To download any of my Qbasic programs simply right click on the link and go to save as. Sometimes when a programmer write long programme, he or she will like to leave notes inside their programme so that they can remember why they did certain things. QBasic Tutorial: Chapter 3 The PRINT statement - Writing data to the screen. These operations are addition, subtraction, multiplication and division. MB = Play music in background, this will let the computer play music while the program continues with other things. Recap with respect to class 6 Introduction to QBasic: QBasic is a simple programming language developed by Microsoft to type, edit, debug and execute BASIC programs. SELECT CASE - QBASIC SELECT CASE adalah salah satu bentuk perintah kondisi dalam Qbasic selain IF THEN. Smart Communications is the Philippines' leading mobile network for Call, Text and 4G Internet services. QBasic Tools and Utilities - Source code formatting and other Tools QBasic 4. This website and its content is subject to our Terms and Conditions. Teletype machines from the Teletype Corporation, Skokie, Illinois. Explain Features of Functions,Types of Functions and Calling a Function by Dinesh Thakur Category: Functions For Example, if we need Same Code, then we must have to Write that Code Again and Again So that for Removing this Task, we uses functions. This note provides an information about different statements used in QBASIC. A note in explanation, expansion, or criticism of a passage in a book, article, or the like; annotation. Hexadecimal. Dear Internet Archive Supporter, I ask only once a year: please help the Internet Archive today. 1 from MS for free. Programmed Lessons in QBasic. Qbasic: The qbasic command starts QBasic, the MS-DOS based programming environment for the BASIC programming language. It is an integrated development environment (IDE) to write, edit, debug and execute. QLB, and QB. The view window is the largest part of the QBASIC screen. QBASIC with an Introduction to Visual Basic for Engineering, Mathematics, and the Sciences by David I. com - download here. This documentation/syntax page contains all possible syntax you may use when editing the pages on the website. The generator would be used to f. Note that in the printed output, a blank space occurs before each variable, although you did not type a space in the program. In QBasic, strings have quotation marks around them, for example, "Kuldeep”. There are a number of significant updates in this version that we hope you will like, some of the key highlights include: If you'd like to read these release notes online, go to Updates on code. The command "qbasic" in the last line will initiate the program and the screen in Figure 2 will appear. About the QBASIC Screen. Is there any way to download a version of QBasic for Windows for free? I don't want Visual Basic. exe et Qbasic. Release Notes. “We haven’t really looked for outside instructors,” says founder Michael Choi, though he notes developers are invited to speak to students. C Program to Check Whether a Character is a Vowel or Consonant In this example, you will learn to check whether an alphabet entered by the user is a vowel or a consonant. Information Processing. LIB in your QuickBASIC directory. With 8 program examples as BAS files. This website and its content is subject to our Terms and Conditions. The Small Basic Environment. Pete's QBASIC Site. Nam Sun Wang Department of Chemical & Biomolecular Engineering University of Maryland College Park, MD 20742-2111 301-405-1910 (voice) 301-314-9126 (FAX). Notes 1-127 are ascending tones. To get around this problem use DOSBox or QB64. "e8" means play an eighth note "e". So, if you are using say a Mac; then, it will NOT work there. When you click the “Download” link on this page, files will downloading directly from the owner sources Official Site. Simple Image HTML Example Program ( For Your System ) (Consider your image name is Logo. D) SCREEN 13, 15 done clear. A remark is actually considered as a comment. Express Notes v. MF = Play music in foreground, the program will be paused until the music is done playing. Optimization Optimization with QB Logic Use of XOR. I have looked at the QBASIC code and found LPT1 in plain ASCII embedded twice in the code, but if I change LPT1 to USB001, QBASIC doesn't work anymore. See Appendix C for details. Figure 2: QBASIC Startup Screen. com only do ebook promotions online and we does not distribute any free download of ebook on this site. Press X or select Exit command under the File menu and press Enter key. NOTE: The statement, RANDOMIZE TIMER, is used to 'seed' the QBASIC random number generator; by selecting a random number to start the sequence of numbers off with which is based on your current. (Note: all lower case letters and no spaces. These notes are an introduction to computer programming using the language