Xerox 820-II Operation Manual Download

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Summary of Contents for 820-II

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Page 2: ...following measures Reorient the receiving antenna Relocate the computer with respect to the receiver Plug the computer into a different outlet so that computer and receiver are on different branch ci...

Page 3: ...Display Disk Drives Printers 3 Operation 18 Installation Getting Started Using Software Diagnostic Test 4 Technical Aspects 28 Specifications Memory Map Serial and Parallel Interface System Monitor Ap...

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Page 5: ...to effectively automate your office routines TYPEWRITER 0 JI COMPUTER i WORD PROCESSOR DATA TERMINAL 8000 6000 4000 2000 r lil I FROM 3000 I ELECTRONIC DATA DESK TOP WORD TYPEWRITER TERMINAL COMPUTER...

Page 6: ...BUDGET THE TRADITIONAL WAY THE 820 11 WAY One Computer for Individual Computer for Large Number of Personnel Each Decision Making Employee SMALL BUSINESS WITH SMALL OPERATING BUDGET 2 THE TRADITIONAL...

Page 7: ...The versatility of the 820 11 becomes apparent as you explore the available system features The inherent system capabilities coupled with the powerful CP M 2 2 Operating System provide the capability...

Page 8: ...your own software Some of the most common programs written by business people are forms fill in and customized reports Below is a partial list of the 820 II s programming features Your sales represen...

Page 9: ...sed to communicate with the system The keys are organized in standard typewriter style Similar to a TV screen the CRT provides clear readable viewing of the material being entered The display device a...

Page 10: ...TECHNICAL DESCRIPTION CRT 7 x 10 dot matrix for characters Software selectable character attributes Inverse video Blinking Low intensity Graphics with 4 x 4 Pixel resolution High speed character displ...

Page 11: ...3 3 81K 155K SINGLE DOUBLE DENSITY DENSITY 128 256 18 17 80 80 3 3 172K 322K SINGLE DOUBLE DENSITY DENSITY 128 256 26 26 77 77 2 2 241 K 482K SINGLE DOUBLE DENSITY DENSITY 128 256 26 26 154 154 2 2 4...

Page 12: ...sy print wheel changes Interchangeable print wheels Interchangeable ribbons 10 12 or 15 pitch 40 characters per second print speed Interchangeable print wheels Interchangeable ribbons TECHNICAL DESCRI...

Page 13: ...ng a letter to complex scientific calculations Details on page 29 The 24 line 80 character display exceeds industry standards for desk top computers and equals industry standards for small word proces...

Page 14: ...LP key is a unique feature ofthe 820 11 system and it s appearance on the keyboard demonstrates Xerox s commitment to making this a truly friendly system Pressing the HELP key tells the 820 11 word pr...

Page 15: ...rrections in the word processor mode very simple The ESCape key is used for sending special commands to the system in both the word processor and CP M modes The LINE FEED key is used to advance the pa...

Page 16: ...and 6K ROM BRIGHTNESS CONTROL ON OFF SWITCH BRIGHTNESS CONTROL RESET BUTTON 12 RESET BUTTON Conveniently located out of the way under the edge of the right side panel this switch controls power for t...

Page 17: ...RIVES KEYBOARD PRINTER COMM DISC DRIVES KEYBOARD PRINTER OISC IYU n o o NHII co DISC DI IU IIl Y OAIIlO PIIIINTI co Used for connection of either the 8 or the 5V4 Dual Floppy disk drives or the 8 Rigi...

Page 18: ...opened by pulling on the left edge of the latch which is over the drive opening Once a disk is inserted into the drive the latch is closed by pushing the left side of the latch until it clicks into pl...

Page 19: ...Slot Paper Jacket Tracks Write Protect Tape Sector Before the 820 11 can use a disk it must format initialize it The format of the disk allows the 820 11 to quickly find and retrieve data from the dis...

Page 20: ...tion stored on the rigid to guard against accidental data loss When the rigid disk is initialized formatted it is divided into sectors and tracks much like the floppy disk Each platter of the rigid di...

Page 21: ...same machine medium sized disks allow the convenience of moderate data storage capacity while letting each person keep track of his own disks If you are handling very large amounts of data want FAST...

