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10 8 DOT MATRIX 8 ;" ": 5 ;x;". ";f$ 5 ;"YOU ARE CORRECT": 5 ;"WRONG.TRY AGAIN": 4 ;" ": 4 ;" ": 4 ;" ": 4 TO CONTINUE" 3 DAISYWHEELS 3 DAISYWHEEL 3 ;" PRESS 2 GRAPHICS RESOLUTION 2 GRAPHICS MODE 2 DISPLAY FORMAT 2 CHARACTER CODE 2 A.C.L. 2 ;"code for the number 2 ;"You will see this demonstrated when you continue.": 2 ;"TO CONTINUE" 2 ;"PRESS ";: 2 ;"EXERCISE 10": 2 ;"-is the computer's"; 2 ;" TEXT MODE ": 2 ;" SOFTWARE ": 2 ;" HARDWARE ": 2 ;" ": 2 ;" ": 2 ;" " 2 ;" " 2 ;" " 2 "; 2 2 1 high quality 1 groups of 8 1 f$,a$,b$,c$,n$ 1 a$=a$+"2. FOLLOW THE LOADING PROCEDURE IN THE MANUAL TO LOAD PROGRAM 4 " 1 a$="e.g. OOOOOO11": 1 a$="OOOOOO11": 1 a$="OO1OOOO1": 1 a$="O1OOOOO1": 1 a$="MF5JG9KR7GH5CH9ZX2" 1 a$=" YOU HAVE NOW COMPLETED PROGRAM 3 " 1 The computer,cassette recorders,disk drives, televisions,monitors, printers and other peripherals." 1 TELEVISION 1 Loading- Please Wait 1 EXERCISE 10 COMPLETED (CODE 1 ELECTROSTATIC 1 DISPLAY MODES 1 DAISYWHEEL. 1 Bits and Bytes 1 A$=A$+"1. TURN OVER THE TAPE AND MAKE SURE THAT IT IS FULLY REWOUND " 1 ;"work going out to customers,mailshots etc." 1 ;"to print the letter 1 ;"the number 1 ;"tells the computer"; 1 ;"per line" 1 ;"continued.." 1 ;"bbbbbbbbbb": 1 ;"What is it to be used for." 1 ;"Volume A"; 1 ;"Therefore this 1 ;"Program 3" 1 ;"POINTS SCORED=";tp 1 ;"If you wish to repeat this section before answering the questions which follow,press the key indicated for REPEAT, otherwise press SPACE to continue." 1 ;"If you wish to repeat this section before answering the questions which follow, press the key indicated for REPEAT, otherwise press SPACE to continue." 1 ;"How much you want to spend.": 1 ;"HOW A"; 1 ;"For example,this is how the letter E would be generated on a dot matrix printer." 1 ;"COMPUTER WORKS"; 1 ;"Active Computer Learning" 1 ;"ACTIVE COMPUTER LEARNING" 1 ;"32 characters": 1 ;"..........": 1 ;"-is the code which"; 1 ;" printers." 1 ;" and ";: 1 ;" TELEVISIONS ": 1 ;" SCREENS ": 1 ;" MONITORS ": 1 ;" GRAPHICS MODE ": 1 ;" EXERCISE 9 ": 1 ;" EXERCISE 8 ": 1 ;" EXERCISE 7 ": 1 ;" EXERCISE 6 ": 1 ;" DOT MATRIX ": 1 ;" DAISYWHEEL ": 1 ;" This uses a spoked wheel with characters moulded into the tip of each spoke. It spins very quickly until the desired character is uppermost.Then a small hammer taps the character against an inked ribbon to produce the print." 1 ;" This term refers to the programs which make the computer work for us." 1 ;" This term refers to the physical components of the computer system." 1 ;" This measurement is usually in the form of the number of horizontal and vertical dots making up the image." 1 ;" These are:" 1 ;" There are 2 main types of printer:": 1 ;" The most common method by which the computer communicates with you is via a screen." 1 ;" Other varieties of 1 ;" Look out for how many lines of text can be displayed,and how many characters there are to a line.This varies between makes of computer." 1 ;" It is much easier to find out what is wrong with a program if you can see the whole thing listed on paper,rather than working through it a screen at a time." 1 ;" In the most common variety, a vertical line of 7 or 9 needles passes across the paper in a series of minute steps.At each step the needles required to produce dots are 'fired' at the paper."; 1 ;" In order to produce typewriter-quality output you need a 1 ;" In both text and graphics mode,monitors give sharper, clearer images.They are much easier on the eyes." 1 ;" If you are building up a basic system you will be able to plug your home computer into most household televisions." 1 ;" Graphics mode displays pictures or diagrams on the screen.": 1 ;" For business use or for people reading from the screen for long periods of time,a monitor can be a necessity." 