Security Cameras Systems

I need to set up a 4 camera system at the workplace. i want it connected to the computer system at work and be able to view it at home as well. what is involved in this and how much is it going to cost?

We have a security camera system that hooks up to our TV — we want to hook it up to our computer system. It has male ends of RED & YELLOW for audio and video (male) — what do we need to plug it into the computer? Thanks!

I would like to be able to hook it up to my computer system through my wireless network. Anything affordable out there?

I’ve had the wireless set up several years, with no issues. Suddenly, I keep getting bumped off on the two wireless computers, but the hardwired computer is fine. My alarm system has trouble calling out because of interference on the line. I can “fix” the alarm problem by getting a wireless phone, but this won’t fix my sudden wireless computer issues. This only happens at home — when I go to Starbucks, the wireless works great. The computer icon says I am connected with great signal strength, but when I right-click and look at available networks, it says none are in range (but the modem lights are all working fine). When I reboot it works again. This is happening about once an hour now. Also, sometimes I can see that the signal is temporarily lost (the green waves from the computer icon turn yellow) but it resolves itself before it disconnects (just suspends what I am doing and is annoying). The laptop (closer to the moden) is worse than the desktop. All suggestions welcome!