Top products from r/computing
We found 20 product mentions on r/computing. We ranked the 76 resulting products by number of redditors who mentioned them. Here are the top 20.
1. C2G 02902 Mac DB15 Male to VGA (HD15) Female Adapter, Beige
Sentiment score: 1
Number of reviews: 1
Use your VGA monitor for your MacConnector 1: (1) DB15 MaleConnector 2: (1) HD15 FemaleWarranty: Lifetime
2. Ubiquiti UniFi nanoHD Compact 802.11ac Wave2 MU-MIMO Enterprise Access Point ( UAP-NANOHD-US)
Sentiment score: 1
Number of reviews: 1
Four stream 802.11AC Wave2 technologySupports 200+ concurrent users802.3af PoE compatibilityOptional covers (sold separately) allow the Unifi nanohd AP TO discreetyly blend into its setting
3. ASUS UL30A-A2 Thin and Light 13-3-Inch Silver Laptop - 12 Hours of Battery Life (Windows 7 Home Premium)
Sentiment score: 1
Number of reviews: 1
1.3GHz Intel SU7300 Core 2 Duo Processor4GB of DDR3 RAM, 2 slots, 4GB Max500GB SATA Hard Drive (5400 RPM)13.3" HD LED LCD Display, Intel GMA 4500MHD, 0.3M Webcam, Wi-Fi 802.11 bgnWindows 7 Home Premium Operating System (64 bit), *12 Hours of Battery Life
4. HP Procurve 1810G-8 Switch
Sentiment score: 0
Number of reviews: 1
Provides reliable, plug-and-play Gigabit network connectivityProvides additional network security capabilitiesImproves energy efficiency, and expanded deployment flexibilityConsists of 8- and 24-port 10/100/1000 Web-managed switches
5. Thermaltake BlacX Duet eSATA USB Dual Hard Drives Docking Station ST0014U
Sentiment score: 1
Number of reviews: 1
Read & Write 2 Hard Drives simultaneously (Note: Device's eSATA must support the "port multiplier" function to see both drives, USB will automatically detect)Supports All 2.5" & 3.5" SATA Hard Drives up to 2TB (per slot)Supports eSATA Transfer Speed up to 3.0 Gbps, USB 2.0 Transfer Speed up to 480 M...
6. Energizer XP18000 Universal AC Adapter with External Battery for Laptops, Netbooks, and More
Sentiment score: 1
Number of reviews: 1
Portable, rechargeable battery for netbooks, tablets, and smartphones--just plug into USB port for instant powerThree outputs provide simultaneous charging of three devices at once; also great for gaming devices and MP3 playersProvides up to 5 extra hours of use for laptops, and up to 8 hours for ne...
7. Dvi Splitter Cable - 1 Male to 2 Female
Sentiment score: 0
Number of reviews: 1
DVI SPLITTER CABLE - 1 MALE TO 2 FEMALE
8. Asus K50IJ-C1 15.6 Inch Laptop - Black
Sentiment score: 0
Number of reviews: 1
Intel Core Two Duo T6500 Processor 2.1GHz4GB DDR2 800 RAM, 1 slot, 4GB Max250GB SATA Hard Drive (5400RPM), DVD SuperMulti DriveWindows Vista Home Premium (32-bit) Operating System15.6 inch High Definition Display, 1.3 MP Webcam, Carry Bag and Optical Mouse Included
9. Hakko 472D-01 Digital Desoldering Station with Built-In Vacuum Pump, Pencil Handpiece, 24V AC, 110W
Sentiment score: -1
Number of reviews: 1
Pencil-style desoldering toolDigital temperature displayZero crossover switchingESD-safe by design24 in. Hg Vacuum pressure and 15 L/min suction flow
10. IOGEAR 4-Port MiniView Symphony Multi-function KVM Switch with Cables, GCS1774
Sentiment score: 0
Number of reviews: 1
Controls four computers with a single VGA monitor, USB keyboard and mouse; Four 6 ft (1.8m) cables includedSuperior video quality - up to 2048 x 1536Built-in USB 2.0 peripheral sharing with data transfer rates of up to 480 Mbps; Built-in 5 port 10/100 Mbps Ethernet switch Share one set of speakers w...
