DRAM Magnetic Core Memory SRAM Williams-Kilburn Tubes 
Answer: Williams-Kilburn Tubes
A distant cousin to our modern DDR RAM modules, Williams-Kilburn Tubes were the first random-access memory device. Invented in 1946 by Freddie Williams and Tom Kilburn, the memory units were a microcosmic example of computers of the age. They were bulky, terribly sensitive to environmental conditions, had to be hand-tuned, and were housed inside vacuum-sealed cathode ray tube.
The tubes wrote binary data by projecting it onto the front of the tube just like a television CRT tube projects an image, only in the case of the Williams-Kilburn tubes they were creating negative and positive charges that could be read by a plate positioned over the end of the tube, not an image that would readily recognizable to an observer–some rare tubes did had a phosphor coating which allowed computer operators to see where the tube was writing for diagnostic purposes. Each tube was capable of storing 512-1024 bits of data.
The Williams-Kilburn was used in many early computers, most notably the Manchester Small-Scale Experimental Machine–the first computer with electronically stored programs.
Video sharing sites and the internet in general have been a real boon to documentaries, but a lot of times (especially with YouTube) they’re spread all over the place and poorly labeled and described. I found Top Documentary Films a few months ago and have really enjoyed it… the site catalogs
We’ve previously written about a tool that allows you to create a bunch of folders at one time from a list of words or phrases. However, what if you want to create one or more folders from a bunch of selected text files?
Think you know the answer? Click through to see if you're right!
Many of the case mods we come across are intricate and packed with custom lighting and other geeky flourished. This case made take an opposite approach, combining aluminum and walnut to create a sleek and stunning living-room friendly HTPC case.
How ‘secure’ is your 4-digit PIN number? Is your PIN number a far too common one or is it a bit more unique in comparison to others? The folks over at the Data Genetics blog have put together an interesting analys...
It’s easy to snap away and fill up a memory card, but not quite as easy to share your best pics with your friends and family. How do you get your pics from your camera to your friends’ monitors?
We’ve previously shown you how to backup Firefox profiles using an extension and third-party software and how to backup Google Chrome profiles. If you use Opera, there is a free tool that makes it easy to backup Opera profiles, settings, and even browsing sessions.
Are you tired of looking at the same old biomes in Minecraft? Then add some fresh scenery with the Biomes O’ Plenty mod pack and enjoy a whole new Minecraft world!
Think you know the answer? Click through to see if you're right!
Why settle for zapping ducks on the screen when you could be popping balloons and lighting matches on fire? This awesome (but rather dangerous) hack turns an old Nintendo zapper into a legitimate laser gun.
