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The operating system is contained in the ROM IC. This is a solid state electronic storage device which has
a program permanently wired in to make the CPU work. The program is unique to the TS1000. In symbolic
form it is a long sequence of bytes. Each byte has an address showing its position in the ROM -- the
first one has addresss 0, the second has address 1, and so on up to 8191; which is why the Sinclair BASIC
is called 8K BASIC. You can see what byte is at a given address by using the function PEEK. For example, this program prints out the first 21 bytes in the ROM (and their addresses.) 10 PRINT "ADDRESS";TAB 8;"BYTE" 20 FOR A=0 TO 20 30 PRINT A;TAB 8;PEEK A 40 NEXT A |