QBasic. I want something that will be compatible with directly transfered code from the DOS version of. Qbasic is easy to learn. Run QBasic on Android. QBASIC Editor checks syntax errors and capitalizes QBASIC reversed words. In the resulting dialog box, type the path to the folder that contains QBASIC (for example, C:\QBASIC), then click OK. It superseded Microsoft's GW-BASIC and included REMLINE. During the operation, the software performs pre. If you're using an older version of Windows (Windows95, Windows98 and WindowsME), you can download this version of Tux Paint for older Windows. QBasic offers an alternative to typing PRINT. Nnote Plays a specified note (0 - 84) in the seven-octave range (0 is a rest). Fortunately, while QBasic does not include any commands for accessing the mouse in user programs, it DOES include commands for incorporating machine language code into our programs, which in turn allows us to access mouse. Character Set: A character set refers to the composite number of different characters that are being used and supported by a computer software and hardware. Note that Windows 7 doesn't support anything from this point on. It has some extra features that aren't in Microsoft QBasic. "" None of my students are presumed to have any programming experience, and they never hesitate to remind me of that fact, especially when they are starting out. It superseded Microsoft's GW-BASIC and included REMLINE. Chandrupatla, Mechanical Engineering Thomas J. For " PRINT "steering, the tank will go in the" PRINT "direction of the arrow on the key. HeavyJay writes "When I purchased QBASIC Programming for Dummies, I expected a clear, concise tutorial on how to construct programs in QBASIC. net, here are some direct links to them: Note, to ask questions or comment you will need to register, and login, there. hlp to a directory on your hard drive. English commerce Compulsory English-I Compulsory English-II computer computer science Computer Science-I Computer Science-II eco economics Economics-I Economics-II Education english finance Flax Golden Tales four levels Four levels of. Remember that in different programs, different characters may or may not appear. pdf), Text File (. With the iPad a new possibility to make your work more efficient and the process replaces files and paper. When you click the “Download” link on this page, files will downloading directly from the owner sources Official Site. Solved SEE Computer Science. This note gives an outline of the language for those of you familiar with programming. For subtraction, the - sign is used. Chapter-1 (Introduction to QB) Well ready for some QB lessons. Qbasic can be found in one of the locations below. Get basic cell phones from Verizon to stay in touch. Coupon collector. I was going though some of my old floppy disks and ran across a bunch of old Qbasic games and demos I made. Note that the # of rows in the first matrix must equal. If you are" PRINT "playing a one player game, you are white" PRINT "and the computer is blue. For multiplication, the. I copied them onto C: , (you may ask your friend to do that for you if you don’t know how to do that). QBasic as well as QuickBasic is an easy-to-learn programming language (and therefore ideal for beginners), based on DOS operating system, but also executable on Windows. qbasic programs for class 7 pdf Line, Box, Box Fill, Paint and Circle will. To understand this example, you should have the knowledge of the following C programming topics:. At the University of Utah, I teach the R lab that accompanies MATH 3070, "Applied Statistics I. QBasic is a Microsoft Program. It is filled with chapters on sound and graphics that nearly every other book on the market neglects to include. NET (Ed Robinson, et al) This book is a complete technical guide to upgrading Microsoft Visual Basic 6 applications to Microsoft Visual Basic. Reply Delete. This introduction is used for a course in computer literacy for students of all majors. X being the letter of your CD-ROM drive, if you want to use QBasic without the Windows 98 CD, you must copy QBasic. QBasic Multiplayer? But it sounds like you are competent enough that you are pushing the limits of QBasic, and that is the time to make the move. QUICKBASIC has many more capabilities than QBASIC, and allows much larger programs to be written, including easier interfacing with other high-level languages (such as C++) and low-level languages (like MACRO ASSEMBLER). The hexadecimal system is Base Sixteen. Since it also acts as the interpreter, you can't get around using the QBasic editor. fileName$ can be up to 255 characters with no limit on file name extension length in QB64. The Revolutionary Guide to Qbasic is by far the best book out there for programming games in basic. Qbasic Manual Roller — Qbasic sets a new standard for manual shades, and is anything but your basic