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MT-113 COMPUTER APPLICATIONS

MT-113 COMPUTER APPLICATIONS. Lecture #1 By Syed Ehtisham Gillani. The Role of Computers. In Business and Industry In Publication Field In Education Field In Government Organizations In Medical Field In Science Field In Entertainment Field. Definition of Computer.

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MT-113 COMPUTER APPLICATIONS

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  1. MT-113 COMPUTER APPLICATIONS Lecture #1 By Syed Ehtisham Gillani

  2. The Role of Computers In Business and Industry In Publication Field In Education Field In Government Organizations In Medical Field In Science Field In Entertainment Field

  3. Definition of Computer A computer is an electronic device that Takes input such as numbers, text, sound, image, animations, video, etc., Processes it and Converts it into meaningful information that could be understood and present that information as output on a display.

  4. Parts of a Computer Input Devices (Keyboard, Mouse, etc.) Output Devices (Monitor, Speakers, etc.) Central Processing Unit (CPU) and memory Motherboard (Circuit Board) Expansion Cards (Video Card, Sound Card, Wi-Fi card etc) Hard Drive Ports and Connections (USB, LAN, etc.) Power Supply Unit (PSU)

  5. Parts of a Computer Input Devices Mouse Keyboard Microphone Scanner Webcam

  6. Parts of a Computer Output Devices Monitor Printer Speaker/Headphone

  7. Parts of a Computer Central Processing Unit (CPU) A device that interprets and runs the commands that you give to the computer. Also referred to as the processor. Two major brands are Intel and AMD. Examples: Intel Core 2 Duo, AMD Turion X2

  8. Parts of a Computer Memory • Memory is where information is stored and retrieved by the CPU. • There are two main types of memory: • Random Access Memory (RAM): It is the main memory and allows you to temporarily store commands and data. • Read Only Memory (ROM): It is the memory that retains its contents even after the computer is turned off.

  9. Parts of a Computer Motherboard • Is the main circuit board inside the computer. • Has tiny electronic integrated circuits (IC)and other components on it. • Connects input, output, and processing devices together (CPU, Memory, Hard Drive, DVD Drive) • Tells the CPU how to run.

  10. Parts of a Computer Expansion Cards Video Card – is connected to the computer monitor and is used to display information on the monitor. Sound Card– converts audio signals (microphone or audio tape) which can be stored as a computer audio file.

  11. Parts of a Computer Storage Devices Hard Disk Flash Drive CD-ROM DVD-ROM

  12. Parts of a Computer Ports and Connections Universal Serial Bus (USB) Port Network Port (Ethernet) Parallel Port and Serial Port Display Adapter Power

  13. Parts of a Computer Power Supply Unit (PSU) A power supply unit (or PSU) converts AC voltage (220v) to low-voltage regulated DC power for the internal components of a computer.

  14. Using a Computer To turn on a computer, press the power button on the system unit. Log on to the operating system by your user name and password. Computers allow you to create, modify, and save files. To shut down a computer, click Start, and then, at the bottom of the Start menu, click Shut Down.

  15. Using a Keyboard

  16. Using a Mouse A mouse is a small device that you can use to move, select, and open items displayed on your monitor. Most mouse devices have at least two buttons, left and right. Mouse’s action: Point Double Click Left Click Right Click Click-and-Drag or Drag-and-Drop

  17. Using a Mouse (cont.) Different types of mouse devices available in the market: • Regular mouse • Trackball mouse • Optical mouse

  18. Thank you!

  19. In business and industry,We use computers to maintain accounts, create personnel records, track inventory, prepare presentations and reports, manage projects, and communicate by e-mail. • computers are used to design any type of publication ranging from simple newsletters to fashion magazines, marketing materials, books, or newspapers. • In the field of education, trainers use computers to deliver training through audio-visual learning aids, maintain student records to track performance, search for information on different topics, and create or submit assignments. • In government organizations, computers are used to organize information by storing and updating records, providing services to citizens. For example, you can view information on current policies and government issues on a computer. Back

  20. In the field of medicine, doctors use computers to review medical reports and records of patients, to find information about the latest drugs available to treat a disease. All latest X-ray, CT Scan and MRI machines are computer operated. • Computers are used to view the details of bank accounts. Traders use computer technology to get instant information on stock markets, to trade stocks, and to manage investments. • Scientists use computers for scientific research, and to gather and analyze information. For example, they use computers to view images from space and to publish information on their recent research. • computers are used to create drawings and paintings. Photographers use computers to edit and enhance pictures. Writers use computers to write content for their books and to also create illustrations. Back

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