a control signal, used with synchronous digital circuits, configured to oscillate between a high state and a low state at a particular rate or frequency, measured in clock cycles, for a communication interface. Common clock signals operate such that the signal forms a square wave with a 50% duty cycle. Electronic components rely on a clock signal operating at a constant, fixed frequency. Circuits using a clock signal for synchronization may become active at either the rising edge, falling edge, or, in the case of double data rate, both in the rising and in the falling edges of the clock cycle. (Search 'clock signal' on Wikipedia.com Nov. 11, 2019. Modified. Accessed Feb. 20, 2020.) … more a control signal, used with synchronous digital circuits, configured to oscillate between a high state and a low state at a particular rate or frequency, measured in clock cycles, for a communication interface. Common clock signals operate such that the signal forms a square wave with a 50% duty cycle. Electronic components rely on a clock signal operating at a constant, fixed frequency. Circuits using a clock signal for synchronization may become active at either the rising edge, falling edge, or, in the case of double data rate, both in the rising and in the falling edges of the clock cycle. (Search 'clock signal' on Wikipedia.com Nov. 11, 2019. Modified. Accessed Feb. 20, 2020.)

"Storage command" refers to any command relating to a storage operation. Examples of storage commands include, but are not limited to, read commands, write commands, maintenance commands, configuration command, administration command, diagnostic commands, test mode commands, countermeasure command, and any other command a storage controller may receive from a host or issue to another component, device, or system. In general, a storage command is a command issued to a storage or memory device from a host or master or other component or device. A storage command typically initiates one or more storage operations. … more "Storage command" refers to any command relating to a storage operation. Examples of storage commands include, but are not limited to, read commands, write commands, maintenance commands, configuration command, administration command, diagnostic commands, test mode commands, countermeasure command, and any other command a storage controller may receive from a host or issue to another component, device, or system. In general, a storage command is a command issued to a storage or memory device from a host or master or other component or device. A storage command typically initiates one or more storage operations.

"Logical block address" refers to a value used in a block storage device to associate each of n logical blocks available for user data storage across the storage media with a logical address. In certain block storage devices, the logical block addresses (LBAs) may range from 0 to n per volume or partition. In block storage devices, each LBA maps directly to a particular data block, and each data block maps to a particular set of physical sectors, or physical data block addresses (physical block address) on the physical storage media. … more "Logical block address" refers to a value used in a block storage device to associate each of n logical blocks available for user data storage across the storage media with a logical address. In certain block storage devices, the logical block addresses (LBAs) may range from 0 to n per volume or partition. In block storage devices, each LBA maps directly to a particular data block, and each data block maps to a particular set of physical sectors, or physical data block addresses (physical block address) on the physical storage media.