BYTE, DB (byte: Allocates unsigned numbers from 0 to 255.)

SBYTE (signed byte: Allocates signed numbers from -128 to +127.)

WORD, DW (word = 2 bytes: Allocates unsigned numbers from 0 to 65,535 aka 64K.)

SWORD (signed word: Allocates signed numbers from -32,768 to +32,767.)

DWORD, DD (doubleword = 4 bytes: Allocates unsigned numbers from 0 to 4,294,967,295 aka 4 megabytes.)

SDWORD (signed doubleword: Allocates signed numbers from -2,147,483,648 to +2,147,483,647.)

FWORD, DF (farword = 6 bytes: Allocates 6-byte aka 48-bit integers. These values are normally used only as pointer variables on the 80386/486 processors.)

QWORD, DQ (quadword = 8 bytes: Allocates 8-byte integers used with 8087-family coprocessor instructions.)

TBYTE, DT (10 bytes:, Allocates 10-byte aka 80-bit integers if the initializer has a radix specifying the base of the number.)