Sini may refer to:

Captain America is a fictional character, a superhero who appears in comic books published by Marvel Comics. The character first appeared in Captain America Comics #1 (cover-dated March 1941), from Marvel Comics' 1940s predecessor, Timely Comics, and was created by Joe Simon and Jack Kirby. As of 2007, an estimated 210 million copies of "Captain America" comic books had been sold in 75 countries. For nearly all of the character's publication history, Captain America was the alter ego of Steve Rogers, a frail young man who was enhanced to the peak of human perfection by an experimental serum in order to aid the United States war effort. Captain America wears a costume that bears an American flag motif, and is armed with an indestructible shield that can be thrown as a weapon.

An intentionally patriotic creation who was often depicted fighting the Axis powers of World War II, Captain America was Timely Comics' most popular character during the wartime period. After the war ended, the character's popularity waned and he disappeared by the 1950s aside from an ill-fated revival in 1953. Captain America was reintroduced during the Silver Age of comics when he was revived from suspended animation by the superhero team the Avengers in The Avengers #4 (March 1964). Since then, Captain America has often led the team, as well as starring in his own series.

John McAfee (born September 18, 1945) is a computer programmer and founder of McAfee. He was one of the first people to design anti-virus software and to develop a virus scanner. He was born in England and raised in Salem, Virginia. He received his bachelor's degree in mathematics from Roanoke College in 1967, and he received an honorary doctorate from Roanoke College in 2008.

John was employed as a programmer by NASA's Institute for Space Studies in New York City from 1968 to 1970. From there he went to Univac as a software designer and later to Xerox as an Operating System architect. In 1978 he joined Computer Sciences Corporation as a software consultant. Later, while employed by Lockheed in the 1980s, McAfee received a copy of the Pakistani Brain computer virus and began developing software to combat viruses. He was the first to distribute anti-virus software using the shareware business model. In 1989, he quit Lockheed and began working full time at his anti-virus company McAfee Associates, which he initially operated from his home in Santa Clara, California.