It is very possible to have two computers and one monitor. You will need a Belkin switch. The Belkin switch connects the computers together as well as the monitor to give you more power. But the risk of having this can give you chance of crashes, mostly if the computer's aren't very good.
A KVM switch is used when you have multiple computers. You use it to hook up more than one harddrive to one keyboard and mouse. It can also be used to connect one computer to multiple keyboards and mice.
Thinkcentre M55, Lenovo has a good support system
A USB Keyboard Video Mouse (KVM) switch can turn chaos into organization. Without a KVM, multiple computers that are adjacent to each other would each need their own keyboard, mouse, and monitor to be fully operated by a person. With a USB KVM switch, one keyboard, mouse, and monitor is plugged into the switch which in turn is plugged into to each of the computers. When control over a specific machine in the group is needed, a person can sit at the same keyboard while using the KVM to switch that keyboard's input to the desired computer.
A KVM (Keyboard, Video, Mouse) switch is a junction that allows you to use the same keyboard, video, and mouse on two or more computers. You plug the devices into the switch, and run the cables from it into each computer. Then you can switch between what computer you want to use with either a small switch, or certain key combinations. Its best used in large organizations where there are hundreds of computers to work with. It gives the network administrators the ability to efficiently and securely manage their information.
A KVM switch is short for "keyboard, video and mouse". It is a hardware device that allows a user to control multiple computers from one or more keyboards, video monitors and mouse. .
A KVM switch, or keyboard, video, and mouse switch, is used to connect multiple computers to the same keyboard, video display, and mouse. This setup is often used in situations where one needs to use multiple computers or operating systems at the same time. For example, Network administrators use this method to monitor and control multiple servers simultaneously.
A KVM Switch is used to control 2 or more computers from one set of Keyboard, Video, and Mouse (thus KVM) setups. You can switch between computers quickly with a push of a button. Why would you want to do this? For starters, you could share keyboard, video, and mouse between a home computer and a work laptop that you brought home.
The Apple wireless keyboard and mouse are not supplied with a standard Mac. They can be purchased separately. With the standard iMac wired keyboard and mouse the mouse can plug into the USB socket on the keyboard and they can both be tucked away under the screen to give you some desk space.
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To hook up two computers to one modem, you get a router.
Use a KVM (Keyboard/Video/Mouse) switch. There are tons of choices for these, just type KVM Switch into a search engine.
A KVM switch - "Keyboard, Video & Mouse" switch - allows you to use one monitor, one keyboard and one mouse to control several PCs. This is handy where you have several computers, and you need to be able to use any of them - but only one at a time. it's very common in a server room environment, where you have a rack of several servers, but not much workspace for a bunch of monitors and keyboards.