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Q. Explain Keyboard Input and Video output ?
A Keystroke read from keyboard is termed as a console input and a character displayed on the video screen is known as a console output. In assembly language reading and displaying character is most tiresome to program. Though these tasks were greatly simplified by convenient architecture of 8086/8088. Thatarchitecture offers for a pack of software interrupt vectors starting at address 0000:0000.
The benefits of this type of call is that it appears static to a programmer however flexible to a system design engineer. For illustration INT 00H is a special system level vector which points to the 'recovery from division by zero' subroutine. If new designer come and want to move interrupt location in memory it adjusts entry in the IVT vector of interrupt 00H to a new location. So from the system programmer point of view it's relatively easy to change vectors under program control.
Which is most general phase structured grammar? Context – Sensitive is most common phase structured grammar.
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The commands (instructions) are native instructions to the 68HC11 and therefore it is termed a low level language program. Examining the program the instructions (mnemonics) they a
C provides a wide range of variable types. Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
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What is an interface and what is an abstract class? Please, expand by examples of using both. Explain why. In a interface class, all methods are abstract without execution w
(a) Name five important activities involved in a digital forensic investigation. (b) Briefly describe the three types of data that a forensic examiner has to work with. Whic
We use VuGen to make a Vuser script by recording a user performing typical business processes on a customer application. VuGen makes the script by recording the activity among the
Q. What is Unique port number? A port is an extra 16-bit number which uniquely identifies particular service on any given machine on Internet. Port numbers are 16 bit wide, con
Describe briefly how firewalls prevent network. A firewall is only a program or hardware device which filters the information coming via the Internet connection within your pr
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