11. StarTech.com 6in Stereo Audio Y-Cable - 3.5mm Male to 2X RCA Female - Headphone Jack to RCA – Computer / MP3 to Stereo 1x Mini-Jack 2X RCA (MUMFRCA)
Sentiment score: 1
Number of reviews: 1
3.5mm Male to 2x RCA FemaleAudio cableRCA x 2 (F) to stereo mini jack (M)6 inblackfor P/N: SV411KUSBCompatible devices: PCConnector type: Coaxial
12. Network+ Certification All-in-One Exam Guide, Third Edition (All-in-One)
Sentiment score: 1
Number of reviews: 1
13. Introduction to the Theory of Computation
Sentiment score: 1
Number of reviews: 1
Used Book in Good Condition
14. CompTIA A+ Complete Certification Kit: Exams 220-901 and 220-902
Sentiment score: 1
Number of reviews: 1
16. A Million Random Digits with 100,000 Normal Deviates
Sentiment score: 0
Number of reviews: 1
Used Book in Good Condition
17. Code: The Hidden Language of Computer Hardware and Software
Sentiment score: 0
Number of reviews: 1
Microsoft Press
18. iOS Programming: The Big Nerd Ranch Guide (2nd Edition) (Big Nerd Ranch Guides)
Sentiment score: 1
Number of reviews: 1
techexams.net has a pretty good community with a lot of great resources. I would start by going through their free stuff.
With that said, the Mike Meyers Network Plus guide is awesome. My wife used this guide as her sole study source and passed with a 884/900 with zero previous networking experience.
Yes as you said below, you really don't want a "mesh" network. That means something totally different.
You just want PoE access points that can do hand-of, which UniFI can do for sure. I use UniFI at my house and it's 100% worth it. Either of these will work:
https://www.amazon.com/Ubiquiti-Compact-802-11ac-Enterprise-UAP-NanoHD-US/dp/B07DWW3P6K/
https://www.amazon.com/Ubiquiti-Networks-UAP-AC-PRO-Access-Included/dp/B079DSW6XX/
but the first one (the NanoHD) is newer and supports 802.11ac wave2.
With unifi you really should go all-in with unifi equipment. That's when the system works best. I'd recommend this PoE switch:
https://www.amazon.com/Ubiquiti-Networks-Managed-Gigabit-US-8-150W/dp/B01DKXT4CI/
You get 8 ports of PoE ethernet and two SFP ports. You can turn the SFP ports into two more RJ45 gigabit ethernet ports (without PoE) with these:
https://www.amazon.com/gp/product/B01JUBXDPI/
Alternatively, if you need many more ports or want something rack-moutable, I'd use this switch:
https://www.amazon.com/Ubiquiti-Networks-US-16-150W-UniFi-Switch/dp/B01E46ATQ0/
You'll also need a computer that's always on somewhere in your house to run the UniFI controller software. The controller is how you configure and track everything. It's really light-weight, so it can just run in the background on a desktop or some old Mac or PC.
Alternatively you can just plug a "UniFI Cloud Key" controller into one of your PoE ports:
https://www.amazon.com/Ubiquiti-Secure-Controller-stand-Alone-Hardware/dp/B07BB4RGQD/
One caveat, if you use the cloud key make sure you back up your unifi database (on the controller) often. I've had them fail on me more than I like.
Finally, if you don't like any of those you can use a hosted instance of the cloud controller but it's $199 a year:
https://community.ubnt.com/t5/UniFi-Wireless/Announcing-UniFi-s-newest-Cloud-management-offering/td-p/1912538
Unfortunately, what you're suggesting (DC storage to AC intermediate "wall socket" power to DC use by the device) is a bit impractical and inefficient. Many power inverters (a device for turning DC current into AC), can have efficiencies down to 50% when you use them in a trickle mode to "top off" a battery and near 90% when you use the full rated capacity of the inverter. As well, most digital electronics use DC power internally, this AC power you just generated will have to be converted back into DC power. This process will also loss some of the energy as heat as well.
Taken together, this means that you will probably need about two to three times the amount of battery (with associated weight) to run your "universal charger".
What I would suggest would be to have a DC power source you can tie directly into your portable device without having to convert between AC and DC twice.
