Other Keyboarding Terms
A Toggle Key is a key on the keyboard that toggles between two modes – like a switch that has two positions, ON and OFF. The most common is the CAPS LOCK key which causes all letters to appear as capitals when it is activated. Other common toggle keys include NUM LOCK (alternates between the numeric keypad used for numeric entry and using it for cursor movement) and SCROLL LOCK (When the scroll lock mode was on, the arrow keys would scroll the contents of a text window instead of moving the cursor, which is not a common problem with modern interfaces). In Excel when Scroll Lock is on, the selection doesn’t move.
Random access memory (usually known by its acronym, RAM) is a type of data store used in computers that allows the stored data to be accessed in any order — that is, at random, not just in sequence. In contrast, other types of memory devices (such as magnetic tapes, disks, and drums) can access data on the storage medium only in a predetermined order due to constraints in their mechanical design.
Generally, RAM in a computer is considered main memory or primary storage: the working area used for loading, displaying and manipulating applications and data.
Correcting Errors
There are three basic ways to correct keying errors (errors you make while typing):
1. Backspace - deletes characters as you backspace over them. When you backspace over a character on the screen, the character is deleted.
2. Overtype - replaces text letter by letter at the insertion point position. This function allows you to replace, or type over, existing text. To use Overtype, press the Insert key. The Overtype mode stays in effect until you press the Insert Key (a toggle key) again. You press the Insert key to turn it on and off.
3. Delete - deletes characters at the insertion point position. Press the Delete key to erase the character immediately right of the insertion point position.
TEST: October 18, 2007 (on Ergonomics, Home Row Keys, Ergonomic Tips and Techniques -Lessons 1 - 10, Computer Concepts notes).
Random access memory (usually known by its acronym, RAM) is a type of data store used in computers that allows the stored data to be accessed in any order — that is, at random, not just in sequence. In contrast, other types of memory devices (such as magnetic tapes, disks, and drums) can access data on the storage medium only in a predetermined order due to constraints in their mechanical design.
Generally, RAM in a computer is considered main memory or primary storage: the working area used for loading, displaying and manipulating applications and data.
Correcting Errors
There are three basic ways to correct keying errors (errors you make while typing):
1. Backspace - deletes characters as you backspace over them. When you backspace over a character on the screen, the character is deleted.
2. Overtype - replaces text letter by letter at the insertion point position. This function allows you to replace, or type over, existing text. To use Overtype, press the Insert key. The Overtype mode stays in effect until you press the Insert Key (a toggle key) again. You press the Insert key to turn it on and off.
3. Delete - deletes characters at the insertion point position. Press the Delete key to erase the character immediately right of the insertion point position.
TEST: October 18, 2007 (on Ergonomics, Home Row Keys, Ergonomic Tips and Techniques -Lessons 1 - 10, Computer Concepts notes).
posted by Karol B. Feld at
9:17 AM
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