Evolution of the cellular phone

Brief history of the cellular phone:
1973 - Martin Cooper developed a brick-like 30-ounce mobile phone (upper picture) for Motorola.

1983 - Motorola introduces the 16-ounce mobile phone that sold for $3,500.

1996 - Motorola introduced the first flip phone.

1992 - Nokia introduces its first GSM phone.

1999 - The business-friendly BlackBerry introduced.

2004 - Motorola introduced the metal-clad RAZR V3

2007 - Apple introduces the iPhone (lower picture)