Quiz: Top 100 Computer MCQ's

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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 . Many mail servers now support (ESMTP), which allows multimedia files to be delivered as e-mail.

Explanation: An error in computer program is known as and process of fixing Bugs are known as

Explanation: Internet Explorer (formerly Microsoft Internet Explorer and Windows Internet Explorer, commonly abbreviated IE or MSIE) is a series of graphical web browsers developed by Microsoft and included in the Microsoft Windows line of operating systems, starting in 1995.

Explanation: BIOS (Basic Input Output System) software is stored on a non-volatile ROM chip on the motherboard. In modern computer systems, the BIOS contents are stored on a flash memory chip so that the contents can be rewritten without removing the chip from the motherboard.

Explanation: A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.

Explanation: A process which copy's data from a memory location of the computer system is termed as Reading. It is an action executed by the computer system. This process helps to acquire data from a source field and then place the data into their volatile memory for further processing.

Explanation: Audio Video Interleave (also Audio Video Interleaved), known by its initials AVI, is a multimedia container format introduced by Microsoft in November 1992 as part of its Video for Windows software. AVI files can contain both audio and video data in a file container that allows synchronous audio-with-video playback

Explanation: A printer is a device that accepts text and graphic output from a computer and transfers the information to paper, usually to standard-size, 8.5" by 11" sheets of paper. Printers vary in size, speed, sophistication and cost.

Explanation: A modem (modulator

Explanation: Dynamic random-access memory (DRAM) is a type of random access semiconductor memory that stores each bit of data in a separate tiny capacitor within an integrated circuit.

Explanation: In computing, a printer is a peripheral device which makes a persistent human-readable representation of graphics or text on paper.

Explanation: USB, short for Universal Serial Bus, is a standard type of connection for many different kinds of devices. Generally, USB refers to the types of cables and connectors used to connect these many types of external devices to computers.

Explanation: The domain name system (DNS) is the way that internet domain names are located and translated into internet protocol (IP) addresses. The domain name system maps the name people use to locate a website to the IP address that a computer uses to locate a website. For example, if someone types example.com into a web browser, a server behind the scenes will map that name to the IP address 93.184.216.34

Explanation: An arithmetic logic unit (ALU) is a combinational digital electronic circuit that performs arithmetic and bitwise operations on integer binary numbers. This is in contrast to a floating-point unit (FPU), which operates on floating point numbers. An ALU is a fundamental building block of many types of computing circuits, including the central processing unit (CPU) of computers, FPUs, and graphics processing units (GPUs). A single CPU, FPU or GPU may contain multiple ALUs.

Explanation: An arithmetic logic unit (ALU) is a digital circuit used to perform arithmetic and logic operations. It represents the fundamental building block of the central processing unit (CPU) of a computer. Modern CPUs contain very powerful and complex ALUs.

Explanation: A supercomputer is a computer with a high level of performance compared to a general-purpose computer. Performance of a supercomputer is measured in floating-point operations per second (FLOPS) instead of million instructions per second (MIPS). Traditionally, supercomputers have been used for scientific and engineering applications that must handle very large databases or do a great amount of computation (or both).

Explanation: The most common technique to change an analog signal to digital data is called pulse code modulation (PCM). A technique used by codes to convert an analog signal into a digital bit stream is known as Pulse code modulation.

Explanation: Microsoft currently uses Intel-based processors for the majority of its Azure cloud services, and most of the company's Surface lineup run on Intel chips, too. We reached out to Microsoft to comment on the rumors, and the company didn't deny them.

Explanation: The Motherboard is the main circuit board for the computer, containing both soldered, non-removable components along with sockets or slots for components that can be removed. The motherboard holds the CPU, RAM and ROM chips, etc.

Explanation: When any data or instruction is entered into the memory of a computer, it is considered as input. Input refers to the process of providing data or instructions to a computer for processing. This can be done through various input devices such as keyboards, mice, scanners, etc. Input is an essential step in the computer's functioning as it allows the computer to receive and process information. Therefore, in the context of the given question, the data or instruction entered into the computer's memory is considered as input.

Explanation: PCI (peripheral component interconnect) is an interface standard for connecting high-speed components. Every desktop PC motherboard has a number of PCI slots you can use to add GPUs, RAID cards, Wi-Fi cards or SSD (solid-state drive) add-on cards.

Explanation: In computer hardware, a port serves as an interface between the computer and other computers or peripheral devices. In computer terms, a port generally refers to the female part of connection. Computer ports have many uses, to connect a monitor, webcam, speakers, or other peripheral devices.

