Name: ______

IT Essentials I v4.0

Chapter 1 Study Guide

1.3.1 / The size and layout of a case is referred to as its: / Form factor
1.3.2 / The amount of power of a computer’s power supply is measured in terms of / Wattage
1.3.2 / Why should you never open a computer’s power supply? / Capacitors can hold a charge for an extended period of time.
1.4.1 / These two characteristics are determined by the chip set on a motherboard. / 1. how much memory can be added
2. type of connectors
1.4.1 / The Northbridge part of the chip set controls access to these: / 1. RAM
2. video card
1.4.1 / The Southbridge part of the chip set allows communication to these: / 1. hard drive
2. sound card
3. USBs
4. I/O ports
1.4.2 / This CPU architecture uses a small set of instructions that execute very rapidly. / RISC
1.4.2 / The term used to refer to changing a processor’s speed to faster than originally intended. / Overclocking
1.4.4 / This type of memory stores the basic information your computer needs to boot up. / ROM
1.4.4 / This type of ROM can be reprogrammed without removing it from the computer. / EEPROM
1.4.4 / What is the purpose of RAM in your computer? / Provides temporary storage for all files and programs that are open
1.4.4 / This type of RAM is primarily used as Cache memory. / SRAM
1.5 / List four characteristics of an USB standard port. / 1. hot swappable
2. single port can support 127 devices
3. can provide power to other devices
4. 480 Mbps (2.0 USB)
1.5. / List the three connector types for FireWire. (Number of pins?) / 1. 4 pin
2. 6 pin
3. 9 pin
1.5 / What is the maximum cable length? / Serial cable: _____50
Parallel cable: ____15
1.5 / How many devices can be connected to a
SCSI cable? / 15 devices
1.5 / SCSI cables can use ______pin, _____ pin or _____ pin connectors. / 25, 50, 68
1.6 / Name three input devices. / 1. mouse
2. keyboard
3. scanner (others)
1.7 / Name three output devices. / 1. printer
2. monitor
3. speakers (others)
1.8 / Describe the function of IRQs. / Interrupt Requests assign a given priority to requests being made by devices to the CPU.
1.8 / Describe the function of DMAs. / Direct Memory Access allows communication directly with the main memory – it bypasses the CPU.

ITE 1 Chapter 1 Study Guide – Page 2 of 3