Computer Info System Blog

How to protect your device

VPN

Hakers and Phishers could get your private information, truough several ways such as spam emails that could inffect your computer with viruses or throgh web pages that you visit, is important to protect your device and information, one way is using a VPN, a virtual private network extends a private network across a public network and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network.

Data Link Layer of Networking

Data Link Layer is second layer of OSI Layered Model. This layer is one of the most complicated layers and has complex functionalities and liabilities. Data link layer hides the details of underlying hardware and represents itself to upper layer as the medium to communicate. Data link layer works between two hosts which are directly connected in some sense. This direct connection could be point to point or broadcast. Systems on broadcast network are said to be on same link. The work of data link layer tends to get more complex when it is dealing with multiple hosts on single collision domain.

Best Laptops for Video Editing


Dell XPS 15
    • Windows 11
      15.6" Display
      8GB RAM
      256GB SSD
      $1149.99

    • Macbook Pro 15(2021)
    • Apple M1
      14" Display
      16GB RAM
      512GB SSD
      $1999.00

    • How does the internet work?

    Computer Operation System Components

    Smart fridge

    • Cpu keeps the temperature at certain level
      input id the food and products inserted on it
      outputs ice and water
      screen as a visusal output
      motor as a power supply

    • Refridgerators have come a long way from their invention, fist introduce as storage for food that need to be store at cold temperatures to promote their longevity, such as vegetables, meats and dairy products. the big first change was adding an ice dispensor, and automatic production od ice, the newest models now such as "Samsung's Smart Fridge" come with and integrated touch screen that lets you control the temperature, it can work as a clock, and even includes apps so the consumer could purchase their groceries.