The kilobyte is the measurement unit for    digital information , which internationally   is symbolized as KB . According to   International System of Units  (SI)  , Kilo-  is the prefix means 1000 so it is commonly considered as 1 kilobyte = 1000 bytes, but in Information technology’s areas in reference to digital memory capacity, 1 kilobyte = 1024 bytes   . It was once common to find Hard disks, Magnetic storage media, Processor cache size , SD memory chip , an iPhone memory chip capacity and  RAM  capacities measured in terms of kilobytes, but the larger  megabyte  has now become a more prominent capacity. Kilobytes are often used to measure the small  files size .  For example, thumbnail images use only 5 to 10 KB of space. A larger JPEG  image of 900x600 pixel can take up to 250 KB of space. Text files often are less than 1KB. While some files contain less than 4 KB data, as in modern f...