Hardware Terminology - HP 9000 Series 310 Service Information Manual

Serial Numbers
Serial numbers are affixed to each computer and bus expander for identification purposes. A
decal on each product has the serial nunlber. An example serial number is explained below:
Serial No. 2322A01234
Location: Behind the power supply access cover on the
bottom of the chassis for computer and bus expander.
Description:
5-digit unique identifying number.
Country of Origin Code.
Product Code, decoded as:
First 2 digits
+
60
=
Last 2 digits of year
product was introduced or significantly changed.
Last 2 digits
=
number of week in year product
was introduced or significantly changed.
Hardware Terminology
Hardware is used to define physical elements of these products. Different parts and locations of
hardware items are explained below.
Products Types and Parts
The following terms are used to describe products and their main parts and areas:
• Computer - A product containing the central processing unit (CPU) and other assemblies
such as RAM cards, interface cards, and other accessories. Sometimes the computer is
referred to as the mainframe.
• I/O Card cage - The narrow slots for accessories in the back of the computer and bus
expander. Four slots are available in the computer, in the bus expander there are eight of
these slots. Distinction between these slots are:
• Counting from the top, every odd slot is an accessory card slot .
• Counting from the top, every even slot is an I/O card slot.
• System Slots - Two wider slots below the computer's accessory slots for the processor and
HP 9854X Video Boards.
• Internal (circuit) - A circuit, such as an RS-232 interface, that is part of the processor
board. Internal does not mean 'inside the computer's case parts'.
• External (circuit) - A circuit, such as an accessory RAM card, that is located on an
assembly other than the processor board. External does not mean 'outside the computer's
case parts'.
• Peripheral - A device external to the computer, such as a keyboard, monitor, disc drive,
plotter, printer, bus expander, etc.
• Bus Expander - A device external to the computer that connects to the computer's I/O
bus. This device provides power to its installed accessory cards and permits more of these
cards to be used in the computer system. Sometimes they are called bus extenders.
• System - One or more computers with one or more peripherals connected together to run
an application for a desired end result.
2
Product Information