ec501 operating systems

8/11/2019 ec501 operating systems

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Student:

Syed Abdul Malik Bin Syed A Bakar

Matrics:

13DTK10F1049

Lecture:

Azlin binti Yajid

Subject: EC503 ( operating systems)


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Typical installation

Set by manufacture.

Automatic choose setting

Recommended for new user

May or may not includeuser wanted features

Full installation

Install full component All features are included

Need more space

Type of Installation


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Minimal installation

Set by manufacture

Automatic choose setting

Basic features only Minimal space required

Recommended for low-end computer

Custom Set By user

Manual setting by installer (user)

For professional user

Operation stability covered by user


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Basic Option of Installation

Clean installation

New system

No upgradepath exists

Format or create new partition

Deletes all data on the partition

Existing OS has damaged

Upgrade installation

Same OS platform is often possible

Replace the old OS files with the newOS files.

All personal data and setting are

remain undelete


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Multiboot

more than one OS in single P

Each OS is contained within its own

partition

own files and configuration settings

User choose on startup process

Only one OS can run at a time

Has full control of the hardware

(running OS)

Virtualization

Multiple copies of an OS on single PC

Treated as a separate computer

Single physical resource appear to

function as multiple logical resources

Demands more physical resources such

as CPU processing and RAM


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Configure a computer for the network

1. First, unplug or turn off the cable or DSL modem.

2. Power up your wireless router and connect the network cable that

most likely comes with it into the port on the router that is labeled

"Internet" or "WAN.

3. Connect the other end to the cable or DSL modem and power up

the modem.

4. open the browser and go to address 192.168.1.15. use default user =admin and password = admin

6. Select set up a new connection or network or quick setup

7. Follow the instruction. And set the wireless connection name and

password

8. Save the setting and restart the modem9. In the


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Open the control panel and go to network and sharing

center

Check the active network

Click at Local Area Connection. Then open the properties >

internet protocol version 4 (TCP/IPv4)


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Manual setting Automatic setting

Choose the setting either manual or automatic setting.


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How to change computers name

Control Panel>All Control Panel Items>System

Click change setting then click change


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On computers name . Type the new desired name

Click ok then, a message box will appear said that computer need to

restart for new change take place

After restart, the process complete and the computers name should

change


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To give the computer unique ID and address

Allow the computer to connect and share file and

information Prevent the complication between computer

address with other computer in same network

Easy to detect the unauthorized access of the

computer

Easy to manage ,register and setup new computer

in the network

Can monitor the activity in the network

Identify the purpose of planning network names and

address.


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Patches

Program code that can correct a problem

Provided by the manufacturer

2 types ( operating systems @ application patch)

Repair a known vulnerability or reported problem

What is patch ?

Patch Function

Latest security updates

Assure system compliance with government regulations

Keep systems running at peak efficiency

Fix drivers issues

Fix systems crash

To keep your computer protected from the viruses and etc..

Fixing vulnerabilities before they are exploited


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Operating system patch.

Via Windows update / software update (mac @apple and android)

Can be found in systems setting


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Operating systems Application

A patch is a piece of program

code that can correct a

problem of an OS

Repair a detected vulnerability

in the application.

Fix multiple bugs in operating

systems including

incompatibility with

applications.

Fix bugs in its own

applications only.

Give effect to all systems

component

Give effect to single

application.

Released by OS(s) company @

OS developer

(officially)

Patches are usually released

by the manufacturer of

application

Large size Small size


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Multitasking

Run multiple task in single time

Shared the very same resource ( CPU and RAM)

Use time sharing systems Quickly switch between each computing task

Give the impression the different applications are executing multiple

actions simultaneously.

Use memory allocation to store temporary data of task

2 types of multitasking

Preemptive multitaskingall activity are control by CPU

Cooperative multitaskingtask decide the utilization of resource

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Multithreading

Extends the idea of multitasking into

applications

Subdivide specific operations within a single

application into individual threads

Divides processing time among thread

More efficient CPU use

Better system reliability

Improved performance on multiprocessorcomputers

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Multiprocessing Two or more central processing units (CPUs) within a single computer system

Also known as multicore processing

Each core process different task , program @thread Share same resources ( Ram ,Data, L1 cache)

Different L2 @ L3 cache

Faster processing time

Utilized more resource

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NTFS

New Technology Files System

introduced by Microsoft in 1993

supports hard drive sizes up to 256TB]

The security is provided to the level of files and folders. Provides security for both local and remote users

Supports file compression.

Provides lesser possibility of fragmentation.

supports bad cluster mapping and transaction logging.

FAT

File Allocation Table

simple and robust

The file and folder level security permission does not exist. Single file size can be up to 4 GB

Disk can get fragmented thus slowing down the access.

Suitable for small size storage


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Divide main memory is partition into equal-fixed sized

Each process is also divided into small partition of the same

size called pages

The process page assigned to the available partition in mainmemory called frames

Avoids the problem of fitting varying-sized memory segments

into backing store

Easy to allocate physical memory Easy to page out chunks of programs

PAGING


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Memory address that a process uses to access

its own memory

The virtual address is not the same as the actual physical RAM

address in which it is stored

When a process accesses a virtual address, the Memory

Management Unit hardware translates the virtual address into aphysical address

The OS determines the mapping from virtual address to physical

address

Used to keep track of its own program. Virtual addresses allow isolation and relocation

Virtual Address


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Documents

ec501 operating systems