Abstract: In a method for encrypting and decrypting a document based on a voiceprint recognition technology on an electronic device, an encryption key is generated and stored in a storage device of the electronic device. And a voiceprint is verified to determined whether the voiceprint is identical to a predefined voiceprint. if the voiceprint is identical to a predefined voiceprint, the encryption key is obtained from the storage device to encrypt a document. When the encrypted document is decrypted, a decryption key is generated to decrypt the encrypted document.

Abstract: A testing device for testing resistance value includes a base, an operation pole, a sliding device, and a housing for enclosing the base. The base defines a hook receiving slot. A plurality of contact tabs is formed inside the hook receiving slot for contacting pins of the expansion card. A plurality of conductive tabs is formed on the base for being electrically coupled to the contact tabs. A ground terminal is electrically coupled to one of the conductive tabs coupling to the ground pins. The sliding device includes a resilient tab. The resilient tab includes a first end contacting one of the conductive tabs and a second end. The housing includes a connection portion for contacting the second end of the resilient tab and a test terminal electrically coupled to the connection portion.

Abstract: A socket for a central processing unit (CPU) includes a housing, a bottom base, a slide base, and a number of resilient members. The bottom base is received in and fastened to a lower portion of the housing. The bottom base defines a number of accommodating holes which are slanted. A number of slanting pins extends up from a top of the bottom base. The slide base is slidably received in the housing and above the bottom base. The slide base defines a number of through holes, which are also slanted, for receiving the pins. The slide base includes a number of slanting protrusions for engaging in the accommodating holes. A receiving hole is defined in a bottom surface of each protrusion. Each resilient member is received in the receiving hole and accommodating hole.

Abstract: A socket for a central processing unit (CPU) includes a housing, a bottom base, a slide base, and a number of resilient members. The bottom base is received in and fastened to a lower portion of the housing. The bottom base defines a number of accommodating holes which are slanted. A number of slanting pins extends up from a top of the bottom base. The slide base is slidably received in the housing and above the bottom base. The slide base defines a number of through holes, which are also slanted, for receiving the pins. The slide base includes a number of slanting protrusions for engaging in the accommodating holes. A receiving hole is defined in a bottom surface of each protrusion. Each resilient member is received in the receiving hole and accommodating hole.