COM
(1) In DOS systems, the name of a serial communications port. DOS supports four serial ports: COM1, COM2, COM3, and COM4. However, most software uses system interrupts to access the serial ports, and there are only two IRQ lines reserved. This means that the four COM ports share the same two IRQ lines. Typically, COM1 and COM3 use IRQ4, while COM2 and COM4 use IRQ3. So in general, if you have two devices, one of which is attached to COM1 and the other to COM3, you cannot use them simultaneously.
Also see the list of IRQ numbers in the Quick Reference section of Webopedia.
(2) Abbreviation of Component Object Model.
COM |
-
1
enterprise application
An enterprise application is the term used to describe applications -- or software -- that a business would use to assist the organization in...
-
2
open source
Generically, open source refers to a program in which the source code is available to the general public for use and/or modification from its...
-
-
3
CPU - Central Processing Unit
Definition: CPU is the abbreviation for central processing unit. The CPU is the brains of the computer where most calculations take place.
-
4
mobile operating system
An operating system for mobile devices.
-
5
Facebook
The name of a social networking site (SNS) that connects people with friends and others who work, study and live around them.
-
6
ERP - Enterprise Resource Planning
Short for enterprise resource planning, ERP is business management software that allows an organization to use a system of integrated applications...
-
7
RSA Secure ID
RSA SecurID ( “SecurID”) is a two-factor authentication technology that is used to protect network resources.
-
8
ecommerce remarketing
In email and online marketing, remarketing or ecommerce remarketing refers to the techniques, strategies and often the automated email...
-
9
Wi-Fi
A popular wireless networking technology that provides high-speed Internet and network connections.
-
10
RAM
Pronounced ramm, acronym for random access memory, a type of computer memory that can be accessed randomly; that is, any byte of memory can be...
-
11
biometrics
The study of measurable biological characteristics. In computer security, biometrics refers to authentication techniques that rely on physical...
Connect with Webopedia
-
-
Cloud Computing White Papers and Resources for Small Businesses
Keeping track of cloud computing trends, research and statistics gives small businesses knowledge and a solid foundation to get the most value...
