40:
97:
273:. Depending on the modality of the application, various functions can be mapped onto it. It can also bring up multiple functions listed on a pop-up expanded menu. Usually the prompt text on the display for the softkey is not allowed to be truncated or omitted with ellipsis. The softkey itself is usually not printed with a functional icon or text, but is often marked with a dot or short bar.
352:
180:
239:
As of 2008, HP calculators use this arrangement to implement hierarchical trees of functions. They are rarely found on PC applications, even though the first IBM PC BASIC labeled function key use at the bottom of the screen, and there were 12 function keys, patterned after use on IBM terminals.
171:, where the label is directly pushable. The increased prevalence of touchscreens in the 2000s has led to a decrease in screen-labeled function keys. However, screen-labeled function keys are inexpensive and robust, and provide tactile feedback.
159:. Screen-label function keys date to aviation applications in the late 1960s. Kiosk applications were particularly common in the 1990s and 2000s. Screen-labeled function keys are found in automotive and aviation applications such as in the
128:, where the button invokes a function described by the text at that moment shown adjacent to the button on the display. Soft keys are also found away from the display device, for example on the sides of
120:
is a button flexibly programmable to invoke any of a number of functions rather than being associated with a single fixed function or a fixed set of functions. A softkey often takes the form of a
207:
desktop computer was the first calculator with two rows of 4 keys, over which a paper overlay would be placed. These were later adapted to terminals. Programmers found that the
340:
Lindholm, Christian. Keinonen, Turkka, Kiljander, Harri (2003) “Mobile usability : how Nokia changed the face of the mobile phone” New York : McGraw-Hill
377:
321:
231:
business computers which placed them at the bottom. By arranging functions in hierarchical trees, many functions can be implemented with only 8 keys.
265:
A typical mobile phone with soft keys has them located beneath the bottom left and bottom right of the display; some, especially those made by
215:
terminal, the keys were re-arranged to correspond with 2 pairs of 4 labels at the bottom of the screen. These could be programmed by
337:
Kiljander, Harri (2004) “Evolution and usability of mobile phone interaction styles” Helsinki
University of Technology, dissertation
83:
61:
184:
211:
terminals could lock the top two lines of the screen, so they displayed the key functions there. Starting with
152:
54:
48:
220:
164:
160:
65:
372:
251:
use function keys to open drop-down menus on their menu bar, the menu title acting like the key label.
356:
141:
244:
105:
17:
297:
270:
216:
200:
151:
Screen-labeled function keys are today most commonly found in kiosk applications, such as
109:
129:
125:
366:
293:
192:
248:
137:
133:
96:
269:, have an additional center soft key, activated by pressing on the center of the
277:
168:
167:. An alternative to screen-labeled function keys is buttons (virtual keys) on a
281:
101:
351:
257:
calculators use the function keys for a menu at the bottom of the screen.
156:
212:
208:
204:
199:
in the late 1960s/early 1970s (first ordered 1967, delivered 1970–73).
28:
179:
148:
is a key with dedicated function such as the keys on a number keypad.
304:
system "has been proven to reduce training time and cashier errors".
228:
224:
196:
266:
254:
203:
developed them for use in computers/calculators in the 1970s. The
178:
132:, where they are typically programmed to invoke functions such as
95:
33:
227:
Amigo, which used keys at the right side of the screen and
223:. This would be further developed on the failed
292:Screen-labeled function keys have found use in
280:take the place of function keys on many modern
8:
276:Soft keys have become increasingly rare as
84:Learn how and when to remove this message
27:For the computer software publisher, see
47:This article includes a list of general
313:
144:are a form of soft key. In contrast, a
195:, such as the Mark II avionics of the
191:Early examples are found in aviation
7:
100:Screen-labeled function keys on a
53:it lacks sufficient corresponding
25:
378:Graphical user interface elements
350:
38:
1:
18:Screen labeled function keys
136:, memo, or volume control.
122:screen-labeled function key
394:
26:
185:Mercer Island, Washington
153:automated teller machines
247:calculators such as the
165:multi-function displays
68:more precise citations.
322:"NCR RealPOS™ DynaKey"
188:
113:
235:Graphical calculators
182:
99:
359:at Wikimedia Commons
221:configuration screen
124:located alongside a
108:', 'New Call', and '
300:claims that their
189:
187:with function keys
114:
355:Media related to
245:Texas Instruments
94:
93:
86:
16:(Redirected from
385:
354:
330:
329:
318:
89:
82:
78:
75:
69:
64:this article by
55:inline citations
42:
41:
34:
21:
393:
392:
388:
387:
386:
384:
383:
382:
363:
362:
347:
334:
333:
326:NCR Corporation
320:
319:
315:
310:
298:NCR Corporation
290:
271:directional pad
263:
237:
217:escape sequence
201:Hewlett-Packard
177:
130:cellular phones
90:
79:
73:
70:
60:Please help to
59:
43:
39:
32:
23:
22:
15:
12:
11:
5:
391:
389:
381:
380:
375:
365:
364:
361:
360:
346:
345:External links
343:
342:
341:
338:
332:
331:
312:
311:
309:
306:
289:
286:
262:
259:
236:
233:
193:glass cockpits
176:
173:
161:primary flight
126:display device
92:
91:
46:
44:
37:
24:
14:
13:
10:
9:
6:
4:
3:
2:
390:
379:
376:
374:
371:
370:
368:
358:
353:
349:
348:
344:
339:
336:
335:
327:
323:
317:
314:
307:
305:
303:
299:
295:
294:point of sale
288:Point of sale
287:
285:
283:
279:
274:
272:
268:
260:
258:
256:
252:
250:
246:
241:
234:
232:
230:
226:
222:
218:
214:
210:
206:
202:
198:
194:
186:
181:
174:
172:
170:
166:
162:
158:
154:
149:
147:
143:
139:
138:Function keys
135:
131:
127:
123:
119:
111:
107:
103:
98:
88:
85:
77:
67:
63:
57:
56:
50:
45:
36:
35:
30:
19:
373:Input/output
325:
316:
301:
291:
278:touchscreens
275:
264:
261:Mobile phone
253:
249:TI-89 series
242:
238:
190:
150:
145:
121:
117:
115:
104:, allowing '
80:
71:
52:
282:smartphones
169:touchscreen
66:introducing
367:Categories
308:References
102:VoIP phone
49:references
296:systems;
157:gas pumps
142:keyboards
357:Soft key
146:hard key
118:soft key
74:May 2009
302:DynaKey
243:Modern
213:HP 2647
209:HP 2640
205:HP 9830
183:ATM in
175:History
110:CFwdALL
62:improve
29:SoftKey
229:HP 250
225:HP 300
197:F-111D
106:Redial
51:, but
267:Nokia
255:Casio
163:and
155:and
219:or
140:on
134:PTT
369::
324:.
284:.
116:A
112:'.
328:.
87:)
81:(
76:)
72:(
58:.
31:.
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
