User`s manual

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4. BIOS Setup
Drive A/B type
Select the correct specifications for the diskette drive(s) installed in the computer.
None No diskette drive installed.
360K, 5.25 in 5-1/4 inch AT-type standard drive; 360 kilobyte capacity.
1.2M, 5.25 in 5-1/4 inch AT-type high-density drive; 1.2 megabyte capacity.
720K, 3.5 in 3-1/2 inch double-sided drive; 720 kilobyte capacity.
1.44M, 3.5 in 3-1/2 inch double-sided drive; 1.44 megabyte capacity.
2.88M, 3.5 in 3-1/2 inch double-sided drive; 2.88 megabyte capacity.
Memory
RAM is the computer's working memory, where the computer stores programs and data
currently being used, so they are accessible to the CPU.
Base Memory
Typically 640 KB which is called a conventional memory. The DOS operating system and
conventional applications use this area.
Extended Memory
Above the 1 MB boundary. Early IBM personal computers could not use memory above 1
MB, but current PCs and their software can use extended memory.
Total Memory
System total memory is the sum of base memory, extended memory, and other memory.