Aa Signature: Fill & Download for Free

What platform is this system running on? If it's on an IBM PC you can do it with a boot sector on a floppy disk image. I think software interrupt 0x10 on BIOS is used to write to the display, 0x16 reads the keyboard and interrupt 0x18 performs a reboot. You need to do a little bit of work to set up the Local, Global and Interrupt descriptor table registers to run 32 bit code, since a PC boots up in a 16 bit emulation mode, so let's assume you're writing a 16 bit program for sake of simplicity.The first sector = 512 bytes of a disk is just loaded into memory and "jumped" to by the BIOS, provided it finds a simple marker in the last two bytes of the first sector that indicate it is bootable.So your code has to start with a jump instruction to an actual executable assembly program, followed by some data about the structure of the disk, e.g. numbers of sectors per track, cylinders, disk layers, drive heads, etc. so you make the first instruction a jump over this data table. (you probably want to modify an image of a blank floppy disk to have an example of the correct disk layout data). You've got 512 bytes to use for your program. (interrupt 0x13 can read more sectors off the disk)org 0x000jmp 0x100; disk layout data needs to go here;org 0x100mov ax, 0x0e48 ; AH = 'write teletype function', AL = 'H'int 0x10mov al,0x65 ; AL = 'e'int 0x10mov al,0x6c ; AL = 'l'int 0x10int 0x10mov al,0x6f ; AL = 'o'int 0x10;(etc.)mov ax,0x1600 ; press any keyint 0x16; al contains the keyint 0x18; rebootorg 0x1fedb 55 AA ; signature / magic bytes that mark the sector bootableyou can run that in VirtualBox or on a DOS machine with a floppy drive.. you need an 8086 assembler.

If we are to have a helicopter for optimal silent extraction, let us look at Operation Neptune Spear.In the famed raid on Osama's compound in Abbottabad, Pakistan, the U.S. Naval Special Warfare Development Group, more commonly known as Seal Team Six, employed two modified Sikorsky UH-60 Black Hawks. These were needed as the US did not want to risk alerting the Pakistan government and in turn Osama, as to the raid and decided that absolute secrecy was needed. To avoid Paksitan radar installations and AA emplacements, the US modified two Blackhawks helicopters to support Team Six's entry into Pakistan. They launched out of Bagram Air Force Base to Jalalabad, Afghanistan then on to Abbottabad, Pakistan, violating Pakistan sovereignty.Rendering of the modified UH-60 Blackhawk used in Neptune SpearOne of the helicopters was lost on the mission due to a vortex ring state and subsequent details have shown us the modifications done to these helicopters that made them practically invisible to Pakistan radar installations. These modifications include:Specialized materials used on the B-2 and F-117 being placed onto the airframe, reducing radar signatureUse of harsh deflecting angles, again reducing radar signature and making identification harderSmoothed out airframe with flat surfaces and no extending wings or identifying marksModified rotor endings which reduce the vibrations in the airwaves that the rotors will generate when movingLowering the rotor speed to reduce air vibrations by adding an additional rotorEngine shields to focus exhaust and reduce heat signatureActive countermeasures in the form of chaff and flare dispensers located in the tail sectionWith these modifications, the UH-60s of the 160th Special Operations Aviation Regiment were able to transport Seal Team Six the 324 miles from Bagram Air Force Base to Abbottabad under Pakistani radar and zero military alerts to eliminate OBL.Save for that one tweet which blew the whole thing

THE PROGRESS REPORT CARDThis was when i was in 11th standard. I was a very notorious student and was often called to the Principal's room to get scolded by her. My dad was often called to the school because of me. I used to tell my dad in the morning itself that he might be called today for some mischief which i did the previous day. My dad used to get angry because he had to leave his office in the middle and come to the school. One day, i was skipping a class and the Class teacher informed the School Principal about it. "Princi" as we used to call her called me to her office and straight away dialled my dad's office number from her landline. She remembered his number as she had called him to school earlier also.Princi to my Dad- "School aaiye zara.... aapka beta yaha bahut karnaame kar raha hai".(English Translation- "Pls. come to school....Your son is doing a lot of misdeeds").My dad came in half an hour. I was in Princi's room till then. Princi scolded me in front of my dad for 10 minutes and also strictly advised my dad to make me focus on studies. My class teacher also entered Princi's room at the same time. After the Princi's lecture was over, me and my dad got out of her room and my dad started talking to my class teacher.My class teacher said to my dad- "Ab aap school aa hi gaye hai to iska progress report card bhi sign kar dijiye"( "Since you have come to the school,please sign his progress report card also")And he handed over my report card to my dad.It was the day when we're supposed to get our report cards. My heart started beating faster.My dad was seeing my report card for the first time and as he opened the report card he found it was already signed thrice against "Parent's Signature" column ( for 2 unit-tests and one half yearly exam). It was me who never showed that report card to him whenever we're given it to get it signed by our parents. I always signed it by writing my father's name in some fancy style and submitted it back without anyone knowing at home and school.After looking at those signatures my dad looked at me with big eyes. He knew that it was me. I was feeling bad but was also not able to control my laughter thinking about the situation.The class teacher gave him a pen. He carefully examined the earlier signatures made by me and copied the same signature in the next column."I love you Dad" i said in my mind with my eyes down.As we left the room I bursted out laughing and even my dad started smiling.Had he freaked out and told the class teacher that he'd never seen and signed the report card earlier, the Princi would again have scolded me like hell .8 years have passed since then, but whenever i visit home I always discuss the case of that report card with my dad.