Month: April 2020

10 Types of Computers | HowStuffWorks

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It’s impossible to imagine life without a computer nowadays. We do our work, entertain ourselves and find out what we need to know via computers. Sometimes we forget that the smartphone is just a palm-sized version of our desktop PC.

While the term computer can apply to virtually any device that has a microprocessor in it, most people think of a computer as a device that receives input from the user through a mouse or keyboard, processes it in some fashion and displays the result on a screen. The hardware and software within computers have evolved at a circuit-snapping pace in the past few decades — the bulky desk-crushing machines from the early ’80s look nothing like the featherweight touchscreen tablets of today.

Compared to those of the late 20th-century, today’s modern computers are also a lot more interconnected thanks to the unrelenting sprawl of the internet and various

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What Is A Computer Virus?

A computer virus, much like a flu virus, is designed to spread from host to host and has the ability to replicate itself. Similarly, in the same way that flu viruses cannot reproduce without a host cell, computer viruses cannot reproduce and spread without programming such as a file or document.

In more technical terms, a computer virus is a type of malicious code or program written to alter the way a computer operates and is designed to spread from one computer to another. A virus operates by inserting or attaching itself to a legitimate program or document that supports macros in order to execute its code. In the process, a virus has the potential to cause unexpected or damaging effects, such as harming the system software by corrupting or destroying data.

How does a computer virus attack?

Once a virus has successfully attached to a program, file, or document,

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What is Computer?

What is Computer : Computer is an electronic device that is designed to work with Information. The term computer is derived from the Latin termcomputare’, this means to calculate or programmable machine. Computer can not do anything without a Program. It represents the decimal numbers through a string of binary digits. The Word ‘Computer’ usually refers to the Center Processor Unit plus Internal memory.

Charles Babbage is called the “Grand Father” of the computer. The First mechanical computer designed by Charles Babbage was called Analytical Engine. It uses read-only memory in the form of punch cards.

Computer is an advanced electronic device that takes raw data as input from the user and processes these data under the control of set of instructions (called program) and gives the result (output) and saves output for the future use. It can process both numerical and non-numerical (arithmetic

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A science and technology timeline

Date Invention or discovery Articles on Explain that stuff Prehistory

4–5 billion years ago

Sun starts to produce energy.

Solar cells
Energy

10 million years ago. Humans make the first tools from stone, wood,
antlers, and bones. Tools and machines

1–2 million years ago

Humans discover fire.

Biofuels
Candles
Car engines
Jet engines

25,000– 50,000 BCE Humans first wear clothes. Biomimetic clothing 10,000 BCE Earliest boats are constructed. Ships and boats 8000– 9000 BCE Beginnings of human settlements and agriculture. Biofuels
Water 6000– 7000 BCE Hand-made bricks first used for construction in the Middle East. Brick (ceramics) Ancient times 4000 BCE Iron used for the first time in decorative ornaments. Iron and steel 3500– 5000 BCE Glass is made by people for the first time. Glass 3500 BCE Humans invent the wheel. Tools and machines
Wheels and axles 3000 BCE First written languages are developed by the Sumerian people of
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Inspector Gadget – TV Show Reviews

  • Season 2 Overview

    Air Date: October 26, 1985

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    S2:E42. M.A.D. Academy

    Air Date: November 8, 1983

  • tbd

    S2:E36. Double Agent

    Air Date: October 31, 1983

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    S2:E35. Parched Nemesis

    Air Date: February 20, 2018

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    S2:E34. The Heir Affhair

    Air Date: February 15, 2018

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    S2:E33. MADthuselah

    Air Date: February 13, 2018

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    S2:E32. The MADstache of Professor Coin

    Air Date: February 8, 2018

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    S2:E32. Under the MADnight Sun

    Air Date: January 25, 2018

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    S2:E32. Clear Case

    Air Date: October 25, 1983

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    S2:E31. Once Upon a Screentime

    Air Date: February 6, 2018

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    S2:E31. Panda-monium

    Air Date: January 23, 2018

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    S2:E30. Fate It Til You Make It

    Air Date: February 1, 2018

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    S2:E30. Star Power

    Air Date: January 18, 2018

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    S2:E30. Japanese Connection

    Air Date: October 21, 1983

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    S2:E29. Too Many Talons

    Air Date: January 16, 2018

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    S2:E28. Anti-Gravity

    Air Date:

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    What is a Computer Network?

