Keyboard
is the set of typewriter-like keys that enables you to enter data into a
computer or other devices. Computer keyboards are similar to electric
typewriter but contain additional typing keys.
is the set of typewriter-like keys that enables you to enter data into a
computer or other devices. Computer keyboards are similar to electric
typewriter but contain additional typing keys.
Standard keyboard classification
The standard
selection of keys typically found on computer keyboards can be classified as
follows:
selection of keys typically found on computer keyboards can be classified as
follows:
·
Alphanumeric keys: The standard letter and numbers
Alphanumeric keys: The standard letter and numbers
·
Punctuation keys: the comma, period, semicolon and similar keys
Punctuation keys: the comma, period, semicolon and similar keys
·
Special keys: These include the function keys, control keys, arrow keys,
cap lock keys and so on.
Special keys: These include the function keys, control keys, arrow keys,
cap lock keys and so on.
QWERTY, AZERTY, DVORAK and other keyboards
The
standard layout of letters, numbers and punctuation is known as the QWERTY keyboards
because the first six typing keys on the top row of letters spell QWERTY. This
was designed in the 1800s for mechanical typewriters. This layout was actually
designed to slow typists down to avoid jamming the keys on mechanical units.
standard layout of letters, numbers and punctuation is known as the QWERTY keyboards
because the first six typing keys on the top row of letters spell QWERTY. This
was designed in the 1800s for mechanical typewriters. This layout was actually
designed to slow typists down to avoid jamming the keys on mechanical units.
The
AZERTY keyboard is the French version of the standard QWERTY keyboard. AZERTY
keyboard differs slightly from the QWERTY keyboard. For example the Q and the W
keys have been interchanged with the A and Z keys.
AZERTY keyboard is the French version of the standard QWERTY keyboard. AZERTY
keyboard differs slightly from the QWERTY keyboard. For example the Q and the W
keys have been interchanged with the A and Z keys.
Another
well-known design is the DVORAK keyboard which has letters positioned for speed
typing. Unlike the traditional QWERTY, the DVORAK is designed so that the
middle row of keys include the most commonly used letters in the alphabet.
well-known design is the DVORAK keyboard which has letters positioned for speed
typing. Unlike the traditional QWERTY, the DVORAK is designed so that the
middle row of keys include the most commonly used letters in the alphabet.
There
are no standard computer keyboards, although many manufacturers imitate the
keyboard of the PCs. There are actually three different PC keyboards. The
original PC keyboard with 84 keys, the AT keyboard also with 84 keys and the
enhanced keyboard with 101 keys. The three differs somewhat in the placement of
function keys, control keys, the return key and the shift keys.
are no standard computer keyboards, although many manufacturers imitate the
keyboard of the PCs. There are actually three different PC keyboards. The
original PC keyboard with 84 keys, the AT keyboard also with 84 keys and the
enhanced keyboard with 101 keys. The three differs somewhat in the placement of
function keys, control keys, the return key and the shift keys.
In
addition to these keys, keyboards usually contain the following keys: page up,
page down, home, end, insert, pause, num lock, scroll lock, break, caps lock,
print screen.
addition to these keys, keyboards usually contain the following keys: page up,
page down, home, end, insert, pause, num lock, scroll lock, break, caps lock,
print screen.
Apple Macintosh keyboard
There
are several different types of keyboards for the Apple Macintosh. All are
called ADB keyboard because they connect to the Apple Desktop Bus (ADB). The
two main varieties of Macintosh keyboard are the standard keyboard and the
extended keyboard which features is additional special function keys.
are several different types of keyboards for the Apple Macintosh. All are
called ADB keyboard because they connect to the Apple Desktop Bus (ADB). The
two main varieties of Macintosh keyboard are the standard keyboard and the
extended keyboard which features is additional special function keys.
