Desktop computers are also known as personal computers. These computers are widely used for various purposes, including work, home, and personal use. Let's explore each of these categories in detail:

1. Workstation:
Desktop computers are commonly used as workstations in offices, businesses, and other professional environments. They offer high processing power, storage capacity, and multi-tasking capabilities, making them suitable for handling complex tasks and running resource-intensive software applications. Workstations are typically connected to a local area network (LAN) to facilitate data sharing and collaboration among multiple users.

2. Home:
Desktop computers are also popularly used in homes for various purposes. They serve as a central hub for managing household tasks, such as budgeting, online shopping, entertainment, and communication. Home desktops are often equipped with multimedia features, including high-quality audio and video capabilities, to enhance the user's entertainment experience. They can also be connected to peripherals like printers, scanners, and speakers.

3. Personal:
The term "personal computer" refers to desktop computers that are used for personal tasks and activities. These computers are primarily owned and used by individuals for personal productivity, browsing the internet, social media, gaming, and other personal interests. Personal desktops are highly customizable, allowing users to choose their preferred hardware specifications, software applications, and operating systems.

4. All the above:
The correct answer to the given question is option 'C' (personal). However, it is worth noting that desktop computers can be categorized as all of the above options. They can serve as workstations in professional settings, be used for various tasks at home, and cater to personal computing needs. The versatility and flexibility of desktop computers make them suitable for a wide range of applications and users.

In conclusion, desktop computers are commonly referred to as personal computers due to their widespread use in work, home, and personal settings. These computers provide the necessary tools and capabilities for different tasks and user requirements.