Mod A Unit 2

Front 1

The standard ribbon cable used to connect a floppy disk drive to a computer. If the cable supports two floppy drives, it will have a seven wire twist in the middle to differnetiate between the A and A and B drives. The drive after the twist is the A drive

Back 1

34-Pin ribbon calbe

Front 2

A 32/64-bit expansion slot designed by Intel specifically for video that runs at 66 MHz and yields a throughput of at least 254 MBps. Later versions (2X,4X,8X) give substantially higher throughput.

Back 2

Accelerated Graphics Port (AGP)

Front 3

A series of standards that enable mass storage devices other than hard drives to use the IDE/ATA controllers. Extremely popular with CD-ROM drives and removable media drives like the Iomega Zip drive.

Back 3

ATAPI

Front 4

The number used by hardware techs that represents the first address in the range of I/O addresses for a device.

Back 4

Base I/O Address

Front 5

The term used to describe a situation in which a device has failed completely; the hard drive is non functioning, the computer will not boot up, ets. Oftentimes, this is caused when a component is subjected to an electrostatic discharge.

Back 5

Catastrophic Failure

Front 6

A preaasigned combination of IRQs and I/O addresses assigned to aserial port.

Back 6

COM Port

Front 7

EMI is electrical interference from one device to another resulting in poor performance of the device being interfered with. an example is having static on your TV while running a blow dryer, or pllacing two monitors too close together and getting a "shaky" screen.

Back 7

EMI (Electro Magnetic Interference

Front 8

The movement of electrons from one body to another. ESD is a real menace to PCs as it can cause permanent damage to semiconductors.

Back 8

ESD (Electrostatic Discharge)

Front 9

ESD bags are widely used to protect electonic devices from static electric charge. Most are metal-in or general purpose bags that have four layer construction of static dissipative polyethylene or aluminum shield, polyester and static dissipative coating.

Back 9

ESD Bag

Front 10

Set of wires going to the CPU, governed by the expansion bus crystal, directly connectedc to expansion slots of varying types (ISA, PCI, AGP, etc.). Depending on the type of slots, the expansion bus runs at a percentage of the main system speed (8.33-66 MHz).

Back 10

Expansion Bus

Front 11

A DOS utility used to partition a hard disk. It can create only one primary partition and one extended partition.

Back 11

FDisk

Front 12

The method used to arrange, read, and write files on a disk. Common file systems include FAT16, FAT32 and NTFS

Back 12

File System

Front 13

An IEEE 1394 standard to send wide band signals over a thin connecdtor system that plugs into TVs, VCRs, TV cameras, PCs, etc. This serial bus, developed by Aple and Texas Instruments, enables connection of 60 devices at speeds ranging from 100 to 400 megabits per second.

Back 13

Firewire

Front 14

Any part of a PC that is considered to be replaceable ini the field, i.e., a customer location. There is no oficial list of FRUs it is usuallly a matter of policy by the repair center.

Back 14

FRU (Field Replaceable Unit)

Front 15

A signal form a hardware device, such as a modem or a mouse, indicating that it needs the CPU's attention. In PCs, they are sent along specific channels associated with a particular device. It is therefore important to ensure that two devices do not share a common channel.

Back 15

Interrup Request ( IRQ)

Front 16

A unit of measurement used in surge protective devices to measure current absorption.

Back 16

Joule

Front 17

The partition table for a disk and the code that permits that partition table to be read. This must be functioning in order to boot from a hard disk.

Back 17

Master Boot Record (MBR)

Front 18

The technique of jumpering hard drives or CD-ROMs so that one device is considered the Master Device (device 0) while the other is the Slave Device (Device 1). It does not mean that the master is in control of the slave.

Back 18

Master/Slave Configuration

Front 19

An electronic measuring instrument that combines several functions in one unit. The most basic instruments include an ammeter, voltmeter, and ohmmeter. Analog multimeters are sometimes referred to as "volt-ohm-meters", abbreviated VOM.

Back 19

MultiMeter

Front 20

Electronic measurement of a bable's impedance.

Back 20

Ohms

Front 21

Design architecture for the sockets on the computer motherboard that enable system components to be added to the computer. It is a local bus standard, meaning that devices added to a computer through this port will use the processor at the motherboards full speed (up to 33 MHz), rather than tat the slower 8 MH speed of the regular bus. In addition to moving data at a faster rate, it moves data 32 or 64 bits at a time, rather than the 8 or 16 bits that the older ISA buses supported.

Back 21

Peripheral Component Interconnect

Front 22

Also called PnP, a combination of smart PCs, smart devices, and smart operating systems that automatically configure all the necessary system resources and ports when you install a new peripheral device.

Back 22

Plug and Play

Front 23

Devices used to protect electronic components against voltage spikes. The device is insertedc between the power supply and the electrical outlet to protect the system from power surges.

Back 23

Surge Suppressor

Front 24

A 12 Mbps serial interconnect for keyboards, printers, joysticks, and many other devices. Enables hot swapping and daisy chaining of up to 127 devices.

Back 24

USB (Univerisal Serial Bus)

Front 25

A way of restarting a computer without shutting it down. It loads a fresh OS without turning off the computer, lessenting the strain on the electronic circuitry. To do a warm boot, press the CTRL ALT DELETE keys at the same time or hit a computer reset switch.

Back 25

Warm Boot