history of OS

How many calculations per second could early digital computers handle, compared to today's supercomputers?

• Early: 500, Today: 34 billion

• Early: 5,000, Today: 34 trillion

• Early: 50,000, Today: 34 million

• Early: 500,000, Today: 34 billion

What was the primary method of processing programs in early computers, where programs were fed one at a time into the CPU?

• Real-time processing

• Batch processing

• Parallel processing

• Distributed processing

What was a significant challenge for programmers in the early days of computing?

• Lack of processing power in computers.

• Difficulty in finding enough punch cards.

• The need to write different programs for each unique machine and its devices.

• The high cost of computer hardware.

What was the memory capacity of the PDP-7 minicomputer, developed by AT&T Bell Laboratories?

• 9 megabytes

• 4000 bytes

• 9 kilobytes

• 4 gigabytes

Are you enjoying the video lesson?

• Yes

• No

Which company introduced the first system that gave Apple the idea for a graphical user interface (GUI) and mouse-based input, including icons for files and folders?

• IBM

• Microsoft

• Xerox

• AT&T Bell Laboratories