for time management [2]
personal digital assistant 
Small pocket computer that stores in memory and manages a variety of information such as addresses, telephone numbers and appointments.
numeric keypad 
Keys corresponding to numbers, mathematical operators and functions that are placed in a specific order to speed up numeric data entry.
alphabetical keypad 
Keys corresponding to letters, symbols and functions used to generate characters or control operations.
display 
Liquid crystal display screen on which graphics or text data are displayed.
time clock 
Device used to print the arrival and departure times of employees on time cards.
time card 
Card on which an employee’s arrival and departure times are listed so that worked time can be precisely calculated.
display 
Liquid crystal display showing a variety of information (including date, hour and settings).