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Keypad used by T9. T9's objective is to make it easier to enter text messages.It allows words to be formed by a single keypress for each letter, which is an improvement over the multi-tap approach used in conventional mobile phone text entry at the time, in which several letters are associated with each key, and selecting one letter often requires multiple keypresses.
Predictive text is an input technology used where one key or button represents many letters, such as on the physical numeric keypads of mobile phones and in accessibility technologies. Each key press results in a prediction rather than repeatedly sequencing through the same group of "letters" it represents, in the same, invariable order.
Input validation (including buffer overflow and boundary condition) vulnerabilities occur when input checking is not sufficient to prevent the attacker from injecting malicious code. [21] Access control vulnerabilities enable an attacker to access a system that is supposed to be restricted to them, or engage in privilege escalation. [21]
A scancode (or scan code) is the data that most computer keyboards send to a computer to report which keys have been pressed. A number, or sequence of numbers, is assigned to each key on the keyboard.
In other words, to convert the text from an image to editable text (that is, a string of character codes), a person could re-type it, or a computer could look at the image and deduce what each character is. OCR technology has already reached an impressive state (for example, Google Book Search) and promises more for the future.
Key Code Qualifier is an error-code returned by a SCSI device. When a SCSI target device returns a check condition in response to a command , the initiator usually then issues a SCSI Request Sense command .
Windows keyboards worldwide tend to simply label the key with the text ↵ Enter, while Apple uses the symbol ⌤ (U+2324 ⌤ UP ARROWHEAD BETWEEN TWO HORIZONTAL BARS [9] or U+2305 ⌅ PROJECTIVE) on ISO and JIS keyboards and the text ⌅ enter on ANSI US keyboards; [10] this is acknowledged by an annotation "enter key" on U+2324 in the Unicode ...
For the user to get the benefit of the full n-key rollover, the complete key press status must be transmitted to the computer. When the data is sent via the USB protocol, there are two operating modes: Human Interface Device (HID) "report protocol" and "boot protocol". The (optional) boot protocol, which is solely used by very limited USB host ...