Information Technology Revision 2012

itRevision Notes for ICT GCSE 2011 Current and Emerging Technologies reckoner hardw atomic number 18 computing device hardware is the word affiance to describe devices. These are the split of the computing machine scheme you stern touch and see. Hardware accepts the parts you hind break see from the exterior and too the parts inside the boxes. Examples include monitor/screen, mo hold, motherboard, printer, and keyboard. software scheme These are programs that the computer runs. Programs are stored instructions that tell the computer what to do. Software comes in 2 parts: Applications these do the jobs that the user expects, and operating(a) Systems (OS) these control the hardware so that the user and their applications put up easily make use of it. Examples include word-processing, entropybase, spreadsheet, presentation, meshing design, weave browser, graphics, photo editing and Operating Systems software such as Windows, Linux, and Mac OS. CPU (Central process Unit) It is the brains of the computer and it is the most sonorous element of the whole computer system. It sits on the Motherboard. Memory It is localize in the IAS (Immediate Access System).

thither are two casefuls: * read-only store (Read Only Memory) * It is computer retrospect which data has been pre-recorded on * Cant be removed, ONLY READ * Non- vapourific, for congresswoman Windows * RAM (Random Access Memory) * data processor computer memory that prat be accessed randomly * Most special K type of memory in computers and other devices * Temporary, fast and volatile as soon as you turn the computer off, you pull back each(prenominal) the data unless you save it first, e.g. Word-processing * much RAM, better quality! Motherboard The main circuit board of a microcomputer. It contains the CPU, memory, BIOS, and more. Video cards - A circuit board fitted to a computer, containing the necessary video memory and other electronics to provide a bitmap display. Adaptors vary in the resolution (number of pixels) and number of colour they can display, and in the glow up rate they support. Input...If you want to get a all-embracing essay, pitch it on our website: Orderessay

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