The History All About Computing

Everything you need to know!

How long have Computers been around?

There was huge computers that took over rooms in the 1940's that were used in government situations. The first personally owned computer was founded in the 1980's but was very expensive.
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Computers nowadays.

Computers now are made up of seven key things:

RAM

CPU

Power supply

Network card

Graphics card

Mother Board

Hard Drive

Before...

If you was lucky enough to own your own computer in the 80's, you would have access to around two game. Snake and Pacman.

After...

Now computers can handle intense graphics and fast search engines that give great experiences for users and they now have the ability to connect with other computers.

Types of computers

Apple Mac

Laptop

PC

RAM

RAM (pronounced ramm) is an acronym for random access memory, a type of computer memory that can be accessed randomly; that is, any byte of memory can be accessed without touching the preceding bytes.RAM is the most common type of memory found in computers and other devices, such as printers.

CPU

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. The term has been used in the computer industry at least since the early 1960s. Traditionally, the term "CPU" refers to a processor, more specifically to its processing unit and control unit (CU), distinguishing these core elements of a computer from external components such as main memory and I/O circuitry.

Power supply

A power supply is an electronic device that supplies electric energy to an electrical load. The primary function of a power supply is to convert one form of electrical energy to another and, as a result, power supplies are sometimes referred to aselectric power converters. Some power supplies are discrete, stand-alone devices, whereas others are built into larger devices along with their loads. Examples of the latter include power supplies found in desktop computers and consumer electronics devices.

Video\graphics card

video card (also called a video adapter, display card, graphics card, graphics board, display adapter, graphics adapter or frame buffer[1]) is anexpansion card which generates a feed of output images to a display (such as a computer monitor). Frequently, these are advertised as discrete or dedicatedgraphics cards, emphasizing the distinction between these and integrated graphics.

Motherboard

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.

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.

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 have network cards. Network cards enable a computer to exchange data with the network. To achieve the connection, network cards use a suitable protocol, for example CSMA/CD. Network cards usually implement the first two layers of the OSI model, that is the physical layer, and the data link layer. Today, most network cards use Ethernet. Other network types are ARCNET, introduced in 1977, LocalTalk orToken Ring. There are many network cards which are compatible to only respective software.

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.

Alan Turing

Alan Mathison Turing OBE FRS (/ˈtjʊərɪŋ/; 23 June 1912 – 7 June 1954) was a pioneering English computer scientist,mathematician, logician, cryptanalyst and theoretical biologist. He was highly influential in the development oftheoretical computer science, providing a formalisation of the concepts of algorithm and computation with the Turing machine, which can be considered a model of a general purpose computer.

Computer Networks

A computer network is made up of...


  • Two or more computers
  • A router
  • A HUB switch

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