Nursing Informatics

Input Devices

Devices used to enter data into the computer system, such as keyboard, mouse, touch screen, etc.

Output Devices

Devices used to view and hear processed data, like monitors, printers, and speakers.

Central Processing Unit (CPU)

The core component of a computer that includes the Arithmetic Logic Unit (ALU), Memory, and Control Unit.

Read-only memory (ROM)

Permanent storage that retains data even when the power is off, like start-up instructions.

Random access memory (RAM)

Temporary storage for program instructions and data actively used when the computer is on.

Secondary Storage

Provides space to retain data separate from the computer's memory after it's turned off, including hard drives, floppy disks, etc.

Supercomputers

The largest and most expensive computers capable of performing billions of instructions per second.

Mainframes

Large computers processing millions of instructions per second.

Microcomputers (PCs)

Inexpensive processing power for individual users.

Networks

Combination of hardware and software enabling communication between computers, including LANs, WANs, and the Internet.

Operating System

Collection of programs managing computer activities, controlling hardware, executing software, and providing a user interface.

Cache

A smaller form of RAM that speeds up processing.

Storage Media

Includes main memory and external devices like hard drives, USB flash drives, optical media, and cloud storage.

Personal Digital Assistant (PDA)

Small handheld devices providing computing capabilities for personal or business use.

Battery Life

The duration a mobile device can operate on a single charge, influenced by hardware and software components.