Page 22: ...d in the manuals supplied with each package INSTALLATION DIAGNOSTICS MODE SELECTION 18 The individual plug in system components are easily interconnected Installing the 820 11 is less difficult than i...

Page 23: ...with a screwdriver Be careful not to overtighten the screws 3 Plug the units into AC outlet If you have 5114 disk drives plug the power cord on the screen into an AC outlet If you have 8 floppy or ri...

Page 24: ...ps Lift the covers straight up and place it on your table or desk SCREW SHIPPING BRACKET 3 REMOVE THE RIGID DISK DRIVE SHIP PING BRACKET CAUTION After removal of the shipping bracket the spindle may b...

Page 25: ...on STEP 1 Open both disk drives and remove any disks in the drives STEP 2 Turn on the display processor the switch is lo cated under the right hand edge of the screen near the back If you are using th...

Page 26: ...xx 1882 XEROX CORP L Load SYsteM H Host Te rMinal T Typewriter J j STEP 3 Tell the 820 11 what you want to do next Type the letter T and press the RETURN key to use the 820 11 as a typewriter OR use t...

Page 27: ...or Word Processing software on it To protect your software disk from accidental erasure it is a good idea to write protect the disk For 8 disks the write protect tape should be off while 5114 disks sh...

Page 28: ...l If you need a quick reminder of the CP M commands you can type the word HELP and press return to display a help file on the screen After you load the CP M Operating System you can use any of the CP...

Page 29: ...C delete a file D turn directory off ON E edit a program F print a file G rename a file H run a program for checking disk space copying a disk seeing B drive directory ESC key restart software HELP k...

Page 30: ...will be used To use the printer port you would select B as the optional channel parameter see directions below USING THE HOST TERMINAL To use the Host Terminal application follow the instructions belo...

Page 31: ...rolls information down on the screen Scrolls information up on the screen Enable local echo Characters transmitted and received will be displayed on the screen Enable local auto line feed When the RET...

Page 32: ...28 SPECIFICATIONS Display Screen 24 lines 80 characters per line displayed white on black background with brightness control Keyboard Separate unit from Display Screen Printer Speed 40 CPS Up to 40 c...

Page 33: ...or any disk specified Track 0 Sector 1 This program is loaded into the CPU location 80 hex The monitor then transfers control to the loaded program This initial program is a loader routine for the use...

Page 34: ...ured to interface to a modem or a terminal The PRINTER port is dedicated for printer operation and has no strapping options COMM CHANNEL A PRINTER CHANNEL B PIN RS232 SIGNAL PIN RS232 SIGNAL 1 GROUND...

Page 35: ...mers analog converters other computers or just about anything Xerox 820 11 manuals contain schematic drawings and data necessary to access this versatile 820 11 feature PIN 2 4 6 8 10 12 14 16 18 20 2...

Page 36: ...allows blocks of data to be moved in memory The display memory command produces a tabular display of the contents of mem ory in hexadecimal and ASCII The fill command allows blocks of memory to be fil...

Page 37: ...defined by codes from 00 to 7F If the most significant bit of the eight bit code is set to 1 then the complete font set is duplicated with the special blink inverse video or low intensity attribute se...

Page 38: ...dust and cigarette ashes Remove the disk before turning off the disk drive and do not insert the disk until after the drive is on Do not attempt to clean the disk surface or touch it in any manner Di...

Page 39: ...y dMIinga with Irioua auppIierw Ir c ltan 1n1ormltion lil lor prin1 lite mIinIananc e 10 inlurs ICCUrKY Upd 1tI Repor1lUppIieo dellil GIl dIs1rtbu1Ion 101M lor hIndpoeting Syslom colCula produceo _ PI...

Page 40: ...printer You should check your printer s instruction manual to find out what Protocol and Baud Rate it uses before you fill in the CONFIGUR menu INSTALLING THE PRINTER The cables necessary to connect...

Page 41: ...on that is contrary to the documentation in a program or a system Bus A port or group of ports plugs or electronic circuits that provide the capability to connect two or more microprocessors or input...

Page 42: ...ns and tells the components of the system how to work together Also see definitio for CP M Peripheral An external device that communicates with a computer Printers and disk drives are exam ples of per...

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