presentation on software,hardware and input output devices

Presentation in Honourto

Sir “Ali Abbas”

Institute of CS & IT

By

Tabinda Imtiyaz

Roll # 30

COMPUTER SCIENCE 1st SEMESTER MORNING

Types of computer

Computer

Personal Computers

Desktop Computers

Work Stations

Notebook

Smart Phones

Tablet Computers

Hand-Held Computers

OrganizationalComputers

Network Server

MainframeComputer

Mini Computers

Super Computers


Personal Computers

Desktop Computers:A computer designed to fit comfortably on top of a desk. These computers are the most common type of single use computer. Normally, they one microprocessor for processing. However, for multiprocessing more microprocessors can be added. There are two famous models of Desktop Computers.

Work Stations:These Computers are single use computers used for specialized jobs. Examples: In engineering, in animations, in architecture designing.

Notebook:These computers are comparatively small computer than desktop computers. The are portable in nature.Normally, these computers are placed on our laps,Also known as Laptops.


Personal Computers

Tablet Computers:These are also portable computers but lighter than notebook computers. They receive input from digital pen or stylus.

Hand-held Computers:These are the computers usually held in hand. Some manufacturers are trying to solve the small keyboard problem by replacing the keyboard with an electronic pen. Hand-held computers are also called PDAs, palmtops and pocket computers.

Smart Phones:These are the computers including few features or hand-held computer.


Organizational use of

Computer

Network Server:These are the combination of one or more centralized computer. In these Network Server different users can access different services of the network.

Mainframe Computers:Mainframe computers are used in large scale. Like, Schools, banks, universities etc. These are large scale computers. People can access the services using their PC’s called Terminal.

Mini Computers:These computers are purposed around 1960’s and were smaller in size than other computers of that time. Their capacity falls within mainframe and PC’s. they are also called mid range computers.


Organizational use of

Computer

Super computers:These computers are considered the best computers . They are used for fulfilling complicated tasks.Like, weather forecasting, nuclear fission.

TYPES OF SOFTWARE

Tabinda Kokab

ROLL # 08


Types of software:

What is Software?

A set of instructions, stored digitally within the computer’s memory, which tells the computer what to do.

There are different categories of software , including system software, utilities and applications software.


Types of Software:

System software:It is the software used to manage and control the hardware components and which allow interaction between the hardware and the other types of software. The most obvious type of system software is the computer's operating system.

Utility software:It is software such as anti-virus software, firewalls, and so on which helps to maintain and protect the computer system but does not directly interface with the hardware.


Types of Software

Applications software:

(also known as 'apps') are designed to allow the user of the system complete a specific task or set of tasks. They include programs such as web browsers, office software, games and so on.

MAHAM AYUB

Roll # 35


Hardware

components of system

What is Hardware?The hardware components of a computer system are the electronic and mechanical parts. The major hardware components of a computer system are:

•Processor•Main memory•Secondary memory•Input devices•Output devices


PROCESSOR

CPU:

A central processing unit (CPU), is the hardware within a computer that carries out the instructions of a computer program by performing the basic arithmetical, logical, and input/output operations of the system.

Components of CPU:Two typical components of a CPU are the arithmetic logic unit (ALU), which performs arithmetic and logical operations, and the control unit (CU), which extracts instructions from memory and decodes and executes them.


MAIN MEMORY

Refers to physical memory that is internal to the computer. The word main is used to distinguish it from external mass storage devices such as disk drives. Another term for main memory is RAM.

The computer can manipulate only data that is in main memory. Therefore, every program you execute and every file you access must be copied from a storage device into main memory. Now, most PCs come with a minimum of 32 megabytes of main memory. You can usually increase the amount of memory by inserting extra memory in the form of chips.


SECONDARY MEMORY

Secondary memory is used to store program & data for the long period of time. Common secondary storage devices are the hard disk and optical disks.

The hard disk has enormous storage capacity compared to main memory.The hard disk is usually contained inside the case of a computer.The hard disk is used for long-term storage of programs and data.Data and programs on the hard disk are organized into files.A file is a section of the disk that has a name.


INPUT DEVICES

In computing, input devices are any peripheral device, used to enter data, information & control signals into the computer to perform specific tasks. Examples of input devices are keyboards, mouse, scanners, digital cameras and joysticks.


OUTPUT DEVICES

In computing, output devices are any peripheral device, used to get output from the computer in useful information or in human-readable form.

Examples: The examples of output devices are ,•Speakers.•Headphones.•Screen (Monitor).• Printer.•Projector.•Plotter.•Television.

KINZA ARSHAD


Finding SUM by using Formula


By _______ drag the mouse


Formula for finding Average


By ________ drag the mouse

THANK YOU

!!!!!!!!!!!!!!!!!!!!!

Documents

presentation on software,hardware and input output devices