Computer Hardware

By Angeli Chohan

Hard Drive (HDD/SSD)/ Optical Drive/ Monitor/ Inuput/ Output Devices/ Touch Screens

Basic Information about Hard Drives:HDD-  A hard disk drive (HDD) is a data storage device used for storing and retrieving digital  information using rapidly rotating disks.SSD-  A solid-state drive (SSD) is a  is a data storage device using intergated circuit assemblies as memoryto store data persistantly.Optical Drive- An optical disc drive is a disk drive that uses laser light or electromagnetic waves within or near the visible light spectrum as part of the process of reading or writing data to or from optical discs.Montitor-  A device used for observing, checking, or keeping a continuous record of something.  Input and Output devices- Inputs  are the signals or data received by the system, and outputs are the signals or data sent from it.Touch Screens-  Touch Screens are a display device which allows the user to interact with a computer by touching areas on the screen.

CPU/ RAM/ MOTHERBOARDS

CPU- Also referred to as a central processor unit is the hardware within a computer that carries out the instructions of a computer programme by performing the basic arithmetical, logical, and input/output operations of the system.RAM-  RAM, laos reffered to random accees memory is a type of computer memory that can be accessed randomly.MOTHERBOARDS- MOTHERBOARDS are a printed circuit board containing the principal components of a computer or other device, with connectors for other circuit boards to be slotted into. 

Tim Burners-Lee & Alan Turing

Tim Burners-Lee Sir Timothy John "Tim" Berners-Lee  (born 8 June 1955), also known as "TimBL," is a British computer scientist best known as the inventor of the World Wide Web. He made a proposal for an information management system in March 1989, and he implemented the first successful communication between a Hypertext Transfer Protocol (HTTP) client and server via the Internet sometime around mid November. Alan Mathison Turing, OBE, FRS, was a British mathematician, logician, cryptanalyst, and computer scientist.

The 4 Generations Of Computers

Computers play a huge part in almost all of our lives, but how did these machines become so powerful and important? And what were some of the earliest models like? This collection of videos takes us through the Four Generations of computers, starting with Colossus, the world's first electronic computer (launched in 1944), and finishing with the BBC Micro (launched in 1981) and Fourth Generation Computers, looking at how technology changed throughout these years.