Introduction to Information Technology

Study Notes

Encompasses the use of computer systems, storage, networking, and other devices for creating, processing, storing, securing, and exchanging electronic data.
Focuses on information processing, covering collection, processing, and sharing methods and tools.

Refers to the ability to find, evaluate, and compose clear information using various digital platforms, also known as Computer Literacy.
Individuals must continuously adapt to technological advancements to remain computer literate.

Integral part of daily life, enhancing understanding of hardware and software functionalities.
Essential computer skills applicable in diverse settings: home, work, school, and leisure.
Knowing how to use computers fosters self-sufficiency in research, communication, and time management.

Tiny embedded computers are commonplace in devices like alarm clocks, home appliances, and entertainment systems.
Modern cars depend on embedded computer systems for efficient performance.
Approximately 10 million people work remotely due to PCs and networking technologies.
Social media usage for communication outpaces traditional mail and telephone use significantly.
Daily tasks such as banking and grocery shopping are increasingly reliant on computer technologies.

Demand for digital literacy has surged in a technology-driven world to keep skills modernized and relevant.
Expanding knowledge is crucial to navigating unfamiliar situations and adapting in a changing work landscape.

Peter Norton defines a computer as an electronic device that processes data according to pre-set instructions, converting data into useful information.
Gary Shelly describes it as an electronic device operating under instructions stored in its memory, capable of accepting data, processing it, and storing results.
A computer can automatically execute a sequence of calculations or operations on data once programmed.

Computers can be categorized based on size, capacity, data handling, operating system capabilities, microprocessors, and user number.
Focus in this module is on classifying computers by size and capacity.

Historically used by large companies prior to cloud computing for substantial computing power requirements.
Supercomputers possess exceptionally high performance capabilities, suited for complex tasks.