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computer data storage

            
             US2780 Element 5- Show a understanding of computer data storage.
             On a computer, data is stored in the drives and discs. .
             Data that is stored on a computer is stored in either 3 drives which are "A drive" (floppy disk) "C drive" (hard disk) or "S drive." (server).
             All of the information and instructions for the computer are stored in files. These files can be on the hard drive, a floppy disk or a CD. .
             Points to remember: - All data is stored in a file in a particular file format.
             -Each document is a separate file.
             -All applications read at least one file format.
             -Many applications read multiple file formats.
             -Your data files are separate from the application.
             Nearly every desktop computer and server in use today contains one or more hard-disk drives.
             Data is stored in files so that it is kept safe and you know where to go next time you want to open that work. All data is stored in files, a file is a named collection of bytes.
             Hard drive-Data is stored onto the disk in the form of files. When a program running on the computer requests a file, the hard drive retrieves its bytes and sends them to the CPU one at a time. In the "c" drive data is stored on the surface of a platter in sectors and tracks. The "c" drive is connected directly to the motherboard. The process of low-level formatting a drive establishes the tracks and sectors on the platter. The starting and ending points of each sector are written onto the platter. This process prepares the drive to hold blocks of bytes. High-level formatting then writes the file-storage structures, like the file-allocation table, into the sectors. This process prepares the drive to hold files. Floppy disk-The floppy disk drive is used to imput data to your computer and also store and save data which can be later used. The "a" drive also enables you to copy files from a floppy disc to your hard disc, because this data is stored on a disk it is taking up no space on your computer.


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... than any previous computer. It used punch cards to input and output data; registers served as memory storage. Though fully programmable, the ENIAC had to be rewired and switched for each new program. This flaw was fixed in 1947 with the appearance of the EDVAC and UNIVAC. These computers used random access memory, or RAM, to store programs and for data storage. Early computers were ... the beginning of modern day computing. On September 13, 1956, a small team of IBM engineers in San Jose introduced the first computer disk storage system. The 305 RAMAC (Random Access Method of Accounting...

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2. Computer buying

... drive, one internal hard drive, and a CD-ROM or DVD drive. The hard drive is the main storage unit of the computer, used for storage of programs and data files, so a high-capacity drive is desirable. Storage capacity, speed, and controller type are typically specified in today==s computer ads. Most computers are generally shipped with at least a 10 GB hard drive, as many of today==s application ... programs are quite large. CD-ROM (Compact Disc - Read Only Memory) drives are optical disks that are physically the same as an audio CD, but contain computer data. The speed of ... CD-ROM dr...

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3. Computer Storage - Primary and Secondary

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4. Future Optical Computer Storage-Holographic Memory

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6. Computer Architecture

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7. Storage Hardware

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8. Computer Basics

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9. Why I own a Computer

... computers and the Internet are so important to have access to. Webster's New World Compact Dictionary defines a computer as "an electronic machine that performs rapid, complex calculations or compiles and correlates data" (Computer, 1995, p.226). While this definition gives one a very narrow view of what a computer is capable of doing, it does describe the basic ideas of what I will expand upon. We have ... the parts are. All computers perform the four basic operations of the information processing cycle: input, process, output, and storage. Data, any kind of raw facts, is required for ...

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