What is a TIFF file?

TIFF = Tagged Image File Format, developed by Aldus Systems, now known as Adobe.

Casio School Calculators

The CASIO fx-series are a host of school calculators running of 1.5V DC battery. They have an associated education website as well. It implements a feature called "Natural Display" so you see equations (with brackets, powers etc) as if they are written on the page. To achieve this, the fx-series has a slightly "taller" LCD screen than some other calculators.

What is ATA or IDE drive? What is ATAPI? What is DVI?

They mean the same thing. ATA stands for "AT Attachment" and IDE stands for "Integrated Drive Electronics", interface used to connect hard disks and optical disks to the PC. Compared to SCSI interface, IDE is more economical. ATAPI is ATA for peripherals like CD-ROM.

DVI stands for Digital Video Interface; it's a video interface standard.

What is 800Mhz FSB?

FSB is the FRONT SIDE BUS. You will typically have computer speed quoted as i) main processor speed (e.g. 2.4Ghz), plus ii) FSB speed (e.g. 800Mhz). The FSB is the bus (or communication channel) that carries data between the CPU and the Northbridge. The "Northbrige" connects to video card and RAM and "Southbridge" deals with APM, USB, real-time clock etc.

Northbridge plays a role in overclocking - basically running an electronic component at a higher clock rate than the manufacturer designed it for. The frequency of the northbridge is used as a baseline for CPU to establish its own operating frequency.