Home/Small office level router can handle about 10-15 computers, if you have more than that you will experience problems with connection as well as connectivity.
Connect to one of computers connected to the network after that using sharing options share the printer.
It is not safe if you don't secure your wifi network. Anyone near you such as your neighbor can share the network and possibly steal all your personal info.
Then they would be connected, simple as that. They would be able to have close to the same IP Addresses. They would also be able to transfer documents through the network to share with other computers.
There are some smartphones that do as a WiFi hotspot. However, this will use your data very fast. It is better to have a separate WiFi network for home computers.
You can use bluetooth, a simple wired connection, or wifi to connect your computers to a network.
A network that can transmit data wirelessly is called WiFi. WiFi uses radio waves to transmit data between computers and across networks. There are various different WiFi types, namely A, G, and N.
A 4-port WiFi router is just a router that has four WIRED ethernet ports in addition to its WIRELESS 802.11 interface. This would allow you to share a single WIRED internet connection between 4 computers using ethernet cables, in addition to many other computers using the WiFi interface and no cables.
Yes. but both computers need wifi and the main one (the host) needs to be connected using another adapter (a cable for example) otherwise it won't work. Then you need to share the internet connection to the other computer by using the network and sharing centre.
If your printer is attached directly to your computer, you should share it (the way you do it depends of your operating system). If your printer is connected directly to your network (WiFi or Ethernet) it should be properly configured.
Commonly collections of interconnected computers and devices which can communicate and transfer information are referred to as networks. The first computer networks were developed to share data between remotely connected locations and users. See articles on ARPA net for more information in this field. Local Area Networks (LAN) can consist of just two computers which are connected in some form, often using a direct connection or via a network device (See Switches and Hubs)
What WiFi network are you
Use the same iTunes account on both computers. If not, you can use home sharing when connected to the same WiFi network to transfer the apps and data.