    We’ll talk more about how this distinction is made in the evolution of computer networking step-by-step, from the early mainframe computers onward.

    The earliest computers had no networks — they were monoliths that crunched numbers through basic mechanical and electrical components.

    Then, slowly, as the technology evolved, we figured out how to link one physical computer to another.

    Early Computer Networks

    Early simpler computer networks were situations where individual computers and workstations and servers got connected one by one, first by Ethernet and other cabling, and later through wireless connection technologies.

    In the beginning, those machine-to-machine connections were the only kinds of networking that were available. The traditional computer network saw each physical hardware piece as a node in a connected infrastructure.

    In order to affect these kinds of early networks, engineers used a range of physical network topologies. A bus topology connected all of the nodes to a single

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    Personal computer – Wikipedia

    Computer intended for use by an individual person

    An artist’s depiction of a 2000s-era desktop-style personal computer, which includes a metal case with the computing components, a display monitor and a keyboard (mouse not shown).

    A personal computer (PC) is a multi-purpose computer whose size, capabilities, and price make it feasible for individual use.[1] Personal computers are intended to be operated directly by an end user, rather than by a computer expert or technician. Unlike large costly minicomputers and mainframes, time-sharing by many people at the same time is not used with personal computers.

    Institutional or corporate computer owners in the 1960s had to write their own programs to do any useful work with the machines. While personal computer users

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    Why Apple’s iPad Is the Gadget of the Pandemic

    In a flatlining economy, the $399 iPhone that Apple introduced last week might sound attractive. But there’s a better gadget deal in the pandemic: the iPad.

    With a bigger screen than an iPhone, the iPad excels at videoconferencing with apps like FaceTime and Zoom, and it’s great for watching movies and programs on Netflix and YouTube. When you attach it to a good keyboard, it becomes an excellent budget computer with a zippy internet connection for browsing the web, writing emails and composing documents. All for half

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    What is computer? – Definition from WhatIs.com

    A computer is a device that accepts information (in the form of digitalized data) and manipulates it for some result based on a program, software, or sequence of instructions on how the data is to be processed.

    Complex computers include the means for storing data (including the program, which is also a form of data) for some necessary duration. A program may be invariable and built into the computer hardware (and called logic circuitry as it is on microprocessors) or different programs may be provided to the computer (loaded into its storage and then started by an administrator or user). Today’s computers have both kinds of programming.

    Major types of computers

    Analog computer – represents data by measurable quantities
    Desktop computer – a personal computer that fits on a desk and is often used for business or gaming
    Digital computer – operates with numbers expressed as digits
    Hybrid computer –

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    Computer program | Britannica

    Computer program, detailed plan or procedure for solving a problem with a computer; more specifically, an unambiguous, ordered sequence of computational instructions necessary to achieve such a solution. The distinction between computer programs and equipment is often made by referring to the former as software and the latter as hardware.

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    numerical analysis: Computer software

    Software to implement common numerical analysis procedures must be reliable, accurate, and efficient. Moreover, it must be written so as…

    Programs stored in the memory of a computer enable the computer to perform a variety of tasks in sequence or even intermittently. The idea of an internally stored program was introduced in the late 1940s by the Hungarian-born mathematician John von Neumann. The first digital computer designed with internal programming capacity was the EDVAC (acronym for Electronic Discrete Variable Automatic Computer), constructed in 1949.

    A program is prepared by first

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