What is a Computer Network?

This is a recommends products dialog
Top Suggestions
Starting at
View All >
Language
French
English
ไทย
German
繁體中文
Country
Hi
All
Sign In / Create Account
language Selector,${0} is Selected
Join & Shop in Lenovo Pro
Register at Education Store
Pro Tier Benefits
• Save up to an extra 5% on Think everyday pricing
• Purchase up to 10 systems per order (5 more than Lenovo.com)
• Spend $10K, advance to Plus Tier with increased benefits
Plus Tier Benefits
• Save up to an extra 8% on Think everyday pricing
• Purchase up to 25 systems per order (20 more than Lenovo.com)
• Spend $50K, advance for free to Elite Tier with increased benefits
• Take advantage of flexible payment options with TruScale Device as a Service. Learn More >
Elite Tier Benefits
• Save up to an extra 10% on Think everyday pricing
• Purchase up to 50 systems per order (45 more than Lenovo.com)
• Take advantage of flexible payment options with TruScale Device as a Service. Learn More >
Partner Benefits
• Access to Lenovo's full product portfolio
• Configure and Purchase at prices better than Lenovo.com
View All Details >
more to reach
PRO Plus
PRO Elite
Congratulations, you have reached Elite Status!
Pro for Business
Delete iconRemove iconAdd iconReload icon
TEMPORARILY UNAVAILABLE
DISCONTINUED
Temporary Unavailable
Cooming Soon!
. Additional units will be charged at the non-eCoupon price. Purchase additional now
We're sorry, the maximum quantity you are able to buy at this amazing eCoupon price is
Sign in or Create an Account to Save Your Cart!
Sign in or Create an Account to Join Rewards
View Cart
Your cart is empty! Don’t miss out on the latest products and savings — find your next favorite laptop, PC, or accessory today.
Remove
item(s) in cart
Some items in your cart are no longer available. Please visit cart for more details.
has been deleted
Please review your cart as items have changed.
of
Contains Add-ons
Subtotal
Proceed to Checkout
Yes
No
Popular Searches
What are you looking for today ?
Trending
Recent Searches
Hamburger Menu
Use Enter key to expand
EnglishCreated with Sketch.
EnglishFrench
  • Lenovo Pro Business Store

    Join  Lenovo Pro Business Store

    Created with Sketch.
    Lenovo Pro Business Store

    Log In / Sign Up

    Learn More

  • Accessibility
    AccessibilityAccessibility
    Accessibility
  • Contact Us
    Contact UsContact Us
    Contact Us

    Sales:

    Home:

    1-855-253-6686 Option #2

    Business:

    1-866-426-0911

    Chat Now >

    Visit Sales Support Page >


    Order Support:

    Order Lookup >

    Visit Order Support Page >

    Technical Support >

Lenovo
skip to main content
All
  • All
  • Laptops
  • Desktops
  • Workstations
  • Monitors
  • PC Accessories & Electronics
  • Tablets
  • Servers & Storage
  • Servers Accessories
  • Account
    Sign In / Create Account
    Account
    My Lenovo Account
    Keep track of your wishlist, orders, and rewards all in one place
    Sign In / Create Account
    Welcome Back!
    Access your order, subscriptions, saved carts, rewards balance, and profile
    View My Account
    Orders
    View & track your orders
    Rewards
    Earn & redeem Rewards
    Profile
    Edit name, password, and account settings
    Wishlist
    Manage a wishlist of your favorite products
    Products
    Manage your devices, accessories
    Product Registration
    Register your product and/or update your warranty dates
    Lenovo Family Hub
    Manage your family's orders all in one place
    Sign Out
  • My Lenovo Rewards
    My Lenovo RewardsMy Lenovo Rewards
    My Lenovo Rewards
  • Cart
    CartCart
    Cart
  • Products
  • Solutions
  • Services
  • Support
  • About Lenovo
  • Deals
  • Business
  • Student
  • Gaming
  • Laptops

  • Desktops

  • Workstations

  • Accessories
  • Software
  • Monitors
  • Tablets

  • Servers & Storage
  • AI
  • Deals
  • Ultimate Summer Savings! Get the tech you want at prices you'll love + Buy more, Save More Shop Now >

  • Win $1,000 in Rewards! Join or sign in to My Lenovo Rewards and spend $1,000+ for a chance to win $1,000 in rewards— Free entry also available, no extra steps needed! Terms apply. Ends 6/29 Join for Free >

  • Business Financing Available. Split payments from 4 to 52 weeks, options as low as 0% interest. See Details >

  • Shopping for a business? New Lenovo Pro members get $100 off first order of $1,000+, exclusive savings & 1:1 tech support. Learn More >

  • Build your laptop today & save big! Choose your Yoga >

Home > Glossary > What is a computer network?
Glossary Hero    
Learn More    
StarStar

Annual Sale

Lenovo Laptop SaleLenovo Laptop Sale

Laptop Deals

Desktop DealsDesktop Deals

Desktop Deals

Workstation DealsWorkstation Deals

Workstation Deals

ControllerController

Gaming PC & Accessory Deals

MouseMouse

PC Accessories & Electronics Deals

MonitorMonitor

Monitor Deals

Tablet and phoneTablet and phone

Tablets Deals

ServerServer

Server & Storage Deals

Discount tagDiscount tag

Clearance Sale


What is a computer network?

