FOC Quiz

A light-sensitive device that converts drawing, printed text or other images into digital form is

• Keyboard

• Plotter

• Scanner

• OMR

Answer explanation

A light-sensitive device that converts drawings, printed text or other images into digital form is Scanner. An image scanner often abbreviated as just a scanner is a device that optically scans images, printed text, handwriting or an object and converts it to a digital image.

Which protocol provides e-mail facility among different hosts?

• FTP

• SMTP

• TELNET

• SNMP

Answer explanation

SMTP (Simple Mail Transfer Protocol) is a TCP/IP protocol used in sending and receiving e-mail. However, since it is limited in its ability to queue messages at the receiving end, it is usually used with one of two other protocols, POP3 or IMAP that let the user save messages in a server mailbox and download them periodically from the server. SMTP usually is implemented to operate over Internet port 25.Many mail servers now support Extended Simple Mail Transfer Protocol (ESMTP), which allows multimedia files to be delivered as e-mail.

The basic architecture of computer was developed by

• John Von Neumann

• Charles Babbage   

• Blaise Pascal

• Garden Moore

Answer explanation

In 1945, Professor J. von Neumann, who was then working at the Moore School of Engineering in Philadelphia, where the E.N.I.A.C. had been built, issued on behalf of a group of his co-workers, a report on the logical design of digital computers.

In how many generations a computer can be classified?

• 3

• 4

• 5

• 6

Answer explanation

There is 5 generation of computer available till now.1^st Generation of Computer = The period of first generation: 1946-1959. Vacuum tube based.2^nd Generation of Computer = The period of second generation: 1959-1965. Transistor based.3^rd Generation of Computer = The period of third generation: 1965-1971. Integrated Circuit based.4^th Generation of Computer = The period of fourth generation: 1971-1980. VLSI microprocessor based.5^th Generation of Computer = The period of fifth generation: 1980-onwards. ULSI microprocessor based.

Fifth-generation computers are based on

• Artificial Intelligence

• Programming Intelligence

• System Knowledge

• VVLSI

Answer explanation

Fifth generation computing devices, based on artificial intelligence, are still in development, though there are some applications, such as voice recognition, that are being used today. The use of parallel processing and superconductors is helping to make artificial intelligence a reality. Quantum computation and molecular and nanotechnology will radically change the face of computers in years to come. The goal of fifth-generation computing is to develop devices that respond to natural language input and are capable of learning and self-organization.

The first generation of computers was based on which technology?

• Transistor

• LSI

• VSLI

• Vacuum Tube

Answer explanation

The first computers used vacuum tubes for circuitry and magnetic drums for memory, and were often enormous, taking up entire rooms. They were very expensive to operate and in addition to using a great deal of electricity, generated a lot of heat, which was often the cause of malfunctions.First generation computers relied on machine language, the lowest-level programming language understood by computers, to perform operations, and they could only solve one problem at a time. Input was based on punched cards and paper tape, and output was displayed on printouts.The UNIVAC and ENIAC computers are examples of first-generation computing devices.

The microprocessor was introduced in which generation of computer

• Second Generation

• Fourth Generation

• Both (A) and (B)

• Third Generation

Answer explanation

The microprocessor brought the fourth generation of computers, as thousands of integrated circuits were built onto a single silicon chip. What in the first generation filled an entire room could now fit in the palm of the hand. The Intel 4004 chip, developed in 1971, located all the components of the computer—from the Central processing Unit (CPU) and memory to input/output controls—on a single chip.Tthese small computers became more powerful, they could be linked together to form networks, which eventually led to the development of the Internet. Fourth generation computers also saw the development of GUIs, the mouse and handheld devices.

Which of the following memory is non-volatile?

• SRAM

• DRAM

• ROM

• ALL OF THE OPTIONS

Answer explanation

Rom is non-volatile memory include read-only memory, flash memory, ferroelectric, most types of magnetic computer storage devices .This is because you cannot erase or modify it when the computer system is turned off. Computer manufacturers write codes on the ROM chip, and users cannot alter or interfere with it.

GUI stands for

• Graph Use Interface

• Graphical Universal Interface

• Graphical User Interface

• Graphical Unique Interface

Answer explanation

A Graphical User Interface is a computer interface that allows users to interact with a device through graphical elements such as pictures and animations, as opposed to text-based commands.

Any data or instruction entered into the memory of a computer is considered as

• Storage

• Output

• Input

• Information

Answer explanation

Rom is non-volatile memory include read-only memory, flash memory, ferroelectric, most types of magnetic computer storage devices. This is because you cannot erase or modify it when the computer system is turned off. Computer manufacturers write codes on the ROM chip, and users cannot alter or interfere with it.