The History and Origins of Our PC Computer Keyboards

The keyboard is among the mostThe Enter key was L-shaped and the Backsplash
underappreciated and taken for grantedkey, which now occupied the spot which used to
component of the Personal Computer (PC) thatbe the left half of the Backspace key. Was
we use everyday.reduced in size to the width of a single "alpha"
We are all creatures of habit. We generally usekey.
certain keys and not others in certain way.At some point when market forces pushed IBM
What are the origins and history of the nowto upgrade the venerable AT computer, it
current accepted PC computer keyboard?introduced the Enhanced model keyboard which
Interestingly enough the standard keyboard layoutwas compatible with the original AT model, but
did not originate in one fell swoop. It developedhad a drastically different layout. The ESC key
through three separate IBM keyboard projectsand the 12 function keys were now along the top,
and often involved mistakes and pitfalls along itsthe number pad was moved to the right. And a
evolutionary path.new cursor pad was placed between the alpha
Most keyboard setups have their direct origin inkeys a number pad. The cursor pad ( which was
the original IBM keyboard - "The IBM Enhancedactually split into two sets of keys ) consisted of
101 Key Keyboard "which IBM set as thefour arrow keys in an inverted T at the bottom
standard in the year of 1987. The Enhancedand a separate bank of 6 keys at the top: Ins (
Keyboard was not the first but rather IBM's thirdInsert) , Del (Delete) , Home and End, and PgUp
keyboard standard for PCs.(Page up_ and PgDn ( Page down) .
What were these previous frameworks of IBMWhat happened is that the computer users of the
keyboard models?time disastrously started to press the Delete key
First the original IBM PC and XT keyboards hadwhen they meant end. There was virtually little
83 keys. There were 10 function keys on the leftmemory, by today's standards' hence no
side of the keyboard, a combined number padadvanced features of rescue that we take for
and a cursor pad placed on the right hand side.granted today. A computer user who may have
The now called Control (Ctrl), Left Shift, and Altspent hours typing a major endeavor such as
keys were arranged in a line next to the functionmaster's thesis may have seen his hard work
keys.disappear into never never land.
The Escape (Esc) as we know it was to the leftIt did not take too long for the complaints to
of the numbers in the top row. To the right ofarrive at IBM head office to rectify the situation.
the Right Shift Key, an unshifted asterisk key"Leave well enough alone "was the refrain. And
allowed the user to type the now common *.*the Backspace key returned to its original double
without acrobatics. Between the tiny Left Shiftwidth. The backslash key now occupied a single
key and the Zee key was a Backslash / Verticalrow. Caps lock migrated to the old side of the
key. The Enter key was narrow and verticallyCtrl key, and twin Ctrl and Alt keys flanked the
aligned and very easy to miss by most early PCspacebar.
users.The Del key though remained in its now current
The design of this original IBM keyboard standardplace although in some keyboards it is now double
was a mixture of sensible and absurd keyboardsized.
layout decisions so much so that the admiredLike it or not this layout has become the standard
components overshadowed the less thought outby which we live with our computer enhanced
shortcomings and thus here we are today.lives.
IBM's next design was the original AT keyboard.The keyboard is among the most
This was somehow made incompatible with theunderappreciated and taken for granted
earlier PC/XT design but a calculating user couldcomponent in our every day computer lives. We
reprogram in essence the newer keyboard toseldom stop to think why certain keys are laid
work.out in the given way. Like it or not we owe a
The AT keyboard again had the then accepteddebt to thoughtfulness and thoroughness of the
ten function keys on the left, but exiled the Escoriginal IBM PC project engineers.
and the unshifted asterisk to the number pad.