ºÝºÝߣ

ºÝºÝߣShare a Scribd company logo

Lec1 ict

•Download as PPTX, PDF•
•
A
Atta Khalil

A computer is an electronic device that processes data through an input device, storage, and output device. It contains hardware components like a system unit, storage, input, and output devices. Computers provide advantages like speed, reliability, and consistency but also health risks and impact privacy and the environment. Networks connect computers through communication devices and the Internet is a worldwide collection of networks used for communication, research, shopping, banking, entertainment and more. Computer software includes operating systems, applications, and programs that tell the computer how to process data. There are different types of computers including personal computers, mobile devices, servers, mainframes, supercomputers, and embedded computers.

1 of 11
Download to read offline
Introduction to Computers What Is a Computer? A computer is an electronic device, operating under the control of instructions stored in its own memory Collects Produces data Processing information (input) (output)
Components of a Computer • A computer contains many electric, electronic, and mechanical components known as hardware Input Device. • Allows you to enter data and instructions into a computer Output Device. • Hardware component that conveys information to one or more people. •Components of the computer that System Unit are used to process data Storage Device. • Holds data, instructions, and information for future use Communications.
Advantages and Disadvantages Advantages and Disadvantages of Using Computers Speed Health Risks Reliability Violation of Privacy Consistency Public Safety Storage Impact on Labor Force Communications Impact on Environment.
Networks and the Internet • A network is a collection of computers and devices connected together, often wirelessly, via communications devices and transmission media. • The Internet is a worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals.
Cont… • People use the Internet for a variety of reasons: Communicate Research and Shop Bank and Invest Online Trading Access Information Entertainment Download Videos Share Information Web Application. • A social networking Web site encourages members to share their interests, ideas, stories, photos, music, and videos with other registered users.
Computer Software • Software, also called a program, tells the computer what tasks to perform and how to perform them System Software. • Operating system • Utility program Application Software Computer Software. • printer, and other hardware.
Computer Software • A programmer develops software or writes the instructions that direct the computer to process data into information. Categories of Computers are Personal computers Mobile computers, mobile devices, Servers Mainframes, Supercomputers and Embedded computers.
Personal Computers • A personal computer can perform all of its input, processing, output, and storage activities by itself. • Two popular architectures are the PC and Desktop computer.
Mobile Computers and Mobile Devices Mobile Computers and Mobile Devices are Computer Device that device can carry from place to small enough to hold in place your hand. Examples include smart phones, PDAs, notebook computers, handheld computers, laptop computers, players, and digital and Tablet PCs cameras.
Computers Servers : • A server controls access to the hardware, software, and other resources on a network – Provides a centralized storage area for programs, data, and information. Mainframes: • A mainframe is a large, expensive, powerful computer that can handle hundreds or thousands of connected users. Supercomputers: • A supercomputer is the fastest, most powerful computer – Fastest supercomputers are capable of processing more than one quadrillion instructions in a single second.
Conti… Embedded Computers: • An embedded computer is a special-purpose computer that Controllers Computer Devices Automobiles Electronics Devices and Robotics and Office Machines. • Thermostats • Remote monitoring • Keyboards telephones • Printers • Faxes• Cameras monitoring systems • Machine • Copiers• Video recorders • DVD players • Medical devices recorders and Answering machines.

More Related Content

Lec1 ict

  • 1. Introduction to Computers What Is a Computer? A computer is an electronic device, operating under the control of instructions stored in its own memory Collects Produces data Processing information (input) (output)
  • 2. Components of a Computer • A computer contains many electric, electronic, and mechanical components known as hardware Input Device. • Allows you to enter data and instructions into a computer Output Device. • Hardware component that conveys information to one or more people. •Components of the computer that System Unit are used to process data Storage Device. • Holds data, instructions, and information for future use Communications.
  • 3. Advantages and Disadvantages Advantages and Disadvantages of Using Computers Speed Health Risks Reliability Violation of Privacy Consistency Public Safety Storage Impact on Labor Force Communications Impact on Environment.
  • 4. Networks and the Internet • A network is a collection of computers and devices connected together, often wirelessly, via communications devices and transmission media. • The Internet is a worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals.
  • 5. Cont… • People use the Internet for a variety of reasons: Communicate Research and Shop Bank and Invest Online Trading Access Information Entertainment Download Videos Share Information Web Application. • A social networking Web site encourages members to share their interests, ideas, stories, photos, music, and videos with other registered users.
  • 6. Computer Software • Software, also called a program, tells the computer what tasks to perform and how to perform them System Software. • Operating system • Utility program Application Software Computer Software. • printer, and other hardware.
  • 7. Computer Software • A programmer develops software or writes the instructions that direct the computer to process data into information. Categories of Computers are Personal computers Mobile computers, mobile devices, Servers Mainframes, Supercomputers and Embedded computers.
  • 8. Personal Computers • A personal computer can perform all of its input, processing, output, and storage activities by itself. • Two popular architectures are the PC and Desktop computer.
  • 9. Mobile Computers and Mobile Devices Mobile Computers and Mobile Devices are Computer Device that device can carry from place to small enough to hold in place your hand. Examples include smart phones, PDAs, notebook computers, handheld computers, laptop computers, players, and digital and Tablet PCs cameras.
  • 10. Computers Servers : • A server controls access to the hardware, software, and other resources on a network – Provides a centralized storage area for programs, data, and information. Mainframes: • A mainframe is a large, expensive, powerful computer that can handle hundreds or thousands of connected users. Supercomputers: • A supercomputer is the fastest, most powerful computer – Fastest supercomputers are capable of processing more than one quadrillion instructions in a single second.
  • 11. Conti… Embedded Computers: • An embedded computer is a special-purpose computer that Controllers Computer Devices Automobiles Electronics Devices and Robotics and Office Machines. • Thermostats • Remote monitoring • Keyboards telephones • Printers • Faxes• Cameras monitoring systems • Machine • Copiers• Video recorders • DVD players • Medical devices recorders and Answering machines.