Glossary of Computing Terms – Definitions and Descriptions of the Letter I

Importantance of I

I/O – Input / Output

A circuit path that enables communications between the processor and other devices.

I/O Port

An I/O Port is used to communicate to and from devices, such as a printer, disk, or keyboard. I/O ports can be anything from the plugs on the back of your computer to the ones on your motherboard – anything that another device plugs into.

IDE – Integrated Drive Electronics

Specifically refers to a hard disk with the disk controller integrated into it. Also refers to the ATA interface. IDE drives are characterized by a wide ribbon cable connecting the drive to the motherboard. Many also feature complex jumper settings for determining master/slave primary/secondary settings.

IEEE – Institute of Electrical and Electronics Engineers

A non-profit professional organization with 365,000 members in 150 countries, dedicated to the advancement of technology related to electricity and electrical components. IEEE forms groups for the establishment of electronic technology standards, like the 802 standards for inter-networking.

Inkjet Printer

A printing technology that utilizes print nozzles that spray ink onto the page. Not as fast or clean as a laser printer, but much less expensive. Ink typically comes in sets of two or four, and each set is given number designations to determine printer compatibility.

Input

Anything that is entered into the computer either through peripheral devices like a keyboard, mouse, or microphone. May also refer to any line from one component or device to another for the purpose of transmitting data, such as the input to the CPU from the Memory. Often coupled with the word "output" to indicate the line is bi-directional.

Internal Device

Any device installed inside a computer case or chassis.

Internet

When capitalized (i.e. The Internet) refers to the world wide web’s system of inter-networked computers and servers that make up a tangible mass of data, that can be accessed from any endpoint. When not capitalized, it simply refers to a network consisting of two independent networks connected together, usually through a router.

IRQ – Interrupt Request

A dedicated channel between main components in a computer used to tell the CPU to stop working and receive more data. IRQs can be shared by multiple devices though that sometimes causes IRQ conflicts which can crash the system.

This post is part of the series: Computer and Network Hardware Glossary of Common Terms

Complete glossary of terms and definitions for common computer and network hardware. Learn the meanings of things relevant to your life as a computer user or professional.
  1. Glossary of Computer Hardware Terms: Numbers and Symbols
  2. Glossary of Computer Hardware Terms – The Letter A
  3. Glossary of Computer Hardware Terms – The Letter B
  4. Glossary of Computer Hardware Terms – The Letter C
  5. Glossary of Computer Hardware Terms – The Letter D
  6. Glossary of Computer Hardware Terms – The Letters E & F
  7. Glossary of Computer Hardware Terms – The Letters G & H
  8. Glossary of Computer Hardware Terms – The Letter I
  9. Glossary of Computer Hardware Terms – The Letters J, K, and L
  10. Glossary of Computer Hardware Terms – The Letter M
  11. Glossary of Computer Hardware Terms – The Letters N & O
  12. Glossary of Computer Hardware Terms – The Letter P
  13. Glossary of Computer Hardware Terms – The Letters Q & R
  14. Glossary of Computer Hardware Terms – The Letter S
  15. Glossary of Computer Hardware Terms – The Letters T & U
  16. Glossary of Computer Hardware Terms – The Letters V, W, & Z