This document discusses system software and application software. It defines system software as programs that operate and control computer hardware to provide a platform for running application software. It lists common system software programs like assemblers, compilers, and file management tools. It then discusses operating systems in detail, explaining their functions like starting and shutting down computers, providing user interfaces, managing memory, coordinating tasks, configuring devices, and more. It also covers types of operating systems and defines application software as programs that perform useful tasks for users. It provides examples of different types of application software.
All types of computer including general and special purpose, Analog,digital, hybrid, microcomputer, minicomputer, mainframe computer and super computer.
All types of computer including general and special purpose, Analog,digital, hybrid, microcomputer, minicomputer, mainframe computer and super computer.
What is Computer Hardware and Software :: Computer Hardware is defined as the physical part or component of computer system which can be feel, seen and touched. Computer monitor which we use to view the display is a Hardware Device, A printer which we use to Produce ouputs,a computer memory which is used to store data or programs all are the types of hardware used in computer system for better functionality of computers.
Computer software can be defined as a set of instructions or collection of programs which are designed and developed to perform specific tasks. IT professionals develop customized programs which can be used in certain areas of our day to day life .These types of software or programs are very helpful and can reduce human efforts immensely.
This powerpoint presentation helps you to understand the characterstics of computer in brief....nd in very easy language...!! enjoy nd send me ur views....
Importance of I/O devices,Types of input devices,keyboard
Pointing devices,Speech recognition,Digital camera
Webcam,Scanners,OCR,OMR,MICR,Bar-code reader
What is Computer Hardware and Software :: Computer Hardware is defined as the physical part or component of computer system which can be feel, seen and touched. Computer monitor which we use to view the display is a Hardware Device, A printer which we use to Produce ouputs,a computer memory which is used to store data or programs all are the types of hardware used in computer system for better functionality of computers.
Computer software can be defined as a set of instructions or collection of programs which are designed and developed to perform specific tasks. IT professionals develop customized programs which can be used in certain areas of our day to day life .These types of software or programs are very helpful and can reduce human efforts immensely.
This powerpoint presentation helps you to understand the characterstics of computer in brief....nd in very easy language...!! enjoy nd send me ur views....
Importance of I/O devices,Types of input devices,keyboard
Pointing devices,Speech recognition,Digital camera
Webcam,Scanners,OCR,OMR,MICR,Bar-code reader
Scrum Framework: Manage Anything Efficiently and AccuratelyAmir Syafrudin
Note: This presentation is an update of my previous uploaded presentation found here: http://www.slideshare.net/AmirSyafrudin/scrum-methodology-managing-project-efficiently-and-accurately
This is a presentation material used to introduce Scrum Framework in the Directorate General of Taxes, Ministry of Finance, Republic of Indonesia.
Forensics: Human Identity Testing in the Applied Genetics GroupNathan Olson
"Forensics: Human Identity Testing in the Applied Genetics Group" presentation at the Standards for Pathogen Identification via NGS (SPIN) workshop hosted by the National Institute for Standards and Technology October 2014 by Peter Vallone, PhD from NIST.
Definition of Computer
Classification of Computer
Applications of Computer
Block Diagram and Working of Computer System
Different Peripheral Devices
Main Storage and Auxiliary Storage Devices
Computer Hardware and Software
Computer System Overview, Basic Components of Computer System, Operating System Services, Functions of Operating System, Types of Operating Systems: Instruction Execution Cycle, Interrupts & System Calls, Interrupt Processing, Processor Registers, I/O Communication techniques
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
2. System Software
System
software
is
computer
software designed to operate and control
the computer hardware and to provide a
platform for running application software.
The programs that are part of the system
software include assemblers, compilers, file
management tools,
system utilities,
and debuggers.
3. Operating System
An operating system is a program designed to run other programs
on a computer.
A computer’s operating system is its most important program.
It is considered the backbone of a computer, managing both
software and hardware resources.
Operating systems are responsible for everything from the control
and allocation of memory to recognizing input from external
devices and transmitting output to computer displays.
They also manage files on computer hard drives and control
peripherals, like printers and scanners.
4. Operating System Functions
Many different operating systems exist, designed
for all types of computers.
Regardless of the size of the computer, however,
most operating systems provide similar functions.
