TM 11-5895-1412-12&PREFERENCE INFORMATION (CONT’D)DIRECTORY - The table of contents for the files stored on a disk.DISK - A circular plate of magnetically-coated material used to store computerinformation.HP’s 3 l/2-inch flexible disk is enclosed in a plastic jacket.DISK DRIVE - A device that allows a computer to read data that is stored on adisk or write data on a disk.EDITING KEYS - Any keys on the keyboard that can be used for updatinginformation on the screen by deleting, clearing and inserting characters.Keys used for moving the cursor, rolling the screen and moving the displaypointer are also considered editing keys.EXECUTE (EXEC) - A command that allows the operator to indicate when input onthe keyboard is finished.FH FREQUENCY DATA - Frequency data that RT operates on during frequencyhopping; includes lockout sets and hopsets.FILE - A part of memory or a storage medium that is uniquely identified by itsfile name.A file is treated by the operating system and application programsas a separate unit of information that can be manipulated independently ofother files.Files can contain data or programs or both.FILE NAME - A sequence of 1 to 8 characters used to identify a particularfile.FORMATTING - The process by which a disk is prepared to receive and storedata.Also known as “indicating”.First the disk drive checks the disk forany damaged areas in which data cannot be stored. Second, the disk drive setsup storage areas on the disk.Finally, the disk drive sets up a directory onthe disk.FREQUENCY ASSIGNMENT - A designated frequency for operation as assigned by thenet controller.FUNCTION KEYS (also called SOFT KEYS) - The eight keys labeled fl through f8on the top row of the keyboard.Functions assigned to these keys often changewhen a new screen is displayed.Function-key labels appear in the rightblocks on the screen corresponds to the position of the function keys on thekeyboard.HARDWARE - The physical parts of the computer system: the computer and theperipheral devices.HEAD - The part of the disk drive that reads data form your disk and writes data onto your disk.HOPSET - Data that determines which frequencies will be used during FH; used by all radios in a netHEWLETT-PACKARD (HP) -for net communication.Manufacturer of BGU and peripherals.1-7
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