Question

6 most difficult computer science riddles.

1.What was the first computer virus in the DOS system?

2.When was the first electronic computer created and what was its name?

3.What does not include, Unix time?

4.Who is the forerunner of virtual reality?

5.Who is credited as the first computer programmer?

6.When was the first e-mail message sent? ​

Answer 1

Answer:

1. The first computer virus for MS-DOS was "Brain" and was released in 1986. It would overwrite the boot sector on the floppy disk and prevent the computer from booting. It was written by two brothers from Pakistan and was originally designed as a copy protection.
2. The ENIAC was invented by J. Presper Eckert and John Mauchly at the University of Pennsylvania and began construction in 1943 and was not completed until 1946.
3. Unix time (also known as Epoch time, POSIX time,[1] seconds since the Epoch,[2] or UNIX Epoch time[3]) is a system for describing a point in time. It is the number of seconds that have elapsed since the Unix epoch, minus leap seconds; the Unix epoch is 00:00:00 UTC on 1 January 1970 (an arbitrary date); leap seconds are ignored,[4] with a leap second having the same Unix time as the second before it, and every day is treated as if it contains exactly 86400 seconds.[2] Due to this treatment Unix time is not a true representation of UTC.
4. Virtual reality technology was invented in 1957 by Morton Heilig. His multimedia device called the Sensorama is considered one of the earliest VR systems. However, the term 'virtual reality' was coined much later in 1987 by researcher Jaron Lanier.
5. As a result, she is often regarded as the first computer programmer. Ada Byron was the only child of poet Lord Byron and Lady Byron.
6. ...
7. Ada Lovelace.
8. The Right Honourable The Countess of Lovelace
9. Daguerreotype by Antoine Claudet ( c. 1843)
10. Born The Hon. Augusta Ada Byron10 December 1815 London, England
11. We have Ray Tomlinson to thank for initiating the incredible new era of communication that we now enjoy – he sent the First email in 1971.

Explanation:

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