The operating system handles many of these
functions automatically, without requiring any
instructions from a user.
Some functions of operating systems are
discussed as under:
5. Operating System Functions
Starting and Shutting Down a Computer
The process of starting or restarting a computer is called booting.
Turning on a computer is called cold boot.
Warm boot is the process of using the operating system to restart a
computer.
Each time you boot a computer, the kernel and frequently
used operating system instructions are loaded, or copied,
from storage into the computer’s memory (RAM).
The kernel is the core of an operating system that manages
memory and devices, maintains the computer’s clock, starts
programs, and assigns the computer’s resources, such as
devices, programs, data, and information.
6. Operating System Functions
The steps in the following paragraphs explain what occurs during a
cold boot on a personal computer using the Windows operating
system.
Step 1: When you turn on the computer, the power supply sends an
electrical signal to the components in the system unit.
Step 2: The charge of electricity causes the processor chip to reset itself
and find the ROM chip(s) that contains the BIOS. The BIOS, which stands
for basic input/output system, is firmware that contains the computer’s
startup instructions.
Step 3: The BIOS executes a series of tests to make sure the computer
hardware is connected properly and operating correctly. The tests,
collectively called the power-on self test (POST ), check the various system
components including the buses, system clock, adapter cards, RAM chips,
mouse, keyboard, and drives. As the POST executes, LEDs (tiny lights)
flicker on devices such as the disk drives and keyboard.
Beeps also may sound, and messages may appear on the screen.
7. Operating System Functions
Step 4: The POST results are compared with data in a
CMOS chip. CMOS is a technology that uses battery
power to retain information when the computer is off.
The
CMOS
Complementary
metal–oxide–
semiconductor chip stores configuration information
about the computer, such as the amount of memory;
type of disk drives, keyboard, and monitor; the current
date and time; and other startup information. It also
detects any new devices connected to the computer. If
any problems are identified, the computer may beep,
display error messages, or cease operating —
depending on the severity of the problem.
8. Operating System Functions
Step 5: If the POST completes successfully,
the BIOS searches for specific operating
system files called system files. The BIOS
may look first to see if a USB flash drive
plugged in a USB port or a disc in an optical
disc drive contains the system files, or it may
look directly on drive C (the designation
usually given to the first hard disk) for the
system files.
9. Components of Computer
Step 6: Once located, the system files load into memory
(RAM) from storage (usually the hard disk) and execute.
Next, the kernel of the operating system loads into
memory. Then, the operating system in memory takes
control of the computer.
Step 7: The operating system loads system configuration
information. In the latest Windows versions, the registry
consists of several files that contain the system
configuration information.
10. Boot Disk:
A boot drive is the drive from which your personal
computer boots (starts). In most cases, drive C (the hard disk) is the
boot drive. Sometimes a hard disk becomes damaged and the
computer cannot boot from the hard disk, or you may want to
preview an operating system without installing it. In these cases,
you can boot from a special disk, called a boot disk or a recovery
disk, that contains a few system files that will start the computer.
Providing a User Interface
You interact with software through its user interface. That is, a user
interface controls how you enter data and instructions and how
information is displayed on the screen. Two types of user interfaces
are graphical and command-line. Operating systems often use a
combination of these interfaces to define how a user interacts with a
computer.
11. Graphical User Interface Most users
today work with a graphical user interface.
With a graphical user interface (GUI), you
interact with menus and visual images such as
buttons and other graphical objects to issue
commands. Many current GUI operating
systems incorporate features similar to those
of a Web browser, such as links and
navigation buttons (i.e., Back button and
Forward button).
12. Command-Line Interface
To configure devices, manage system resources, and
troubleshoot network connections, network administrators
and other advanced users work with a command-line
interface. In a command-line interface, a user types
commands or presses special keys on the keyboard (such as
function keys or key combinations) to enter data and
instructions (Figure 8-5).
Some people consider command-line interfaces difficult to
use because they require exact spelling, grammar, and
punctuation. Command-line interfaces, however, give a user
more control to manage detailed settings. When working
with a command-line interface, the set of commands entered
into the computer is called the command language.
13. Managing Programs
Some operating systems support a single user and only one running
program at a time.
Others support thousands of users running multiple programs.
