6. HOW COMPUTERS WORK? Input Devices Keyboard Mouse Joystick Gra phic tablet …… Central Processing Unit (CPU) Memory (RAM) Output Devices Monit o r Printer ….. Storage Devices Harddisk, Disk Drive , CD , DVD, …..
9. Unit of Data Unit of Data = byte ( A byte is the unit most computers use to represent a character such as a letter, number, or typographic symbol ) 1024 byte = 1 K B (K ilobyte ) 1000 KB = 1 MB (M egabyte ) 1000 MB = 1GB (G igabyte )