A computer network is a system of connected devices that are able to communicate with each other and share resources. It allows computers to collaborate, transfer data, and access shared information - such as files, emails, and printers - from one device to another.

How does a computer network work?

Computer networks are made up of two or more computers connected together through cables or wireless signals. These connections allow for the transmission of data between all computers on the network, allowing for efficient communication and sharing of resources.

Why is using a computer network beneficial?

Using a computer network removes the need for manual data entry – resulting in increased productivity and faster workflows. Additionally, it helps save money by providing access to resources (such as shared printers) instead of having to buy multiple pieces of equipment for each device. It also makes it easier to keep your data secure with firewalls and other security measures that can help protect you from malicious attacks.

What are the different types of computer networks?

There are several different types of computer networks: Local Area Networks (LANs), which connect computers within a small geographical area; Wide Area Networks (WANs), which connect computers across larger distances; Home Networks, which connect two or more devices within the same home; and Wireless Networks, which use radio frequencies instead of cables or wires to connect devices together.

How can I set up my own network at home?

Setting up your own network at home is relatively simple – all it requires is connecting all your devices to either an Ethernet cable or router using Wi-Fi technology, depending on what type of connection you have available. Once everything’s connected you can then manage and configure settings through the router’s web interface!

How can I improve my home network?

Improving your home network is a great way to get more out of it. First, you should make sure all your devices are connected to the same Wi-Fi router and not different networks. Also, try to use the latest routers with the greatest range and speeds available - and if possible upgrade your internet connection too. Additionally, reduce interference by keeping routers away from other electrical appliances or thick walls/floors.

What are the benefits of using a wired connection vs wireless connection?

Wired connections offer better performance and security compared to wireless connections – as data is transmitted through a physical cable instead of radio waves; this helps increase speeds and provide an overall more reliable connection. Additionally wired connections don’t suffer from problems such as interference from other devices that can slow down a wireless connection.

What is network security?

Network security is the practice of protecting computer networks against unauthorized access, misuse or destruction by malicious actors such as hackers or malware. This can include installing firewalls, setting up secure passwords on all accounts, using two-factor authentication whenever possible & monitoring for unusual traffic patterns in order to detect potential threats early on.

What is the difference between wired and wireless networks?

The main differences between wired and wireless networks is that wired networks require physical cables (such as Ethernet) while wireless ones don't; additionally wired connections are usually faster and more reliable but can be more limited in terms of coverage due to cables being required for them to work!

Why is network security so important?

Network security is important because it helps protect against malicious attacks which can cause damage to data or potentially steal confidential information – making it essential for any organization or individual who wants to keep their digital assets safe and secure!

How does network security protect against cyberattacks?

Network security helps protect against cyber-attacks by monitoring the network for suspicious activity, such as malware or unauthorized access attempts. It also makes it more difficult for attackers to gain access to the system, as they need to find a way around any security measures that have been put in place. Additionally, firewalls can help block malicious traffic and keep external threats out of your network.

What are the types of network security?

The types of network security include antivirus software, encryption protocols, firewalls and virtual private networks (VPNs). All these measures are designed to provide a layer of protection from potential cyber threats and keep your data safe from unwanted access.

Is it safe to use social networks on a networked computer?

It can be safe to use social networks on a networked computer – but you should always take caution when doing so. Ensure that your account is password protected, only use secure connections (such as HTTPS) when possible and make sure to monitor any third-party applications/websites that you may connect with. Additionally, avoid clicking on suspicious links & never share personal information over social media!

What are the different types of computer network protocols?

The different types of computer network protocols are TCP/IP (Transmission Control Protocol/Internet Protocol), IPv4/IPv6 (Internet Protocol Version 4/6), Ethernet, Wi-Fi (Wireless Fidelity), and HTTP (Hypertext Transfer Protocol). Each protocol serves a different purpose and all are necessary for networking in some form or other.

What is a firewall and how does it help?

A firewall is a system that controls incoming and outgoing network traffic by creating a barrier between trusted and untrusted networks, or between the internet and your local intranet. The purpose of a firewall is to prevent illegitimate or malicious access to the resources on your network, as well as limit any potential damage from external threats.

What are the benefits of having a home network?

Having a home network can provide many benefits such as being able to easily connect multiple devices together, sharing content with family and friends, accessing the Internet wirelessly via Wi-Fi, and having the ability to control things remotely (such as turning lights on/off). Additionally, home networks can help improve productivity levels when working remotely.

What is DHCP and how does it work?

DHCP stands for Dynamic Host Configuration Protocol which allows devices connected to a network to be automatically assigned IP addresses. It works by using a server which assigns out each address from an IP pool; these addresses are then released back into the pool once no longer in use ensuring there aren’t any conflicts.

What is network troubleshooting?

