Ict Revision cards

JPEG is a compressed bitmap image

Bitmap images degrade in quality if size is increased

Bitmap images' pixels can be edited

Bitmap images have a wide range of colours

Vector images' size can be increased without decreasing in quality

Vector images are ideal for websites as they load faster

Vector images arent as detailed as bitmap images

Data is raw or unprocessed information

Information is processed data that has been given meaning

All units of storage are:

Bits, nibbles, bytes, kilobytes, megabytes, gigabytes and terabytes

1024 bytes= 1kilobyte

1024 kilobytes= 1 megabyte

1024 megabytes=1 gigabytes

1024 gigabytes= 1 terabyte

Numeric:Integer numbers which can be positive or negative which has no decimal or fractional parts.

Data/Time: This determines the way that the date or time appears when it is displayed or printed

Character String: A character is a single letter or number that is represented by codes from a character set used by the computer.