(via What are Computer Peripherals and Devices)
Definition :: Computer peripherals are the Devices which are connected to the computer but they are not the core computer architecture. Core Computer Architecture mainly consist of Computer Motherboard, cpu, power supply and Computer case or Cabinet or Chassis .You need memory [RAM], Harddisk and various other Peripheral devices so that your computer functions to its potential.
Computer Peripherals in other term can be defined as the devices which can be easily removed and plugged into PC system. Just as mouse you can remove it any time and change it with ease....same for keyboard... But in laptop it is difficult to remove because it is built in case
Printer is a Computer Peripheral Device your PC can function properly without printer but if you take out monitorcomputer system becomes useless.
In other terms we can say that without Computer peripherals devices PC can work properly say your PC can work without Printer or Webcam but if you unplug cpu from it's socket.Then computer Becomes Useless.
