Device controller - Revision history

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2018-12-16T00:06:29Z

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A '''device controller''' is a [[peripheral]] which is an intermediary between a computer (usually connecting to a [[bus]], although possibly the [[central processing unit|CPU]] directly) and some external device (often [[secondary storage]]).

The canonical pairing is a disk controller and a [[disk]] drive, although controllers are also found with [[magnetic tape]] drives, [[paper tape]] readers and/or punches, and numerous other kinds of devices.

Usually a single controller is able to handle multiple identical devices, thereby amortizing the controller's cost, since the external devices often include mechanical components, and are the thus slower than the all-electronic controller.

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		+	[[Category: Computer Basics]]

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	Usually a single controller is able to handle multiple identical devices, thereby amortizing the controller's cost, since the external devices often include mechanical components, and are thus slower than the all-electronic controller.		Usually a single controller is able to handle multiple identical devices, thereby amortizing the controller's cost, since the external devices often include mechanical components, and are thus slower than the all-electronic controller.

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-A '''device controller''' is a block of [[hardware]] which is an intermediary between a computer (usually connecting to its [[bus]], although possibly to the [[central processing unit|CPU]] directly) and some external [[peripheral]] device (often [[secondary storage]]).
+A '''device controller''' is a block of [[electronic]] [[hardware]] which is an intermediary between a computer (usually connecting to its [[bus]], although possibly to the [[central processing unit|CPU]] directly) and some external [[peripheral]] device (often [[secondary storage]]).
 The canonical pairing is a disk controller and a [[disk]] drive, although controllers are also found with [[magnetic tape drive]]s, [[paper tape]] readers and/or punches, and numerous other kinds of devices.
-Usually a single controller is able to handle multiple identical devices, thereby amortizing the controller's cost, since the external devices often include mechanical components, and are thus slower than the all-[[electronic]] controller.
+Usually a single controller is able to handle multiple identical devices, thereby amortizing the controller's cost, since the external devices often include mechanical components, and are thus slower than the all-electronic controller.
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@@ Line 1: / Line 1: @@
-A '''device controller''' is a [[peripheral]] which is an intermediary between a computer (usually connecting to a [[bus]], although possibly the [[central processing unit|CPU]] directly) and some external [[peripheral]] device (often [[secondary storage]]).
+A '''device controller''' is a block of [[hardware]] which is an intermediary between a computer (usually connecting to its [[bus]], although possibly to the [[central processing unit|CPU]] directly) and some external [[peripheral]] device (often [[secondary storage]]).
-The canonical pairing is a disk controller and a [[disk]] drive, although controllers are also found with [[magnetic tape]] drives, [[paper tape]] readers and/or punches, and numerous other kinds of devices.
+The canonical pairing is a disk controller and a [[disk]] drive, although controllers are also found with [[magnetic tape drive]]s, [[paper tape]] readers and/or punches, and numerous other kinds of devices.
-Usually a single controller is able to handle multiple identical devices, thereby amortizing the controller's cost, since the external devices often include mechanical components, and are the thus slower than the all-electronic controller.
+Usually a single controller is able to handle multiple identical devices, thereby amortizing the controller's cost, since the external devices often include mechanical components, and are thus slower than the all-[[electronic]] controller.
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← Older revision		Revision as of 13:43, 20 August 2018
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−	A '''device controller''' is a [[peripheral]] which is an intermediary between a computer (usually connecting to a [[bus]], although possibly the [[central processing unit\|CPU]] directly) and some external device (often [[secondary storage]]).	+	A '''device controller''' is a [[peripheral]] which is an intermediary between a computer (usually connecting to a [[bus]], although possibly the [[central processing unit\|CPU]] directly) and some external [[peripheral]] device (often [[secondary storage]]).

	The canonical pairing is a disk controller and a [[disk]] drive, although controllers are also found with [[magnetic tape]] drives, [[paper tape]] readers and/or punches, and numerous other kinds of devices.		The canonical pairing is a disk controller and a [[disk]] drive, although controllers are also found with [[magnetic tape]] drives, [[paper tape]] readers and/or punches, and numerous other kinds of devices.