What is 9 on a tape measure?

Tape measure markings represent the fractions of an inch. Each large tick represents one inch (1″), and the ticks between represent the following fractions: 1⁄16“, 1⁄8“, 3⁄16“, 1⁄4“, 5⁄16“, 3⁄8“, 7⁄16“, 1⁄2“, 9⁄16“, 5⁄8“, 11⁄16“, 3⁄4“, 13⁄16“, 7⁄8“, and 15⁄16“.

What sizes do tape measures come in?

The most common tape measures are 12 feet, 25 feet, or 100 feet in length. A 12-foot tape measure is handiest for consumers. The 25-foot length is called a builder’s tape and is marked in feet and at 16-inch increments to make measuring the standard distance between wall studs easier.

What are long tape measures called?

surveyor’s tapes
Also called surveyor’s tapes, long tapes are specially designed to precisely measure longer distances between 100-300 feet.

Which is the first to use 9 track tape?

The 2400 Series Magnetic Tape Units were introduced with the System/360 and were the first to use 9 track tape. The dimensions of the tape and reels were identical to those used with 7 track units, such as the IBM 729.

How many tracks are there in magnetic tape?

The 1⁄2 inch (12.7 mm) wide magnetic tape media and reels are the same size as the earlier IBM 7 track format it replaced, but the new format has eight data tracks and one parity track for a total of nine parallel tracks. Data is stored as 8-bit characters, spanning the full width of the tape (including the parity bit).

What’s the length of a long tape measure?

Hand Tools Measuring Tools Long Tape Measures Long Tape Measures Keson Lufkin Stanley Measuring Tape Tape Length (ft.): 100 Tape Length (ft.): 330 71Results

How big is the gap between Records on track tape?

Data was often written to the tape in blocks, instead of one record at a time. Between blocks, there was an interblock gap, which varied depending on the density, but was typically 5/8 to 3/4 of an inch long. To maximize the amount of data that was stored on a tape, the number of gaps had to be minimized.