Labels:text | diagram | font | screenshot | parallel | line | number | receipt OCR: Figure 1 The Memory Control Block (MCB) Memory Control Block (MCB) 0 1 5 16 Sig Owner ID Size Reserved Owner Name In DOS 4.0 or better, name of owning program (NULL-terminated it < 8 bytes) Size of block in paragraphs (not counting MCB) PSP of owning program, 8 == owned by DOS, 0 == free 'M' (4Dh) == valid block 'Z' (5Ah) == last block