1 ;" EITHER--Disrupt your family's viewing.": 1 ;" As its name suggests it forms characters on paper by building them up from a series of dots.": 1 ;" An important point to remember is that most monitors do not have speakers.Therefore computers which output sound via a television speaker will be unable to produce sound when used with one of these monitors." 1 ;" A screen will not produce a permanent record of computer output.This is why a printer may be required." 1 ;" Tapes and disks do wear and will not last forever. They can also be accidentally damaged. Therefore,it is useful to have a copy of their contents." 1 ;" pixels" 1 ;" e.g.";: 1 ;" and " : 1 ;" 246": 1 ;" screen." 1 ;" " 1 ;" " 1 ;" " 1 ;" " 1 ;" 1 32,OOO characters. 1 1,OOO characters 1 1,OOO BYTES 1 1 KILOBYTE 1 ...U.D.G.rout... 1 ....Gen E.... 1 . ","slower" 1 ,during this section.Let's now make sure that the distinction between the two is clear." 1 ,and briefly 1 ++repeat+sub++ 1 ++SUB+SPACE++ 1 '''"This system uses only two numbers- ";: 1 '''"Then ' 1 '''"Being an electronic device, it needs a method of representing these numbers electrically in its internal circuits.": 1 '''"A group of 1 ''"Therefore 1 ''"The size of a computers memory is measured in 1 ''"The easiest way to do this is touse the Binary system.": 1 ''"If you examine the codes you will see that these 1 '"We have already established thata computer has no 'brain'."'''"It posseses only one skill the ability to manipulate millions of numbers." 1 '"The next stage up from bytes is to 1 '"For example:"' 1 '" Which you buy depends yet again on:": 1 '" They have heat-producing and spark-producing electrodes, respectively.These replace the needles and ribbons.They require specially treated (and expensive) paper to work on." 1 '" They are usually faster and quieter than the standard 1 '" Many home computer users buy printers so that they can produce 1 '" But remember although you may be cutting costs you may :": 1 '" BYTE"''" OOOOOO11 =3"''" 1 BIT"; 1 ' can indicate the absence of current and ' 1 ' can represent its presence.": 1 "Which system does a computer use to represent numbers in its internal circuits?"," a: The Decimal System"," b: The Binehaven System"," c: The Binary System","c" 1 "What are the terms used to describe the way computers use and store numbers in the Binary System?"," a: Bugs and Bits"," b: Bits and Bytes"," c: Kilos and Bytes","b" 1 "To produce a permanent record of computer output a ------- is required.","printer"," 1 "This measurement is usually in the form of the number of horizontal and -------- dots making up the image.","vertical" 1 "These dots are called ------ and are turned on and off to form pictures. ","pixels" 1 "The two numbers used in the Binary System are:"," a: 0 and 1"," b: 10 and 1"," c: 0 and 10","a" 1 "The term -------- refers to the physical components of the computer system.","hardware","The term -------- refers to the programs which make the computer work for us.","software" 1 "The next step up from Bytes is to:"," a: Milobytes"," b: Kilobytes"," c: Megabytes","b" 1 "The first method of external storage discussed was via --------.","cassette","A faster and more reliable method of external storage is via ----.","disk" 1 "The computer is able to ----------- a disk to find unused sections automatically.","interrogate","----- load and save programs much faster than tape. ","disks" 1 "Most computers have 2 ------- modes.","display","---- mode displays letters,numbers and other characters","text","-------- mode displays pictures or diagrams on the screen.","graphics" 1 "Monitors are more expensive than televisions,but they do produce a ---- ------- display in both TEXT and GRAPHICS modes.","high quality" 1 "In order to produce a typewriter-quality output you need a ---------- printer.","daisywheel","Even the fastest 1 "In front of the needles is an inked ribbon.In this way the character is built up dot by dot." 1 "In all areas programs are saved and loaded much more reliably using a ---- system.","disk" 1 "If a tape head is worn or dirty this is likely to produce ------- ------.","loading errors","If the ------ is too high or too