©G Dear 2010 – Not to be sold/Free to use Applied Mathematic (Preliminary General 1) Digital Downloads and File Storage Prefixes Stage 6 - Year 11 Press Ctrl-A ©G Dear 2010 – Not to be sold/Free to use

Prefixes used with Storage & Downloads Many numbers with computers are too long to write down. Kilo = 1,000 Three zeros = 103 This computer has 1 kilobyte of RAM. Symbol = k End of Slide

Prefixes used with Storage & Downloads Many numbers with computers are too long to write down. Mega = 1,000,000 Six zeros = 106 A mega drive Symbol = M End of Slide

Prefixes used with Storage & Downloads Many numbers with computers are too long to write down. Giga = 1,000,000,000 Nine zeros = 109 1 gigabyte memory card Symbol = G End of Slide

Prefixes used with Storage & Downloads Many numbers with computers are too long to write down. Tera = 1,000,000,000,000 Twelve zeros = 1012 1.5 terabyte drive Symbol = T End of Slide

Prefixes used with Storage & Downloads Many numbers with computers are too long to write down. Peta = 1,000,000,000,000,000 Fifteen zeros = 1015 Some users have many drives to create a petabyte storage drive. Symbol = P End of Slide

Prefixes used with Storage & Downloads Unit Traditionally bytes Conventionally bytes 1 kilobyte 210 = 1,024 1,000 1 megabyte 220 = 1,048,576 1,000,000 1 gigabyte 1,073,741,824 1,000,000,000 1 terabyte 1.0995116 x 1012 1 with 12 zeros 1 petabyte 1.1238991 x 1015 1 with 15 zeros End of Slide