A single user/single tasking operating system allows only one user
to run one program at a time.
Early systems were single user/single tasking. Smart phones and other
mobile devices, however, often use a single user/single tasking operating
system.
A single user/multitasking operating system allows a single user to work
on two or more programs that reside in memory at the same time.
When a computer is running multiple programs concurrently, one program
is in the foreground and the others are in the background.
The one in the foreground is the active program, that is, the one you
currently are using. The other programs running but not in use are in the
background.
14. Managing Memory
The purpose of memory management is to optimize the
use of random access memory (RAM).
The operating system allocates, or assigns, data and
instructions to an area of memory while they are being
processed.
Then, it carefully monitors the contents of memory.
Finally, the operating system releases these items from
being monitored in memory when the processor no longer
requires them.
If you have multiple programs running simultaneously, it
is possible to run out of RAM, the operating system may
have to use virtual memory to solve the problem.
15. Managing Memory
With virtual memory, the operating system allocates a portion of a
storage medium, usually the hard disk, to function as additional
RAM.
As you interact with a program, part of it may be in physical RAM,
while the rest of the program is on the hard disk as virtual memory.
Because virtual memory is slower than RAM, users may notice the
computer slowing down while it uses virtual memory.
The area of the hard disk used for virtual memory is called a swap
file because it swaps (exchanges) data, information, and instructions
between memory and storage. A page is the amount of data and
program instructions that can swap at a given time.
The technique of swapping items between memory and storage,
called paging, is a time-consuming process for the computer.
16. Coordinating Tasks
The operating system determines the order in which tasks are
processed. A task, is an operation the processor manages.
Tasks include receiving data from an input device, processing
instructions, sending information to an output device, and
transferring items from storage to memory and from memory
to storage.
A multiuser operating system does not always process tasks on
a first-come, first-served basis.
Sometimes, one user may have a higher priority than other
users. In this case, the operating system adjusts the schedule of
tasks.
Sometimes, a device already may be busy processing one task
when it receives a second task.
This occurs because the processor operates at a much faster
rate of speed than peripheral devices.
17. Configuring Devices
A driver, short for device driver, is a small program that
tells the operating system how to communicate with a
specific device.
Each device on a computer, such as the mouse, keyboard,
monitor, printer, card reader/writer, and scanner, has its
own specialized set of commands and thus requires its
own specific driver. When you boot a computer, the
operating system loads each device’s driver. These devices
will not function without their correct drivers.
If you attach a new device to a computer, such as a printer
or scanner, its driver must be installed before you can use
the device.
18. Configuring Devices
Today, most devices and operating systems support
Plug and Play.
Plug and Play means the operating system
automatically configures new devices as you install
them. Specifically, it assists you in the device’s
installation by loading the necessary drivers
automatically and checking for conflicts with other
devices. With Plug and Play, a user plugs in a
device, turns on the computer, and then uses the
device without having to configure the system
manually. Devices that connect to a USB port on
the system unit typically are Plug and Play.
19. Monitoring Performance
Operating systems typically contain a performance monitor. A
performance monitor is a program that assesses and reports
information about various computer resources and devices.
For example, users can monitor the processor, disks, network,
and memory usage.
The information in performance reports helps users and
administrators identify a problem with resources so that they
can try to resolve any problems. If a computer is running
extremely slow, for example, the performance monitor may
determine that the computer’s memory is being used to its
maximum.
Thus, you might consider installing additional memory in the
computer.
20. Providing
Utilities
File
Management
and
Other
Operating systems often provide users with
the capability of managing files, searching for
files, viewing images, securing a computer
from unauthorized access, uninstalling
programs, cleaning up disks, defragmenting
disks, diagnosing problems, backing up files
and disks, and setting up screen savers.
21. Updating Software Automatically
Many popular programs, including most operating
systems, include an automatic update feature
that automatically provides updates to the
program. With an operating system, these updates
can include fixes to program bugs, or errors,
enhancements to security, modifications to device
drivers, access to new or expanded components
such as desktop themes or games, and even
updates to application software on the computer
such as a Web browser.
22. Administering Security
Computer and network administrators typically
have an administrator account that enables them to
access all files and programs on the computer or
network, install programs, and specify settings that
affect all users on a computer or network.