low,loading errors will occur. ","volume" 1 "How many numbers does the Binary Sytem use?"," a: Ten"," b: Two"," c: Three","b" 1 "Graphics ---------- is a measure of the accuracy with which pictures can be drawn or copied.","resolution" 1 "Every letter of the alphabet, every number and every special symbol on the computer keyboard is assigned its own code; i.e. by means of a combination of 1 "Bits are always in groups of:"," a: 5"," b: 10"," c: 8","c" 1 "An important point to remember is that most monitors do not have a -------. ","speaker" 1 "A person building up a basic system will be able to plug their computer into most household -----------.","televisions" 1 "A group of 8 Bits is called a:"," a: Binary Digit"," b: Kilobyte"," c: Byte","c" 1 "A Kilobyte or K is used as a measure of:"," a: A Computer's Memory"," b: A Computer's Weight"," c: A Computer's Size","a" 1 "A Byte can also be thought of as a:"," a: Evaluation Code"," b: User Code"," c: Character Code","c" 1 "A Bit is:"," a: The smallest piece of information a computer can handle,i.e. 1 or 0"," b: 1,000 Bytes"," c: Half a Byte","a" 1 "1K is equal to approximately:"," a: 10000 Bytes(or characters)"," b: 100 Bytes(or characters)"," c: 1000 Bytes(or characters)","c" 1 "----- overcome the problems associated with tape-based storage systems. ","disks","The contents of the disk are recorded in the ---------. ","directory" 1 "''"Lets look at them in relation toeach other" 1 "''"Another term for a byte is a 1 " TO REPEAT" 1 " TO CONTINUE" 1 " - the computer's code for 1 " i.e. ";: 1 " You cannot see software or touch it.Yet it is vital to the system." 1 " What can prove a problem is the fact that they produce characters with a broken appearance." 1 " We have discussed both 1 " This is fine for the hobbyist and for rough drafts,but not suitable for many business purposes": 1 " They are more expensive than televisions,but they do produce a 1 " These dots are called 1 " Therefore a small portable television may be necessary.": 1 " The term 1 " The reason for this is that they were purpose built to display computer output." 1 " The finer the graphics resolution(i.e.the higher the number of dots) the better the quality of the resulting image." 1 " OR------Limit your use of the computer." 1 " Most computers now have 2 ";: 1 " But they remain the only way of obtaining a top-quality printout." 1 " I wish you could see and try out our new car.It is as smooth and as swift as a cloud.I am sure you will like it and will want to drive it when we go on holiday to Scotland.I think we should leave here about 0700 hours,and that will get us on to the M6 before the city rush hour." 1 tells the computer what to do and without it the 1 printers.Even the fastest 1 printers produce characters with a ------ appearance. ","broken" 1 printers are much cheaper than the 1 printers and can be produced at very low cost." 1 on this computer is:" 1 on this computer is:" 1 of programs that they are working on." 1 of memory we can storeup to 1 of memory we can store up to 1 is called a 1 is a measure of the accuracy with which pictures can be drawn or copied." 1 i.e. letters, numbers etc." 1 displays letters, numbers and other characters,such as you are reading now." 1 are the terms that describe the way that computers use and store numbers in this way.": 1 are more expensive,noisier and heavier than 1 are ------ than a medium speed 1 are always put together in 1 are slower than a medium speed 1 TO REPEAT"; 1 EXERCISE 9 COMPLETED (CODE MF3) 1 EXERCISE 8 COMPLETED (CODE FD6) 1 EXERCISE 7 COMPLETED (CODE HM2) 1 EXERCISE 6 COMPLETED (CODE CH5) 1 1984 EXPRESS MARKETING LTD" 1 (short for binary digit) is the smallest piece of information a computer can handle, i.e. a 1 (i.e. printed copies) 1 printer are ";: 1 and are turned on and off to form pictures." 1 variety." 1 display." 1 describes how much information can be displayed on the screen at any one time." 1 cannot function." 1 printer." 1 approximately