Computer Fundamental Miscellaneous - Study Mode

[#1] A light sensitive device that converts drawing, printed text or other images into digital form is
Correct Answer

(C) Scanner

Explanation

Solution: A scanner is a device that captures images from physical sources such as printed text or photographs and converts them into digital form that can be stored, edited, or transmitted electronically. Scanners work by using a light-sensitive sensor to capture the image, which is then converted into digital data that can be manipulated using software. Scanners are commonly used for tasks such as digitizing documents, archiving photographs, and creating digital art. Other options such as keyboard, plotter and OMR are not related to the process of converting physical images into digital form.

[#2] Which protocol provides e-mail facility among different hosts?
Correct Answer

(B) SMTP

Explanation

Solution: 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.

[#3] The basic architecture of computer was developed by
Correct Answer

(A) John Von Neumann

Explanation

Solution: The von Neumann architecture , also known as the von Neumann model , is the foundation of modern computer design. It was proposed by the mathematician and physicist John von Neumann in the 1940s. This architecture is characterized by the use of a central processing unit (CPU) that can execute a series of instructions stored in memory . The instructions are fetched from memory, decoded, and executed sequentially, allowing for the manipulation of data and the execution of various operations. This concept of stored-program computers revolutionized the field of computing and forms the basis for virtually all modern computers today. Option B: Charles Babbage Charles Babbage is known for designing the analytical engine , a mechanical general-purpose computer, in the 1830s. While his work laid the groundwork for computing concepts, his designs were not fully realized during his lifetime. Option C: Blaise Pascal Blaise Pascal, a French mathematician, invented the Pascaline , an early mechanical calculator, in the 17th century. While this device contributed to computational advancements, it did not establish the basic architecture of modern computers. Option D: Garden Moore This option is not associated with the development of the basic architecture of computers. The correct spelling should be "Gordon Moore," who co-founded Intel and is known for formulating "Moore's Law" related to the exponential growth of semiconductor technology. Option E: None of these While options A and B are the most relevant to the development of computer architecture, the correct answer is Option A: John Von Neumann as he proposed the von Neumann architecture that is fundamental to modern computers.

[#4] In order to tell Excel that we are entering a formula in cell, we must begin with an operator such as
Correct Answer

(D) =

Explanation

Solution: In MS Excel, formulas are equations that perform various calculations in your worksheets. Though Microsoft has introduced a handful of new functions over the years, the concept of Excel spreadsheet formulas is the same in all versions of Excel 2016, Excel 2013, Excel 2010, Excel 2007 and lower. All Excel formulas begin with an equal sign (=).

[#5] In how many generations a computer can be classified?
Correct Answer

(C) 5

Explanation

Solution: 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.