Patent ID: 8384565

Claim:
An operation system comprising: a first operating device including a first housing taking a long shape and having a thickness capable of being held by a hand, a first operating portion provided on a top surface of said first housing, said first operating portion being provided at a position that said first operating portion can be operated by a thumb of said hand, a second operating portion provided on a bottom surface of said first housing, said second operating portion being provided at a position that said second operating portion can be operated by an index finger of the hand in a state where the thumb of the hand is put on said first operating portion, a holding portion formed on said first housing, said holding portion being provided at a position that said holding portion can be held by a palm and other finger(s) of said hand in a state where said thumb and said index finger of said hand are respectively put on said first operating portion and said second operating portion, a first acceleration sensor, an imaging means provided at an end opposed to said holding portion of said first housing, and a first connector provided at an end of said holding portion of said first housing; and a second operating device including at least a second housing, a second connector connectable to said first connector, and a three-axis gyro sensor, wherein an operation is performed by connecting said second operating device to said first operating device, wherein said second operating device further includes a third connector, further comprising a third operating device including a fourth connector connectable with said third connector, a third housing, a second acceleration sensor, and a stick capable of inputting a direction, wherein an operation is performed by connecting said third operating device to said second operating device.