only and not compatible with any other carrier.
Tested for battery health and guaranteed to have a minimum battery capacity of 80%.
Successfully passed a full diagnostic test which ensures like-new functionality and removal of any prior-user personal information.
The device does not come with headphones or a SIM card. It does include a generic (Mfi certified) charger and charging cable.
Inspected and guaranteed to have minimal cosmetic damage, which is not noticeable when the device is held at arm’s length.

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