It depends on the camera. A lot of new digital cameras have about 16 megabytes of inbuilt memory, which can only hold about 5 pictures, so it is normally used just as a backup. A camcorder, however, usually has about 40 gigabytes of inbuilt memory.
Most of the new digital cameras use SD card for image storage
Digital Camera Cards are removable memory storage devices used with digital cameras.
Mostly SD cards or MMC cards.
Most digital cameras have settled on the SD/SDHC storage format, though some still use xD or MemoryCard.
SD card (Secure Digital)
True
multimedia card (mmc)
Digital cameras have number of advantages over traditional film cameras. Digital cameras can display images on a screen immediately after they have been taken. Also because of the advances on memory devices it is possible to store hundreds to thousands of images on a single small device, and deleting images to free storage space. Finally, digital cameras allow integration with modern digital systems (like cell phones) and photo transfer to and from computers.
You can compare prices of digital cameras at pricegrabber.com and type in digital cameras.
The various devices that use digital media for storage (e.g. digital cameras, digital video cameras, digital voice recorders, computers, mp3 players) have gradually demanded faster and faster speed media for proper performance.The engineers that design the magnetic disks and flash memory used in digital media for storage have not only kept up with this demand but often exceeded it in anticipation of next generation devices.
computer printers, image scanners, tape drives, microphones, loudspeakers, webcams, and digital cameras
All modern digital cameras are colored digital cameras, although many do have a feature that allows you to take black and white pictures instead, if that is what you are looking for.