IT &computer MCQ section 1 Practice Questions Answers Test with Solutions & More Shortcuts

Answer: (b)

Charles Babbage, was an English mathematician, philosopher, inventor and mechanical engineer who originated the concept of a programmable computer. Considered as “father of the computer”, Babbage is credited with inventing the first mechanical computer that eventually led to more complex designs.

Answer: (a)

The UNIVAC I (Universal Automatic Computer I) was the first commercial computer produced in the United States. It was designed principally by J. Presper Eckert and John Mauchly, the inventors of the ENIAC.

It was the first computer designed for business and administrative use with fast execution of relatively simple arithmetic and data transport operations, as opposed to the complex numerical calculations required of scientific computers.

Answer: (b)

The byte is a unit of digital information in computing and telecommunications that most commonly consists of eight bits. Historically, a byte was the number of bits used to encode a single character of text in a computer.

Answer: (a)

A firewall is a computer appliance or router that sits between the trusted and untrusted systems. It enables a computer to be connected safely to an untrustworthy network.

It is a network security system that monitors and controls the incoming and outgoing network traffic based on predetermined security rules.

Answer: (a)

Microwaves are radio waves, while the rest three are some form of cables.

Coaxial cable: a kind of copper cable used between the community antenna and user homes and businesses;

Optical fiber: a flexible, transparent fibre made of glass or plastic; and

Twisted pair cable: a type of wiring in which two conductors of a single circuit are twisted together for the purposes of cancelling out electromagnetic interference (EMI) from external sources.