clutch type manual shade. QBasic IDEs QBasic includes a simple text editor - with emphasis on simple. They are not the same. Download Class 6 Computer Science latest Sample Papers and Question Papers with Solutions, Important chapter notes, MCQs and other study material covering topics computer fundamentals, introduction to internet, ms word practical application, basic, power point, uses of computers, access study material for Computer Science free in pdf prepared based on examination pattern and blueprint issued. The view window is the largest part of the QBASIC screen. Téléchargement de QBasic (s'il n'est pas déjà sur votre PC) : qbasic. Summer 2010 15-110 (Reid-Miller) Two-Dimensional Arrays • Two-dimensional (2D) arrays are indexed by two subscripts, one for the row and one for the column. Therefore QBasic. String A bunch of characters. Notepad++ 7. 1 HOW TO MODIFY OLD QBASIC PROGRAMS TO RUN IN VISUAL BASIC Seth Bergmann, Computer Science Department Tirupathi R. Sheet music arranged for Piano/Vocal/Chords, and Singer Pro in F Major (transposable). 117 A safer, faster, reliable, and more stable web browser for a better Internet experience. (Note that it is not correct to refer to QuickBASIC as QBasic -- Microsoft considers them to be two separate products. 5 in its directory, "C:\enspire\cclone\". QBASIC fundamentals 10/12/2007 4 4 QBASIC techniques for Beginners by Pravesh Koirala. Play tank games at Y8. They are literally notes that are played in music pieces, and they all apparently are living beings. Beginners Programming Tutorial in QBasic. It is ease of use , its English -like commands and its power. It's a lot more fun to create your own games to play on the computer. PERMUTATIONS and COMBINATIONS or "HOW TO COUNT" Note that this is technically NOT considered a factorial (since we don't go all the way down to 1),. It’s a learning resource but has also become a celebration to the early days of personal computing. The menu bar is located acrosss the top of the window and it shows you a list of menu names like File, Edit, Search, Run, Debug, and Options. Calls to sort subarrays of size 0 or 1 are not shown. There are many more special commands in PLAY. These notes roughly correspond to text chapter 10, although the approach is considerably different; Overview. Samsung Galaxy Note 10. Despite its resemblance to a DOS windows, cmd. This little tutorial was written for beginners entering the world of QBasic. QBASIC is a programming language. Recap with respect to class 6 Introduction to QBasic: QBasic is a simple programming language developed by Microsoft to type, edit, debug and execute BASIC programs. (except for speed, the Qbasic Microsoft gives us free is an interpreter, though Microsoft has a Qbasic compiler). Ode to Joy is programmed in QBasic / QB64. Unlike binary and octal, hexadecimal has six additional symbols that it uses beyond the conventional ones found in decimal. An Open Source private and offline journal/diary and note taking application for Linux Chromium 79. With a programming language you can tell the computer what you want it to do. Only a few were "finished" and playable as games so I thought I'd share them with you guys. About Rahul Notes My name is Rahul Kumar Gupta I'm a Blogger and my BLOG name is Rahul-NOTES. It’s a learning resource but has also become a celebration to the early days of personal computing. SKU: MN0171180. This little tutorial was written for beginners entering the world of QBasic. QBasic Programming QBasic stands for Beginner‘s All -Purpose Symbolic Instruction. Please note that DATE$ and Name are on the list. To understand this example, you should have the knowledge of the following C programming topics:. This leads to the interesting observation that if you always use C++-style comments (// ), you can easily comment out a section of code by surrounding it with C-style comments. NOTE: The password is "password"!!! EnSpireMe is a very neat GUI for QBasic. An Open Source private and offline journal/diary and note taking application for Linux Chromium 79. (except for speed, the Qbasic Microsoft gives us free is an interpreter, though Microsoft has a Qbasic compiler). Question: Write a Program in Java to input a number and check whether it is an Automorphic Number or not. NOTE: QBasic uses the internal speaker to play sounds and music. Imaged from 3. Easily find and install new applications or remove existing installed applications with the Snap Store snap. WARNING: Phone flashing is a double-edged sword; it may be useful and dangerous at the same time. Qbasic is a character programming language. There are many more special commands in PLAY. BASIC statements included in your command stream are executed when a"Hot Command" such as. < QBasic In this lesson, we will learn how to create and modify files. 