Network troubleshooting is the process of diagnosing and resolving issues related to a computer network. This could involve checking for broken cables/connections, verifying settings and configurations, testing speeds etc. – all with the aim of ensuring all computers/devices connected are able to communicate correctly with each other and access necessary resources.

Looking for a Great Deal?
Shop Lenovo.com for great deals on A+ Education PCs, Accessories, Bundles and more.
Shop Deals Now

Recommended Education Products

  • Legion 7i Gen 9 (16″ Intel) Gaming Laptop
    Starting at
    $2,429.99
    Learn More
  • ThinkPad X9 15 Aura Edition (15ʺ Intel) Laptop
    Starting at
    $2,105.10
    Learn More
  • Legion 5i Gen 9 (16″ Intel) Gaming Laptop
    Starting at
    $2,869.99
    Learn More
  • Yoga 9i 2-in-1 Aura Edition (14″ Intel) Laptop
    Starting at
    $1,736.99
    Learn More
  • IdeaPad Pro 5 (16” AMD) Laptop
    Starting at
    $1,619.99
    Learn More
  • Shop
    • Student Deals
    • K-12 Student Laptops
    • Student Accessories
    • Laptops by Major
    Education resource
    Explore
    • What is STEM?
    • Best Laptops for College
    • Student & Teacher Discounts
    • Lenovo Sustainability Programs
    Education carry case

    Stem Articles
    See All STEM Articles
    • Online STEM Education

    • STEM Career Tips & Resources

    • Women in STEM

    • STEM Educator Training

    • STEM Grants & Funding

    • STEM Education: Coding for Kids

    • STEM Education: Robotics

    • STEM Education: Biotechnology

    • STEM Education: Sustainability

    • STEM Education: AI & ML

    While every effort has been made to ensure accuracy, this glossary is provided for reference purposes only and may contain errors or inaccuracies. It serves as a general resource for understanding commonly used terms and concepts. For precise information or assistance regarding our products, we recommend visiting our dedicated support site, where our team is readily available to address any questions or concerns you may have.

    Why Lenovo?

    Go Greener with Leno...

    Lenovo is committed to Smarter Climate Action with lower energy laptops, use of sustainable materials and packaging, and available CO2 Offset Services.
    Learn More
    pastel background

    Get It Now, Pay For ...

    Lenovo has multiple financing option: the Lenovo Credit Card, installment plans, and lease-to-own financing op...
    Learn More
    pastel background

    Productivity & Peace of Mind

    Stay productive with Premium Care Plus - 24/7 priority support and coverage against accidental damage. Power through your day with our Smart Performance and extended battery solutions.
    Learn More
    pastel background

    My Lenovo Rewards

    Get up to 9% back in Rewards credit on all purchases! Join or Sign In to start earning today.
    Learn More
    pastel background

    Assistance and Suppo...

    Chat with a trained professional who can help you find the right products, place or check on an order, or setup your Education laptop.
    Contact Us
    pastel background
    Enter email to receive Lenovo marketing and promotional emails. Review our Privacy Statement for more details.
    Please enter the correct email address!
    Email address is required
    • Facebook
    • Twitter
    • Youtube
    • Pinterest
    • TikTok
    • instagram
    Select Country / Region:
    Country
    AndroidIOS

    About Lenovo

    • Our Company
    • News
    • Investors Relations
    • Compliance
    • ESG
    • Product Recycling
    • Product Security
    • Product Recalls
    • Executive Briefing Center
    • Lenovo Cares
    • Careers
    • Formula 1 Partnership

    Products & Services

    • Laptops & Ultrabooks
    • Smarter AI for You
    • Desktop Computers
    • Workstations
    • Gaming
    • Tablets & Smart Devices
    • Servers, Storage, & Networking
    • Accessories & Software
    • Services & Warranty
    • Product FAQs
    • Deals
    • Lenovo Coupons
    • Preconfigured Products

    Shop By Industry

    • Small Business Solutions
    • Large Enterprise Solutions
    • Healthcare Solutions
    • Higher Education Solutions
    • Education Discounts
    • Discount Programs

    Resources

    • Lenovo Pro for Business
    • My Lenovo Rewards
    • Lenovo Financing
    • Customer Discounts
    • Affiliate Program
    • Affinity Program
    • Employee Purchase Program
    • Lenovo Partner Hub
    • Laptop Buying Guide
    • Where to Buy
    • Glossary

    Customer Support

    • Contact Us
    • Shopping Help
    • Return Policy
    • Shipping Information
    • Track my Order
    • Register a Product
    • Replacement Parts
    • Technical Support
    • Forums
    • Provide Feedback
    © 2025 Lenovo. All rights reserved.
    PrivacySite MapTerms of UseExternal Submission PolicySales terms and conditionsAnti-Slavery and Human Trafficking Statement
    Compare  ()
    x
    Call

    Need Help? Call: 

    1-855-253-6686 Option #2

    Select Your Store

    Add items to your Lenovo Pro cart?
    We've noticed that you've entered a different store. Do you want to add these items to your cart in the Lenovo Pro Store?
    No Yes. Add in Lenovo Pro