ICT

• What are the Main Components of a Computer?

  Motherboard

  Central Processing Unit (CPU)

  Memory

  Hard Drive (hard disk storage)
• The motherboard is the foundation of a computer.
• Attached to the motherboard are the CPU, memory, hard drive, monitor, mouse, keyboard, add-on cards, even peripherals like printers, scanners, and speakers.
• We can compare the motherboard to the nervous system and skeleton of the human -- it provides support for the internal body components and also passes information between the computer parts
• Without it nothing runs.

  Motherboard
• It is the place where the computer processes data and coordinates tasks among different components of the computer.

  CPU is the "brain" of the computer
• It does the calculations, the processing of data, the reading (and interpreting) of the computer code and converts it to whatever output we or the program tells it.

  Central Processing Unit (CPU)
• The speed of the computer is measured by the speed of the CPU.
• Modern CPUs are usually rated between 2.0 and 3.0 GigaHertz (GHz), which is the number of calculations the processor can make in 1 second.
• The higher the number, the faster (better) the computer.

  Central Processing Unit (CPU)
• CPU is the "brain" of the computer
• Location where the computer stores data while it is operating.

  Memory
• Two types of memory:

  RAM (Random Access Memory)

  ROM (Read-Only Memory)
• Hardware that temporary stores information.

  RAM (Random Access Memory)
• RAM is one of the things that makes your computer run faster
• this refers to memory chips that store permanent data and instructions.

  ROM (Read Only Memory)
• The data on most ROM chips cannot be changed.
• Remember, when the computer is shut down, all data in the RAM is lost.
• The hard drive is the primary device that a computer uses to store information.
• It stores programs, data files, saves files, and organizes files.

  Hard Disk Drive
• The hard drive, magnetically stores data on stacks of rotating disks called platters.
• Data will stay stored even when the computer shuts down.

  Hard Disk Drive
• Hard disk drive is the computer's filing cabinet
• A peripheral device is any piece of hardware attached to a computer.
• A few examples of peripheral devices are:

  • Monitor
  • Keyboard
  • Mouse
  • Scanner
  • USB Flash Drive
  • Digital camera
• A scanner works by digitizing an image.
• A device that can read text or illustrations printed on paper and translate the information into a form the computer can use.

  Scanner
• There are different types of scanners:

  Flatbed

  Sheet feeder

  Handheld

  Card scanners
• USB Flash Drive can be used to copy and store data from computer hard drives.
• They were developed as an alternative to the floppy disk (3.5 diskette) that was common before

  USB Flash Drive
• Today, the USB Flash Drive is a preferred method of both permanent and temporary data storages.
• Stores images digitally rather than recording them on film.

  Digital Camera
• It is downloaded to a computer system.

  Digital Camera
• Digital photos are limited by amount of memory in the camera, the optical resolution of the digitizing mechanism, and by the resolution of the final output device (printer, monitor, etc.).
• Advantage of making photos inexpensive and fast because there is no film processing.

  Digital Camera
• All the components of a computer are interdependent to each other
• Each component is dependent on another, they cannot function as a single component.

  Interdependence
• Every component must be connected to the motherboard which supports all the components and passes information from one component to the other.

  Interdependence
• It is a presentation software that allows you to create dynamic slide presentations.

  PowerPoint 2013
• Slideshows can include animation, narration, images, videos, and much more.