SMS Technical information
There's no need to include here tons and tons of technical info about the SMS, since there are other better sources and nobody would ever read it, so here you have the little technical info that could be found on the back of the original SMS box, the stunning and ununderstandable info that made us buy an SMS...(was the info, or was it Out Run, or Alex Kidd, or Wonder Boy, or....) :)
 
Bonus: Additional text found on the back of the SMS 1 box
Why Sega is the Master over every other System
Never has so much power, so much memory, been packed into a home videogame system.

Graphics and sound that grab you
You'll see sharp edges, vibrant colors and clever animation. Add synthesized music and sound effects and you've got an on-screen showcase.

Game play that challenges you like never before.
Choose from fast action thrillers, high-speed races, sharpshooting contests, strategic challenges and a lot more.
SEGA knows what it takes to make a great game. Because SEGA has been creating the world's most popular arcade games for over 20 years.
If you've heard of the arcade hits, ZAXXON, FROGGER, or HANG ON, you've heard of SEGA.
And now, SEGA brings their world-renowned technology into your home with an interactive video game system.

Only Sega gives you cards and cartridges.
That means with just one system, you can access two types of software.
No other system gives you that choice.
The Sega Card is a software innovation you won't find anywhere else. It's so small, you can carry a couple in your pocket.
Yet each card packs a huge, high-tech memory for graphics and game play that just won't quit.
The Combo Cartdridge memory is 16 times larger than ordinary video games. It gives you innovative color, 3-D animation, and complex game play.

Controllers that actually make a difference!
SEGA's high speed Control Pads put the action in the palm of your hand. Responsive controls let you make all the right moves in an instant.
And when hitting a target is the name of the game, use the hand-held controller: the Sega Light Phaser. Light sensitive and fire ready. Just waiting for you to take aim.

 
And now...the specifications!
The Master System comes with:
State-of-the-art power base console.
Two high speed Control Pads.
The Sega Light Phaser.
AC Adaptor.
Auto RF switch box and cable.

75/300 ohm matching transformer.
300/75 ohm F-type converter

Specifications:
ROM: 128K BITS
RAM: 64K BITS
VIDEO RAM: 128K BITS
COLORS: 64
RESOLUTION: 256 x 192 DOTS
SCREEN SCROLL: HORIZONTALLY, VERTICALLY, DIAGONAL, PARTIAL
AUDIO: 3 SOUND GENERATORS, EACH 4 OCTAVES, 1 WHITE NOISE
CHARACTERS: 8 x 8 PIXELS, MAX 448
SPRITES: 8 x 8 PIXELS, MAX 256

Now, there are no limits