B, C, and D are the correct answers.
Answer:
You should install a personal firewall, a program that protects your computer from unauthorized access by blocking certain types of communications.
Explanation:
In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. A firewall typically establishes a barrier between a trusted internal network and untrusted external network, such as the Internet.
Answer:
Grace Hopper.
Explanation:
Grace Hopper was a US Naval Rear Admiral and an American computer scientist who was born on the 9th of December, 1906 in New York city, United States of America. She worked on the first commercial computer known as universal automatic computer (UNIVAC), after the second World War II.
In 1953 at the Remington Rand, Grace Hopper invented the first high-level programming language for UNIVAC 1 by using words and expressions.
Additionally, the high-level programming language known as FLOW-MATIC that she invented in 1953 paved the way for the development of common business-oriented language (COBOL).
Hence, Grace Hopper developed the first compiler and conducted work that led to the development of COBOL.
Answer:
.N. Generación & Descripción
1
Primera Generación
El período de primera generación: 1946-1959. Base del tubo de vacío.
2
Segunda Generación
El período de la segunda generación: 1959-1965. Base del Transistor
3
Tercera generación
El período de tercera generación: 1965-1971. Circuito integrado de base.
4
Cuarta Generación
El período de cuarta generación: 1971-1980. Base del Microprocesador VLSI.
5
Quinta Generación
El período de la quinta generación: 1980 en adelante. Base del Microprocesador ULSI.
Explanation:
espero y esto te sirva de algo
The correct answer isn’t really a choice shown. I would choose D because if a work doesn’t have a copyright symbol that doesn’t mean it’s in the public domain. In a real life situation it would be best to ask the creator before you use their work. If they say it’s in the public domain then you’re fine, but even if they say you can use it that doesn’t mean it’s in the public domain, it just means that you have permission to use it.