1 users who can't make. This will open the editor. One important fact to note: because the missing value is technically a very large negative number, the expression X < 0 will evaluate as true if X is missing. Print and download Despacito sheet music by pianoNOW arranged for Piano. PESENSENTATION ON QBASIC By-SHUBHAM GUPTA CLASS-6th A ROOL NO. A-PDF Manual Split is a simple, QBASIC Programming for Kids - Ted Felix - By Ted Felix. Find materials for this course in the pages linked along the left. The two most mature suitable projects are QB64 and FreeBasic. QB64 & QBasic Language Extension + Compiler for VSCode - andymule/qb64-vscode. QBasicTimer, and call its PySide. The object-oriented techniques are recommended. us – Free download Free Basic. I've searched all over the internet looking for a list like this of these codes (ASCII codes), but couldn't find them anywhere. WARNING: Make sure that the loop has a condition that will end the loop. Write a program to print the sum of the two numbers passed as parameters 2. I was hoping to translate the search tree non-recursive program into QBASIC but always get stuck because of his assignments. These notes are an introduction to computer programming using the language QBasic. QBASIC stands for Quick Beginners' All-purpose Symbolic Instruction Code. QBasic has a set of symbols which represent each variable type: $ String % Integer & Long! Single # Double. Note that many of these characters are specific to font. Computers can only understand numbers, so an ASCII code is the numerical representation of a character such as 'a' or '@' or an action of some sort. Qbasic Program' title='Qbasic Program' /> Microsoft BASIC version information. Fields denoted with an asterisk (*) are required. QBasic An earlier BASIC interpreter from Microsoft that came with DOS starting with DOS 5. Is there any way to download a version of QBasic for Windows for free? I don't want Visual Basic. When you click the “Download” link on this page, files will downloading directly from the owner sources Official Site. QBASIC does not use technical terminology (word) to write statements. I am new to the programming world, just started using VB and QB in programming. Notes on this release. Android is a Linux-based Mobile Operating System. Nnote Plays a specified note (0 - 84) in the seven-octave range (0 is a rest). Chandrupatla, Mechanical Engineering Thomas J. Note that Windows 7 doesn't support anything from this point on. For multiplication, the. I was wondering if I could make a random generator in Qbasic. It is modular programming language where program is divided in different modules or procedures. Pete's QBASIC Site. If you are familiar with sheet music, this will make sense. File Handling in QBASIC. cls - cls is a command that I use a lot. Have just discovered QBasic forum, despite having been using QBasic for about 15 years, firstly on WINDOWS 3. This article lists some basic DOS commands that you are likely to find useful when working from the command line, but there are many more available. Android is a Linux-based Mobile Operating System. It superseded Microsoft's GW-BASIC and included REMLINE. If you are getting Subprogram not defined errors in QuickBASIC 4. QBASIC PROGRAMS FOR SEE [SUB AND FUNCTION PROCEDURE] (SET 4) QBASIC Programs SET-3 [SUB and FUNCTION] QBASIC PROGRAMS For SEE Appearing Students - SET 2. QBASIC has Characterized User Interface (CUI). News, Off Topic, Trash, QBasic / QuickBasic related, Other programming languages, Rund um QBasic und QuickBasic, Laber-Ecke. Qbasic shades offer a quality. (except for speed, the Qbasic Microsoft gives us free is an interpreter, though Microsoft has a Qbasic compiler). The first program will display the words "Hello World" on the screen. If you like to try qBasic, it's ancient by today's standards, I will share you what you need to know. that means is that in QBasic, after typing PRINT (note, for a short cut, just type a question mark '?') a programmer types the things he wants displayed and PRINT will display them. In doing so, we will create a portion of a text editor to handle reading and writing files to and from disk - the program won't be complete by the end of this chapter, but will be finished within Advanced Text Output. Free download Programming software. Note(s) - are variables/constants (0-255) which specify type and frequency. They are capable of speech, as they talk to the player when their character runs into them. To add, the + sign is used. Chapter-1 (Introduction to QB) Well ready for some QB lessons. GitHub Gist: instantly share code, notes, and snippets. QBasic Tools and Utilities - Source code formatting and other Tools QBasic 4. What is going on, why are the calculations not being done correctly? I am fully (I think) conversant with Qbasic, but not very familiar with Fortran. Boe-Bot Robot Kit - USB. QBASIC stands for Quick Beginner’s All-purpose Symbolic Instruction Code. EXE