Advantages and Disadvantages of Mainframe

Advantages of Mainframe :

1. Huge Memory.
2. High speed compared to volume of data.
3. High security : No virus attack so far reported in last 50-60 years.
4. Superb Virtualization.
5. Huge Data processing.

Disadvantages of Mainframe :

1. Cost of hardware : Normal persons can't afford to have their own mainframe.
2. Special Operating Systems/ Software (more cost here too).
3. Intense Human attention required.
4. Intense Space Occupied.
5. More Resource consumption.