The Brother CS6000i Computerized Sewing Machine would be the best sewing machine for a beginner. This machine gets 5 stars on amazon and has had several positive reviews. This sewing machine is very easy to use and the manual is easy to read. It is computerized, automatic, and has a light for the best viewing.
It depends on your budget. There are many brands and models with different features. For more information you can read, ULTIMATE LIST OF 35 BEST BEGINNERS SEWING MACHINES AVAILABLE IN UNITED STATES published by Best Home Ideas (in Related Links).
Juki and Brother make sewing machines that are good.
Brother brand sewing machines are widely considered to be the some of the best made.
Most manufacturers of jeans and canvas using Union Special sewing machines, their reliability and robustness have made them successful, but they are rarely suitable for amateurs and beginners. There may be it for beginners, at affordable prices, don't know!
There are a number of online sites that provide sewing guides for interested individuals. The web domains "Instructables" and "HowToSew," for example, both contain these guides.
"To find lots of information on Toyota's line of sewing machines, you can find them on Toyota Sewing Machines' website. On the site, you can compare both of Toyota's current sewing products, look at pictures submitted by Toyota sewing machine enthusiasts of their finished sewing products, and find local information about Toyota Sewing Machines for your region."
The best description of sewing machine parts and their functions is at http://sewing.about.com/od/sewingmachineindex/ig/Sewing-Machines.--9k/
Sewing machines are very heavy. As such, there is no such thing as a portable sewing machine.
To the best of my knowledge people still use hand sewing machines
No but the sewing machines thread the needle for you will help.
Present day sewing machines are complex electrical machines.
Yes, new sewing machines come with instructions.