is on the Windows 95 and 98 CDs under \TOOLS\OLDMSDOS. It helps us see patterns. The electronics are looking nice; now I have to figure out to transfer stuff to and from this AVR. These notes roughly correspond to text chapter 10, although the approach is considerably different; Overview. Study NCERT Solutions of Introduction to QBASIC of Class 6 Computer Science to get answers for all the questions. Press X or select Exit command under the File menu and press Enter key. category: Computer Science Notes Table of Contents 1. Processing Data. Compatibility note: This version of Tux Paint is for modern Windows systems, including: Windows XP, Windows 2000, Windows Vista, Windows 7, Windows 8, and Windows 10. NOTES: QBASIC. Welcome to my QBasic quiz! If you like to program in QBasic, then take this quiz! Average score for this quiz is 6 / 10. Pokrenimo QBasic !!!. Upoznavanje s programskim jezikom QBasic-om Basic ( eng. Qbasic calendar for this month / qbasic file for antitaylor 6 Steamboat Problem: Mark Twain sat on the deck of a river steamboat. exe is not original. The element in the tenth row and the third column would be assigned and accessed by:. Write a program to calculate the volume of a cylinder where pi=3. Ode to Joy is programmed in QBasic / QB64. Review of How Computers Work. If you are getting Subprogram not defined errors in QuickBASIC 4. qbasic programs for class 7 SchoolFreeware. QBasic, a short form of Quick Beginners All purpose Symbolic Instruction Code, is an integrated development environment (IDE) and interpreter for a variety of BASIC programming languages which are based on QuickBASIC. The latest version of this was released on 21st August 2009. (Note : my copy of Qbasic was stored on WINDOW 95 CDROM, under the directory D:\other\oldmsdos. "" None of my students are presumed to have any programming experience, and they never hesitate to remind me of that fact, especially when they are starting out. For example 0! is a special case factorial. For the future I'm interested in overhauling the look of the website, and of course, always to add another previously missed QBasic game of note. We make sure that our notes are smooth and assist in retention of information. 3 Words to Know CBSE Notes for Class 7 Computer in Action - Looping Statements in QBASIC QBASIC is a high-level programming language. It is a collection of data of an entity. English commerce Compulsory English-I Compulsory English-II computer computer science Computer Science-I Computer Science-II eco economics Economics-I Economics-II Education english finance Flax Golden Tales four levels Four levels of. They seem connected to the place, yet they do. The format is a subset of the Music Markup Language supported by QBasic. This little tutorial was written for beginners entering the world of QBasic. PRINT [Text to screen] Note: For a short cut, just use a question mark "?" in place of the command "PRINT". Please note that rotation formats vary. Learning QBasic What is QBasic? QBasic is a programming language designed for DOS (disk operating system) and is a very good "transitional language" to learn to help you migrate from TI-83 BASIC to modern day languages like Visual Basic, C++, and Java. INSTALLATION INSTRUCTIONS Clutch Spring Shaft Clutch Bracket Control Chain Spring Bracket Child Safety Bracket INSTALL THE MOUNTING BRACKETS If the clutch is on the right end of the shade, attach the brackets to the window frame, window molding, wall or ceiling, as. Qbasic calendar for this month / qbasic file for antitaylor 6 Steamboat Problem: Mark Twain sat on the deck of a river steamboat. Current line. Computer Board Notes Geometry Board Notes Physics Board Notes College Algebra / Trig Board Notes Basic Geometry Constructions Video Factorfind Program Physics Energy Quiz Geometry Online Construction Tools Graph paper, 4 per page Graph paper, 12 per page Important information for all students Trig website Math and Science Club visits Keokuk. Ok now try to learn some fundamentals before actually starting programming concept. 5 EN, 133328 Boot your PC with password protection - german manual only. I have even inquired of the Great Oracles of StackOverflow, to no avail. With 8 program examples as BAS files. QBASIC is not "exactly" upwards compatible with GW-BASIC, but apparently it is compatible enough. There are a few ways of making sounds and music in QBasic / QB64. Note that this is not the same as the empty string (value ""). Easily find and install new applications or remove existing installed applications with the Snap Store snap. It's a lot more fun to create your own games to play on the computer. BASIC is short for Beginner's All-purpose Symbolic Instruction Code and is an easy-to-understand programming language that was popular during 1970 - 1980. QBasic, a short form of Quick Beginners All purpose Symbolic Instruction Code, is an integrated development environment (IDE) and interpreter for a variety of BASIC programming languages which are based on QuickBASIC. This website and its content is subject to our Terms and Conditions. VMware vSphere Hypervisor ESXi 6. 