What Was the First PC-Based Operating System Called

question 19

Multiple Choice

What was the first PC-based operating system called?

• A) Microsoft Disk Operating System (MS-DOS)
• B) UNIX
• C) Linux
• D) Control Program for Microcomputers (CP/M)

---

Definitions:

Malware

Malicious software designed to harm, disrupt, or unauthorizedly access a computer system, network, or device.

Trojan

A type of malware designed to appear harmless or useful to trick users into installing it, which then allows unauthorized access or damage.

Credit Card Numbers

A series of numbers embossed or printed on a credit card that uniquely identifies the card issuer and the cardholder account.

Landfill

A disposal site for waste material by burial and is the oldest form of waste treatment.