Secret about Computers

History of Input and Output Devices


Computer is a man made machine and it help us to find so many things and CPU (Central Processing Unit) is brain of computer

John Vincent Atanasoff

    John Vincent Atanasoff (October 4, 1903 – June 15, 1995) was an American physicist and inventor, best known for inventing the first electronic digital computer.Atanasoff invented the first electronic digital computer in the 1930s at Iowa State College

Output devices

An output device is any piece of computer hardware equipment used to communicate the results of data processing carried out by an information processing system (such as a computer) which converts the electronically generated information into human-readable form.

Input Devices

In computing, an input device is a peripheral (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.

Big image


CPU(Central Processing Unit)

CPU is the brain of computer


Random-access memory is a form of computer data storage. A random-access memory device allows dataitems to be accessed (read or written) in almost the same amount of time irrespective of the physical location of data inside the memory.

Power Supply

A power supply is an electronic device that supplies electric energy to an electrical load.

Network Card

A Network interface card, NIC, or Network card is an electronic device that connects a computer to a computer network, usually a LAN. It is considered a piece of computer hardware. Today, most computers are equipped with network cards.
Big image

Graphics Card

The CPU may be the brain of your PC, but when it comes to gaming, the graphics card is the beating heart that pumps pixels out of your obelisk of a tower and into your monitor. A graphics card consists of dedicated video memory and a graphics processing unit that handles all sorts of calculations, like mapping textures and rendering millions of polygons. The graphics card is, simply, the most vital component of your gaming PC. And these are the ones worthy of your next PC, whether it's a savvy middle-of-the-road build, a budget rig or a 4K monster
Big image

Mother board

A motherboard (sometimes alternatively known as the mainboard, system board, baseboard, planar board or logic board,[1] or colloquially, a mobo) is the main printed circuit board (PCB) found in general purpose microcomputers and other expandable systems. It holds and allows communication between many of the crucial electronic components of a system, such as the central processing unit (CPU) and memory, and provides connectors for other peripherals. Unlike a backplane, a motherboard usually contains significant sub-systems such as the central processor, the chipset's input/output and memory controllers, interface connectors, and other components integrated for general purpose use.
Big image

Hard Drive

A hard disk drive (HDD), hard disk, hard drive or fixed disk[b] is a data storage device used for storing and retrieving digital information using one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material. The platters are paired with magnetic heads arranged on a moving actuator arm, which read and write data to the platter surfaces.[2] Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. HDDs are a type of non-volatile memory, retaining stored data even when powered off
Big image

Binary Code

A binary code represents text or computer processor instructions using the binarynumber system's two binary digits, 0 and 1. The binary code assigns a bit string to each symbol or instruction
Big image

A Video


Alan Turing

Alan Mathison Turing OBE FRS was a pioneering English computer scientist, mathematician, logician, cryptanalyst and theoretical biologist.Wikipedia

Born: June 23, 1912, Maida Vale, London, United Kingdom

Died: June 7, 1954, Wilmslow, United Kingdom

Education: Princeton University (1936–1938), more

Siblings: John Turing

Big image


In this MOVIE this hero was there


A computer network or data network is a telecommunications network which allows computers to exchange data. In computernetworks, networked computing devices exchange data with each other using a data link. The connections between nodes are established using either cable media or wireless media