First: Many small portable devices will charge off of USB. USB is already DC and they make dozens of battery packs (some rechargeable) that will supply power to anything that can draw current from a USB cable. http://www.google.com/search?q=usb+battery+pack
Secondly, if you need to supply power to a portable device which cannot charge off of USB (such as a laptop), your best solution would be to buy a specific external battery/spare battery for your laptop, that you can recharge from or swap to. Most modern OSes can save their current state to the harddrive (e.g.: hibernation mode), so you can power down, swap batteries and power up in seconds.
Edit: Would something like this be what you're looking for: http://www.amazon.com/Energizer-XP18000-Universal-External-Netbooks/dp/B002K8M9HC
Sipser's Introduction to the Theory of Computation is the standard textbook. The book is fairly small and quite well written, though it can be pretty dense at times. (Sipser is Dean of Science at MIT.)
You may need an introduction to discrete math before you get started. In my udergrad, I used Rosen's Discrete Mathematics and Its Applications. That book is very comprehensive, but that also means it's quite big.
Rosen is a great reference, while Sipser is more focused.
Step 1: Familiarize yourself with C++ (yes C++, not C) from cplusplus.com. This step is free.
Step 2: Learn how to use Objective-C for iOS programming from this amazing book.
That should be all you need.
thank you. yeah i've basically figured I can just format my 2 3tb drives in exFAT, and then use something like this as a means of connecting my hdd to my friend's mac mini.
Continuing this Asus circle-jerk, I bought a laptop early this September. I researched my choice carefully and must say that I am very happy I chose Asus.
Comptia A+ one of the best basic entry level certifications/books/trainings.
Oh man, get it from Amazon: You Save: $1,605.47 (99%)
The short answer is "because it doesn't increase performance".
The long answer involves the Von Neumann bottleneck, memory wall, power wall and ILP wall. For the long story I refer to the relevant chapter in Computer architecture: a quantitative approach
Adding more cores like we've been doing with multi-cores is a stop-gap measure, allowing manufacturers to keep claiming increased performance.
CCNA is worth getting, but whether it's worth the university cost is up to you.
I bought this book and will be doing it on my own. It comes with online videos, practice tests and labs.
http://www.amazon.com/gp/product/0956989292
If you can get another book, I would recommend this one; it is basically written to be the other book's only prerequisite, so it will take you through the language without assuming that you already know anything at all. As far as Internet tutorials, the first thing I found in a quick search that makes similarly few assumptions is this. There may be others, I'll try to look more later.
Keep in mind also that, if you want to write iOS applications, you're going to need either a Mac or some kind of hackintosh, because the tools you will need run only on Mac OS.
Based on what I read about your laptop on this link: http://www.amazon.com/Asus-K50IJ-C1-15-6-Inch-Laptop/dp/B002FU6BAQ , not sure if that is your exact model or not but have you/would you consider upgrading from Windows Vista to Windows 7. There were a ton of complaints against Vista and that may solve some issues or at the very least not bloat your computer.
There also may be an issue with your web browser, ie: chrome, firefox, internet explorer and/or some related software/plug ins?
People may be able to help more if you give more details regarding your setup and which specific model of the k50ij you have.
Would the item below work?
http://www.amazon.com/Dvi-Splitter-Cable-Male-Female/dp/B002GU2XUM
How about this book?
http://www.amazon.com/Million-Random-Digits-Normal-Deviates/dp/0833030477/ref=sr_1_1?ie=UTF8&qid=1289494923&sr=8-1
As others have noted, your question needs to be fleshed out but this book will answer your question regardless:
http://amzn.com/0735611319
Should have run CAT 6e or even 6a to be future-proof. Cat 5 might or might not handle GBit/s.
You should have the devices connect to a central (GBit/s, no point in 100 MBit/s) somewhere, e.g. in your basement. There are fanless switches, in case noise is a problem. How many ports do you need? If it's 16 ports, I'd go for a http://www.amazon.com/HP-Procurve-1410-16G-Switch-J9560A/dp/B003QR1DBO/ -- if you need 8 ports, go with the http://www.amazon.com/HP-J9449A-ABA-Procurve-1810G-8/dp/B002NJUJ6G/ which is managed (you might not yet know what that is, but at some point you might want separate your networks into virtual segments, at which point you'll need VLAN capability).