Internal components, Backing Storage, Operating Systems Software
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Transcript of Internal components, Backing Storage, Operating Systems Software
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Internal components, Backing Storage, Operating Systems Software
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Hard Disk Drive (HDD)The HDD were commonly connected by an IDE (Integrated Drive electronics). This is a standard electronic interface between the motherboard and disk storage devices.
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IDE - cable
• IDE cable supports 2 drives.• To know which data relates to which drive,
each drive is identified as either the master or the slave drive.
• Master drive: handles and controls the traffic on the IDE cable
• Slave drive: sees only the data that is paased to it by the master drive.
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SATA
SATA cable is commonly used within latest PCs.
It stands for Serial ATA (Advanced Technology Attachment)
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PORTS
• Refer to page 46 of Unit 2 E – Book to see some examples that are available
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Transmissions
• Serial: 1 bit at a time (page 47)• Parallel: 1 Byte (8 bits) ata a time• USB: Universal Serial Bus, to make
connections easy as possible and allows ‘hot swapping’ – connecting or disconnecting devices whilst the PC is ON
• Find the data transfer rate for USB 2.0 & USB 3.0
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Backing Storage
• Primary• Secondary• Tertiary
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Backing storage performance factors
• Capacity:• Data transfer rate:
Research on the internet to find out the maximum data capacity of a USB stick, Flash memory cards and its data transfer rate if possible.
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Operating systems software
DOS: Disk operating system - Command line (CL)
Windows: GUI interface: Graphical User interface with a WIMP environment (Windows Icons mouse & pointers)
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OS
• machine and peripheral management, security, file management; device drivers; features eg ability to customize, support for
• connectivity of portable media, security, stability and reliability, ease of management, associated utilities,
• cost and support for the user.
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Device Driver
• Interface between the processor and the particular peripheral.
• Necessary when new hardware is installed.
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Software Utilities• Virus protection: A program that is designed to erase data
and corrupt files.Name few anti virus programs and why is it necessary to update
them regularly ?• Firewalls: A program that only allows authorised programs to work on
a particular PC and allows only certain data to pass in and out of the system.
Name a few firewall programs? Are they integrated with an Anti virus program??
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Clean up tools
Most of you have probably used many of the Cleanup tools. Therefore research and find out the following:
Internet Cookies: what are they? And how do you clean them up?
Defragmentation:Disc cleanup:Formatting Drives:
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P1
Identify the HW components you have learnt so far with diagrams and with supporting notes, explain the function of each component.
Construct it as a presentation using PowerPoint and explanation under the notes section.
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P2
• Explain the purpose of operating systems:
• Outline the basic functions of Operating systems explaining how they are used to facilitate users:
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M1
• Compare the features and functions of different operating systems
• Compare MS-DOS With Microsoft Windows