Computer maintenance
chapters 1-7 review
By Benjamin Houlton
Chapter 1
introducing hardware
• Learned that a computer requires both hardware
and software in order to function
• All hardware operations are based on binary values
• Binary number systems all consist of the two digits
0 and 1
• We learned that most input devices are externally
located on the computer
chapter 1 Continued…
• Most of the computers processing and storage devices are located
internally
• The connections in the computer case can either be wired or they
can be wireless
• Expansion cards in the computers are installed in the expansion
slots inside the computer case.
Chapter 1 continued…
• All of the devices in the computer communicate with the CPU
located on the motherboard
• RAM is volatile memory
• ROM is non-volatile memory
Chapter 2
Introducing the operating system
• Main objective- learn about the various operating
systems of the computer, and the difference
between the different ones
• Learned about what tools a support technician
needs to fix a computer
• What an operating system does for the computer
• Different types of operating systems that can be
installed in your computer
Chapter 2 continued…
• Some hard drives have hidden recovery partitions
• Windows NT, XP,95,and 2000
• Try to avoid installing windows NT
Chapter 2 continued…
• Upgrading your computers operating system
• How to manage an operating system
• A computer only needs one operating system
Chapter 3
PC Repair Fundamentals
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Solutions to keeping your computer clean
Personal computer maintenance
How to dismantle a computer the proper way
Static electricity
Chapter 3 continued…
• Learn how to troubleshoot computer problems
• Help you diagnose problems inside your computer
• Steps to putting a computer back together
Chapter 3 continued…
• Learn what happens when you first turn on a PC
before the OS is loaded
• We learned about basic computer skills needed
• We also learned abut the advanced computer skills
needed
Chapter 4
form factors, ad power supplies
• Learn about different form factors and different
computer cases.
• Learned how electricity in a computer is measured
• Learn how to protect your computer system against
damaging changes in electrical power
• Leaned about the energy star specifications
Chapter 4 continued…
• Power supply passes power to PC components
• Energy star devices are designed to save the user
energy
• We learned about the different form factors for the
computers motherboard
Chapter 4 continued…
• Learned about the AT, baby AT, and ATX computer
form factors
• Learned about computer cases
• Learned about AC, and DC
• power
Chapter 5
processors, and chips
• Learned about the many different processor used in
personal computer today
• Learned about chipsets, and how they work
• Learned how to keep a processer cool
• Learned how to install and upgrade a processer
Chapter 5 continued…
• The processor is a field replaceable unit
• The chipset is embedded in the motherboard
• We learned about the major manufacturers of
processors
Chapter 5 continued
• Learned about the form factors used to rate
processors
• Every computer has a internal cache
• We learned about processor frequency speeds
Chapter 6
motherboards
• Learn about the different types of motherboards
and how to select one
• Learn how to support and configure a motherboard
• Learn how to install or replace a motherboard
• Learn how to troubleshoot a motherboard and
processor
Chapter 6 continued…
• The motherboard is a field replaceable unit
• we learned about different Motherboard form
factors
• We learned that Expansion slots are supported by
buses
Chapter 6 continued…
• Buses are like highway transportation systems
• We learned about he PCI buses in computers
• We learned about three ways to configure the
motherboard
Chapter 7
upgrading memory
• Learn about the different kinds of physical memory
and how they work
• Learn how to upgrade memory
• Learn how to troubleshoot problems with memory
• Memory technologies have evolved rapidly
Chapter 7 continued…
• RAM (random access memory)
• ROM (read-only memory)
• Differences among DIMM, RIMM, and SIMM
modules
Chapter 7 continued…
• SIMMS have a 32-bit data path
• DIMM (dual inline memory module)
• Synchronous DRAM (SDRAM)