You need a router, four cables in the case of wired network or four wireless cards (laptops don't need it because they have it). Plus a hardware firewall which can cost couple hundred dollars. Usually firewalls inside of routers are pretty good (in good routers) and it's not easy at all to hack it.
They require many devices that connect different computers using diverse communication services
Usually software but some hardware firewall devices are produced.
Hardware is the physical parts that are connect inside your computer. Hardware Devices are the hardware drivers installed on your hard drive.
A firewall can be either hardware or software
That sounds like a firewall.
Routers usually, if not always, include a firewall. This is the only device I know of.
Computer hardware is a set of physical devices with which we get to connect ourselves with the computer with help of softwares
One can protect their computer hardware devices by installing a firewall in order to prevent any malicious activity to be sent to ones computer. Without a firewall one runs the risk of receiving a virus through email or even by visiting certain websites.
you need a computer in the form of PCs,laptop,smart phones,tablet network server intenet connection from your local ISP a network interface card wired access points wireless access points firewall routers browsers modems operating systems softwares
Dem interwebz things that do clever 'tings
Specific hardware is often required to operate the software, such as a joystick, handheld device, or console.
Hardware devices are devices like pen drives, DVD, CD ect!!