Q.Suppose there is a computer with RAM but no secondary storage. Can we install a software on that computer?

No, software cannot be installed on a computer that has only RAM and no secondary storage.

Software installation is the process of copying program files, libraries, and configuration data from an installation source to a permanent storage location on a computer. This makes the software available for use whenever the computer is powered on.

• RAM (Random Access Memory) is a type of volatile memory. This means that any data stored in RAM is lost as soon as the computer is turned off or loses power. While a program can be loaded into RAM and executed from there, it cannot be permanently stored in RAM.
• Secondary storage devices (like Hard Disk Drives, Solid State Drives, or even persistent flash memory) are non-volatile. They retain data even when the computer is powered off. These devices are essential for storing the operating system, applications, and user data permanently. …

To understand why software cannot be installed on a computer with only RAM, we first need to clarify the fundamental roles of RAM (Random Access Memory) and secondary storage in a computer system, and what "installing software" truly entails.

The Role of RAM (Primary Memory)

RAM is the computer's primary memory. It is a volatile storage medium, meaning it requires power to maintain the stored information. When the computer is turned off, all data stored in RAM is lost. Its purpose is to provide fast, temporary storage for the CPU to access data and program instructions that are currently in use. When you open an application, its code and data are loaded from secondary storage into RAM for the CPU to execute.

The Role of Secondary Storage

Secondary storage (such as Hard Disk Drives - HDDs, Solid State Drives - SSDs, or even USB flash drives) is non-volatile. This means it retains data even when the computer is powered off. It serves as the permanent repository for the operating system, all installed applications, and user data (documents, photos, videos, etc.). When you save a file or install a program, it is written to secondary storage.

The Software Installation Process

Software installation is the process of copying the necessary program files, libraries, configuration settings, and other components from an installation medium (like a CD/DVD, USB drive, or downloaded file) to a permanent location on the computer's secondary storage. This ensures that the software is available every time the computer is started and can be launched by the user. The installation process typically involves:

1. Copying files: Placing the executable files, data files, and libraries into specific directories on the hard drive.
2. Creating entries: Registering the software with the operating system (e.g., creating shortcuts, adding entries to the system registry or application menus).
3. Setting up configurations: Storing initial settings and user preferences persistently.

Can Software Be Installed Without Secondary Storage?

Given the definitions above, the answer is no, you cannot install software in the traditional, persistent sense on a computer with only RAM and no secondary storage.

Here's why:

1. Volatility: Since RAM is volatile, any software "installed" into it would be completely erased the moment the computer loses power or is rebooted. There would be no permanent record of the software on the system.
2. Persistence Requirement: The very concept of "installation" implies making software persistently available. Without secondary storage, there is no medium to achieve this persistence.

Limited Scenarios (Not True Installation)

While true installation is impossible, there are scenarios where software can run on a system with only RAM, but these do not constitute "installation": …