Diskette updates

disks/pc/dos/ibm/1.10/README.md

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+PC-DOS 1.10
+---
+
+The PCjs machine below is running PC-DOS 1.10.
+
+[IBM Model 5150](machine.xml "PCjs:ibm5150-pcdos110")
+
+Vital Statistics
+---
+
+PC-DOS 1.10 was released in May, 1982 on one single-sided (160Kb) diskette.  A complete listing of all the files
+is shown below.  Note that IBMBIO.COM and IBMDOS.COM were marked as *hidden* and *system*, so they are not displayed
+by DIR; their sizes and dates have been determined by inspecting the root directory.
+
+Also, in case you're wondering why 1920 + 6400 does not equal the "8704 bytes in 2 hidden files" reported by CHKDSK,
+that's because all CHKDSK byte totals are cluster-granular.  On a 160Kb diskette, 1 cluster equals 1 sector or 512
+bytes.
+
+CHKDSK considers the size of IBMBIO.COM to be 2048 bytes (1920 rounded up to the nearest 512 multiple), and the
+size of IBMDOS.COM is 6656, so the total number of bytes consumed by those two files is 8704.
+
+	IBMBIO    COM        1920  05-07-82
+	IBMDOS    COM        6400  05-07-82
+	COMMAND   COM        4959  05-07-82
+	FORMAT    COM        3816  05-07-82
+	CHKDSK    COM        1720  05-07-82
+	SYS       COM         605  05-07-82
+	DISKCOPY  COM        2008  05-07-82
+	DISKCOMP  COM        1640  05-07-82
+	COMP      COM        1649  05-07-82
+	EXE2BIN   EXE        1280  05-07-82
+	MODE      COM        2509  05-07-82
+	EDLIN     COM        2392  05-07-82
+	DEBUG     COM        5999  05-07-82
+	LINK      EXE       41856  05-07-82
+	BASIC     COM       11392  05-07-82
+	BASICA    COM       16768  05-07-82
+	ART       BAS        1920  05-07-82
+	SAMPLES   BAS        2432  05-07-82
+	MORTGAGE  BAS        6272  05-07-82
+	COLORBAR  BAS        1536  05-07-82
+	CALENDAR  BAS        3840  05-07-82
+	MUSIC     BAS        8704  05-07-82
+	DONKEY    BAS        3584  05-07-82
+	CIRCLE    BAS        1664  05-07-82
+	PIECHART  BAS        2304  05-07-82
+	SPACE     BAS        1920  05-07-82
+	BALL      BAS        2048  05-07-82
+	COMM      BAS        4352  05-07-82
+	        26 File(s)
+
+CHKDSK reports:
+
+	      160256 bytes total disk space
+	        8704 bytes in 2 hidden files
+	      144384 bytes in 26 user files 
+	        7168 bytes available on disk
+
+Additional details from [PC DOS Retro](https://sites.google.com/site/pcdosretro/doshist):
+
+- distributed on 1 160KB floppy disk
+- double-sided 320KB floppy disk support added
+- directory entries include the time last written in addition to the date
+- COPY supports concatenation of multiple files
+- new internal commands: DATE, DEL, REN, TIME
+- new external command: EXE2BIN
+- INT 21h functions 1Ch, 1Fh, 2Eh added
+
+See [PC-DOS 1.10 Documentation](../../../../../pubs/pc/software/dos/PCDOS110/) for more information.