Settings include creating user accounts and
establishing permissions. These permissions define
who can access certain resources and when they
can access those resources.
23. Controlling a Network
Some operating systems are designed to work with a server
on a network. A server operating system is an operating
system that organizes and coordinates how multiple users
access and share resources on a network.
Resources include hardware, software, data, and
information. For example, a server operating system
allows multiple users to share a printer, Internet access,
files, and programs.
Some operating systems have network features built into
them. In other cases, the server operating system is a set of
programs separate from the operating system on the client
computers that access the network.
24. Types of Operating Systems:
The three basic categories of operating systems that exist today
are stand-alone, server, and embedded.
A
stand-alone operating system is a complete operating
system that works on a desktop computer, notebook
computer, or mobile computing device. Some stand-alone
operating systems are called client operating systems because
they also work in conjunction with a server operating system.
Client operating systems can operate with or without a
network. Other stand-alone operating systems include
networking capabilities, allowing the home and small
business user to set up a small network.
Examples of currently used stand-alone operating systems
are Windows Vista, Mac OSX, UNIX, and Linux.
25. Server Operating Systems
A server operating system is an operating system that is
designed specifically to support a network.
A server operating system typically resides on a server. The
client computers on the network rely on the server(s) for
resources.
To meet the needs of all sizes of businesses, the
Windows Server 2008 family includes many editions, with the
more common listed below:
• Windows Server 2008 Standard for the typical small- to
medium-sized business network
• Windows Server 2008 Enterprise for medium to large-sized
businesses, including those with e-commerce operations
• Windows Server 2008 Datacenter for businesses with huge
volumes of transactions and large-scale databases.
26. Embedded Operating Systems
The operating system on mobile devices and
many consumer electronics, called an
embedded operating system, resides on a
ROM chip.
Popular embedded operating systems today
include Windows Mobile, Palm OS, iPhone
OS, BlackBerry, embedded Linux, and
Symbian OS.
27. Application Software
Application software is all the computer software
that causes a computer to perform useful tasks beyond the
running of the computer itself. Also known as software
application, application program or application.
The term is used to contrast such software with system
software, which manages and integrates a computer's
capabilities but does not directly perform tasks that
benefit the user. The system software serves the
application, which in turn serves the user.
28. In information technology, an application is a
computer program designed to help people
perform an activity. An application thus differs
from an operating system (which runs a computer),
a utility (which performs maintenance or generalpurpose chores), and a programming tools (with
which computer programs are created).
Examples
include
accounting
software,
enterprise software, graphics software, media
players, and office suites. Many application
programs deal principally with documents.
Applications may be bundled with the computer
and its system software or published separately.
29. Application software classification
There are many types of application software:
An application suite consists of multiple applications bundled
together. They usually have related functions, features and user
interfaces, and may be able to interact with each other, e.g. open
each other's files. Business applications often come in suites, e.g.
Microsoft Office, and iWork, which bundle together a word
processor, a spreadsheet, etc.; but suites exist for other purposes, e.g.
graphics or music.
Enterprise software addresses the needs of an entire organization's
processes and data flow, across most all departments, often in a
large distributed environment. (Examples include financial systems,
customer relationship management (CRM) systems and supply
chain management software).
30. Enterprise infrastructure software provides common
capabilities needed to support enterprise software systems.
(Examples include databases, email servers, and systems for
managing networks and security.)
Information worker software lets users create and manage
information, often for individual projects within a department, in
contrast to enterprise management. Examples include time
management,
resource
management,
documentation
tools,
analytical, and collaborative. Word processors, spreadsheets, email
and blog clients, personal information system, and individual media
editors may aid in multiple information worker tasks.
31. Simulation software
simulates physical or abstract systems
for either research, training or entertainment purposes.
Media development software
generates
print
and
electronic media for others to consume, most often in a commercial
or educational setting. This includes graphic-art software, desktop
publishing software, multimedia development software, HTML
editors,
digital-animation
editors,
composition, and many others.
digital
audio
and
video
32. Product engineering software is
used in developing hardware and software
products. This includes computer-aided
design (CAD), computer-aided engineering
(CAE), computer language editing and
compiling tools, integrated development
environments, and application programmer
interfaces.