5 in its directory, "C:\enspire\cclone\". In octal, that is 8 3-1 which is 64. String A bunch of characters. notes A set of musical notes to play. The basis of almost all programming languages is QBASIC because it contains familiar commands that the others do. Notes on Mapping, Projections and Data Analysis. English commerce Compulsory English-I Compulsory English-II computer computer science Computer Science-I Computer Science-II eco economics Economics-I Economics-II Education english finance Flax Golden Tales four levels Four levels of. Think of this space as an imaginary plus sign. fileName$ can be up to 255 characters with no limit on file name extension length in QB64. Section 1 - Basics. NOTES: QBASIC. QBASIC Programs SET-3 * Students as well as teachers can download worksheet, notes, question sets, class test exam paper etc in the form of printable document. QBasic/QuickBASIC. The original BASIC was first developed at Dartmouth College by John Kemeny, Mary Keller, and Thomas Kurtz and introduced on May 1, 1964. QBasic Fundamentals and Style with an Introduction to Microsoft Visual Basic, Second Edition by Quasney, James S. web site healthy check report of https://paste. 2 User's Guide and User's Reference. Note: To make sure that your QBasic program closes down, it should finish by executing a SYSTEM command instead of an END command. Many computers do not come with internal PC speakers anymore. Note the command "cd" is for "change directory" and the backslash "\" must be used. Starts the MS-DOS QBasic programming environment. 74-3 has been released! A security release for DOSBox 0. pdf), Text File (. Once you have the help file, open QBASIC, go to the Options menu and choose Help Path. B) COLOR 13, 15 CLS done clear. You can not use them as variable names. QBasic Tools and Utilities - Source code formatting and other Tools QBasic 4. Phishing Page – Note the misleading URL. These are some notes regarding possible pitfalls in projecting (lat,lon) onto (x,y) in geophysical or oceanographic data analysis. What Are the Dangers of Slow Response Times? 4. Ode to Joy is programmed in QBasic / QB64. This is the Program Area. PLAY is like a little programming language inside of QBASIC. The question is how do I get QBASIC to print to the HP 656c printer through this port? When I try using LPRINT, my computer hangs up and sits idle for several minutes. /QBASIC Programs in QBASIC Ü) = DUMMY LINE - neßeSSal'y or implied. “OMG please don’t teach him GOTOs!!”. The Revolutionary Guide to Qbasic is by far the best book out there for programming games in basic. QBasic obsahoval už více než před deseti lety vyspělé vývojové prostředí, včetně debuggeru s vlastnostmi, jako je vyhodnocování výrazů a úprava kódu za běhu programu, což bylo relativně neobvyklé i v roce 2003. And one of the launch products was the Microsoft Game Shop, back from 1990. MN Sets music normal. The next version of Microsoft Basic was QBASIC, which "replaced" GW-BASIC. 1) can end the infinite l. - Introduction to QBasic. Compared to QuickBasic, QBasic is limited as it lacks a compiler. Ok, this next set of commands are all really simple as well, but are nice to have. What Exactly is a Real-Time Operating System? 2. Its goal is to show what programming is about using the fundamental features of QBasic. Notes Is the user considered billable or non billable (eg support, development, training etc) User location, address details This is the current subscriber number reported by the vendor (eg Reuters UK12345) This is the current subscriber name reported by the vendor to the Exchange for the customer entity. Make sure you have the files QB. Solved previous question papers. What is going on, why are the calculations not being done correctly? I am fully (I think) conversant with Qbasic, but not very familiar with Fortran. Get powerful ram and massive storage with the all new Galaxy Note 10. Softschools. QBASIC was derived from Microsoft's highly successful and incredibly powerful QUICKBASIC compiler series. Nnote Plays a specified note (0 - 84) in the seven-octave range (0 is a rest). #include More information will be added here shortly. QBASIC, or QB64 as it is now called, is a very good choice for a first programming language, as you can achieve a lot with very little effort. The earliest programming languages were assembly languages, not far removed from instructions directly executed by hardware. QuickBASIC using modular structure by. On September 5, 2017 By educationhubnepal In Grade 10, Note, Uncategorized Leave a comment QBASIC is a high level programming language. All software products that you can find on Download.