ITM 215 Class 6 and 7 Feb 9

ITM 215 Class 6 and 7 Feb 9 - Click to edit Master subtitle...

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Click to edit Master subtitle style ITM 215: Computer Applications in Business Storage, Operating Systems & Utilities
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Discovering Computers Fundamentals, 2010 Edition Objectives Overview {F9022B54-68C2-4973-9A00-460029290542} city, platters, read/write heads, cylinders, sectors and tracks, and revolution {24D7137A-D6FF-4828-9FFC-EB2B56AEA4FA} k attached storage devices, external and removable hard disks, and hard disk {3F4A46C2-0F68-485A-8115-17AAAF29D42F} Describe the various types of flash m {0D1174E1-B103-40A9-87CA-0FE55BCCDE50} Describe cloud storage and explain its advantages 22
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Discovering Computers Fundamentals, 2010 Edition Objectives Overview {C23E5400-4B14-47B1-9B05-593F06D146F6} Describe the characteristics of optic {5E0EF928-F9EF-4ABC-A537-809A8AB02989} Differentiate among various types of optical discs {F053AE99-228A-41F5-8FF8-FC8CF8479F0B} cards, smart cards, microfilm and microfiche, and enterprise storage 33
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Discovering Computers Fundamentals, 2010 Edition Objectives Overview {F9022B54-68C2-4973-9A00-460029290542} fine system software and identify the two types of system software {B88529E6-EEED-48E1-9CC3-0DD09A5ACD3F} Describe the functions of an operating system {67741E40-3C46-4B9D-9C33-9E67B0802B0E} he features of several stand-alone operating systems {B7FB8EC0-C6AF-49D2-AD23-1990FABA4CEE} Briefly describe several embedded operating s {8FFEBE44-F61A-41E5-9EB5-BEA24FECB211} Explain the purpose of several {5C7CF296-F48B-4E4B-B539-B1BCDA50F70C} ous server operating systems 44
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Discovering Computers Fundamentals, 2010 Edition Storage {FCACE2AF-FF2C-453A-B852-48943124CCDF} ds data, instructions, and information for future use {8E776CDE-632F-4C42-9099-A62E4BE120B7} A storage medium is the physical material on which a computer keeps d 55
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Storage What is capacity ? Next Kilobyte (KB) 1 thousand Megabyte (MB) 1 million Gigabyte (GB) 1 billion Terabyte (TB) 1 trillion Petabyte (PB) 1 quadrillion Ø Number of bytes a storage medium can hold Exabyte (EB) 1 quintillion Zettabyte (ZB) 1 sextillion Yottabyte (YB) 1 septillion
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Writing Process of transferring items from memory to storage media Storage What is a storage device ? Next Reading Process of transferring items from storage media to memory Hardware that records and retrieves items to and from storage media Functions as source of input Creates output
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Storage What is access time ? p. 222 Ø Time it takes storage device to locate item on storage medium Next Ø Time required to deliver item from memory to processor
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Magnetic Disks Next What are tracks and Track is narrow recording band that forms full circle on disk Sector stores up to 512 bytes of data
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Perpendicular recording Magnetic Disks What is a hard disk ? Next hard disk installed in system unit Ø High-capacity storage Ø Consists of several inflexible, circular platters that store items electronically Ø Components enclosed in airtight, sealed case for protection Longitudinal recording
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Magnetic Disks What are characteristics of a hard disk?
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