Hardware

Hardware

1. CD

   • Compact discs, DVDs, and Blu-ray discs are common types of optical media which can be read and recorded by such drives. ... They are also very commonly used in computers to read software and consumer media distributed on disc, and to record discs for archival and data exchange purposes.
   • This a part of optical software and storage device whic is used with a laser and runs across the disk and then the information is transferred.

2. CPU

   • CPU (pronounced as separate letters) is the abbreviation for central processing unit. Sometimes referred to simply as the central processor, but more commonly called processor, the CPU is the brains of the computer where most calculations take place.

3. Motherboard

   • A motherboard is a printed circuit board containing the principal components of a computer or other device, with connectors for other circuit boards to be slotted into.

4. GPU

   • GPU. (Graphics Processing Unit) A programmable logic chip (processor) specialized for display functions. The GPU renders images, animations and video for the computer's screen.

5. RAM

   • RAM is considered volatile memory, which means that the stored information is lost when there is no power. So, RAM is used by the central processing unit (CPU) when a computer is running to store information that it needs to be used very quickly, but it does not store any information permanently.

6. Cache

   • A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost (time or energy) to access data from the main memory. A cache is a smaller, faster memory, closer to a processor core, which stores copies of the data from frequently used main memory locations.

7. Secondary storage

   • Auxiliary memory, also known as auxiliary storage, secondary storage, secondary memory or external memory, is a non-volatile memory (does not lose stored data when the device is powered down) that is not directly accessible by the CPU, because it is not accessed via the input/output channels (it is an external device).

8. Network card

   • The NIC contains the electronic circuitry required to communicate using a wired connection (e.g., Ethernet) or a wireless connection (e.g., WiFi). A network interface card is also known as a network interface controller, network adapter, or Local Area Network (LAN) adapter.

9. Hardware

   • A hardware is a the machines, wiring, and other physical components of a computer or other electronic system.

10. Routers

    • When a data packet arrives , the router does the following ; Reads the packet destination address , looks up all the paths it has available to get to that address, checks how busy each path is at the moment,sends the packet along the least congested (fastest) path

11. Access points and ad-hoc networks

    • A wireless access point is basically the antennas on top of the router. It allows devices to connect to the router without wires. Not all routers are wireless routers.
    • Ad-hoc network creates a network between just two devices. It has no need for a router (No middle man). A Bluetooth connection is a ad-hoc network.
    • You can find access points at home or in public

12. Switches

    • A switch turns connections between machines on and off when they are needed to avoid data collisions.

13. Network interface cards

    • wired or wireless form
      • They are fitted into a PC so they can be connected to a network

14. Network Media