Explanation: EEPROM (also EPROM) stands for Electrically Erasable Programmable Read-Only Memory and is a type of non-volatile memory used in computers.

Explanation: A computer virus is a malicious software program loaded onto a user

Explanation: A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.

Explanation: A logic gate is an elementary building block of a digital circuit. Most logic gates have two inputs and one output. At any given moment, every terminal is in one of the two binary conditions low (0) or high (1), represented by different voltage levels.

Explanation: Memory is the conscious storage and recollection of data. Under declarative memory resides semantic and episodic memory. Semantic memory refers to memory that is encoded with specific meaning, while episodic memory refers to information that is encoded along a spatial and temporal plane.

Explanation: The computer does its primary work in a part of the machine we cannot see, a control center that converts data input to information output. This control center, called the central processing unit (CPU), is a highly complex, extensive set of electronic circuitry that executes stored program instructions.

Explanation: An arithmetic logic unit (ALU) is a combinational digital electronic circuit that performs arithmetic and bitwise operations on integer binary numbers.

Explanation: 1 KB = 1024 bytes.

Explanation: A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage and one or more rigid rapidly rotating platters coated with magnetic material. The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored and retrieved in any order. HDDs are a type of non-volatile storage, retaining stored data even when computer powered off.

Explanation: Fifth generation computing devices, based on , 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.

Explanation: E-commerce is the activity of buying or selling of products on online services or over the Internet. Electronic commerce draws on technologies such as mobile commerce, electronic funds transfer, supply chain management, Internet marketing, online transaction processing, electronic data interchange (EDI), inventory management systems, and automated data collection systems.

Explanation: An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material, normally .

Explanation: A 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. 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 are not related to the process of converting physical images into digital form.

Explanation: In mathematics and digital electronics, a binary number is a number expressed in the base-2 numeral system or binary numeral system, which uses only two symbols: typically 0 (zero) and 1 (one). The base-2 numeral system is a positional notation with a radix of 2. Each digit is referred to as a bit.

Explanation: The client-server programming model is a distributed computing architecture that segregates information users (clients) from information providers (servers). A client is an application that needs something like a web page or IP address from a server. Clients may contact a server for this information at any time.

Explanation: In computing, an input device is a piece of computer hardware equipment used to provide data and control signals to an information processing system such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, digital cameras and joysticks.

Explanation: The , also known as the , is the foundation of modern computer design. It was proposed by the mathematician and physicist in the 1940s. This architecture is characterized by the use of a that can execute a series of instructions stored in . 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. Charles Babbage Charles Babbage is known for designing the , 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. Blaise Pascal Blaise Pascal, a French mathematician, invented the , 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. 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. None of these While options A and B are the most relevant to the development of computer architecture, the correct answer is as he proposed the von Neumann architecture that is fundamental to modern computers.

Explanation: Intel is not PC manufacturer. Intel in full Intel Corporation, American manufacturer of semiconductor computer circuits. It is headquartered in Santa Clara, California. The company's name comes from

Explanation: A program that converts computer data into some code system other than the normal one is known as encoder. Encoder is used for the same purpose (means to convert information to machine code) and Decoder is just opposite of encoder.

Explanation: A programmable read-only memory (PROM) or field programmable read-only memory (FPROM) or one-time programmable non-volatile memory (OTP NVM) is a form of digital memory where the setting of each bit is locked by a fuse or antifuse. It is one type of ROM (read-only memory). The data in them is permanent and cannot be changed. PROMs are used in digital electronic devices to store permanent data, usually low level programs such as firmware (microcode).

Explanation: 1 MB is equal to 1024 kilobytes. 2 = 1 2 = 2 2 = 4 2 = 8 2 = 16 2 = 32 2 = 64 2 = 128 2 = 256 2 = 512 2 = 1024

Explanation: Mainframe computers are computers used primarily by large organizations for critical applications; bulk data processing, such as census, industry and consumer statistics, enterprise resource planning; and transaction processing. They are larger and have more processing power than some other classes of computers: minicomputers, servers, workstations, and personal computers. Mainframes are built to be reliable for transaction processing as it is commonly understood in the business world: the commercial exchange of goods, services, or money. A typical transaction, as defined by the Transaction Processing Performance Council, updates a database system for inventory control (goods), airline reservations (services), Railway or banking (money) by adding a record.

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.

Explanation: A computer program is a sequence of instructions for performing a task designed to solve specific problems. Each program instruction is designed to be executable by a computer; computers require the capacity to execute programs in order to function.