Tag: science & technology

In the formula a + rand() % n, the modulo operation ensures the result ranges from 0 to n-1. So n represents the count of possible values. Adding a shifts the range to [a, a+n-1].

Microsoft PowerPoint was originally developed under the name 'Presenter' for Macintosh in 1987. Microsoft acquired it and renamed it PowerPoint before its official release. The name change reflected the software's purpose better.

ICQ is an instant messaging program that got its name from the phonetic pronunciation of 'I Seek You.' The name was chosen because it sounds like 'I seek you,' which relates to the purpose of finding and communicating with people online. The other options are made-up phrases that don't represent the actual meaning.

William Gibson, a science fiction writer, coined the term 'cyberspace' in the early 1980s. His influential novel 'Neuromancer' popularized the concept and is considered a foundational work of the cyberpunk genre. Steve Jobs was associated with Apple computing, while Neil Armstrong was an astronaut.

Jeff Bezos founded Amazon.com in 1994, starting as an online bookstore before expanding into the e-commerce giant we know today. The company's name was inspired by the Amazon River, reflecting its initial goal to be the 'everything store.' eBay, Google, and Yahoo were founded by different entrepreneurs.

IBM introduced the first floppy disk drive in 1971 as a revolutionary method for loading microcode into System/370 mainframes. The 8-inch floppy disk was initially developed for data transfer and storage, offering a more flexible alternative to existing magnetic tape technology. Intel, HP, and Sony were not involved in this invention.

MITS stands for Micro Instrumentation and Telemetry Systems, which was founded in 1969. The company created the Altair 8800, widely considered the first personal computer, which was featured on the cover of Popular Electronics in January 1975. The other options are made-up words not related to the actual acronym.

Microsoft officially stated that XP stands for 'eXPerience,' emphasizing the enhanced user experience and improved interface compared to previous Windows versions. The operating system was released in 2001 and became one of Microsoft's most successful products. The other options are not the official meaning.

Apple's Mac OS X versions used big cat names as code names. v10.0 was Cheetah (the first release), v10.1 was Puma (the first upgrade), and v10.2 was Jaguar (introduced significant new features). This naming convention continued until v10.8 Mountain Lion. The option a-1, b-2, c-3 correctly matches each version with its code name.

1983 is significant because it's when Fred Cohen first demonstrated the concept of computer viruses at a security seminar and coined the term 'virus' for self-replicating programs. The Elk Cloner virus (1982) and Creeper (1971) were earlier but 1983 marks the formal academic definition and documentation of computer viruses.