1.why is all data stored in a computer in binary form?
Computers are only able to read and store data in binary form, 1 or 0, on or off, yes or no, voltage or none. Binary is the simplest way to manage information.
2. What are the four primary functions of hardware?
input, output, PROCESS, and Storage
3. What are the two main input devices and two main output devices?
the mouse, keyboard, printer, and monitor.
4. What three things do electronic hardware devices need in order to function?
power, ground return, and load.
5. How many bits are in a byte?
There are eight bits in a byte.
6. What is the purpose of an expansion slot on a motherboard?
Expansion slots on a motherboard ...view middle of the document...
List three types of ports that are often found coming directly off the motherboard to be used by external devices.
Usb,esata and firewire
16. What is the most common type of memory module?
DIMM
17. What is the difference between volatile and non-volatile memory?
between volatile and nonvolatile memory. Volatile memory is the RAM memory that is lost when your system is rebooted. Nonvolatile memory is the data that gets saved to your ROM memory.
18. Of the two types of storage in a system, which type is generally faster and holds data and instructions while the data is being processed? Which type of storage is generally slower, but more permanent?
Primary storage, secondary storage.
19. What technology standard provides for up to four devices on a system, including the hard drive as one of those devices? What are two common industry names loosely used to describe this standard?
IDE or EIDE or ATA are the technology standard that provides for up to four devices on a system and SATA and PATA.
20. What is a measurement of frequency of a system bus and CPU? Which is faster, the system bus or the CPU?
CPU operates from 166 MHz to more than 3 GHz system can operate from 133 MHz to 400 MHz. CPU is faster than the system bus
21. Name three types of buses that are likely to be on a motherboard today.
data bus, system bus and host bus.
22. A power supply receives 120 volts of power from a wall outlet and converts it to 3.3, 5, and 12 volts of power.
AC, DC
23. ROM BIOS or firmware chips that can be upgraded without replacing the chips are called
Flash Drive
24. BIOS setup allows a technician to change configuration settings on a motherboard stored in
Cmos Ram
25. Name three examples of secondary storage devices.
Cd drive, hard drive and floppy drive.
26. A hertz is cycle per second; a megahertz is ______ cycles per second, and a gigahertz is ______ cycles per second.
One, one million, one billion
27. An AGP slot is normally used for a(n) ______ expansion card.
Graphics card.
28. How many sizes of PCI Express slots are currently manufactured for personal computers?
4 different sizes
29. Name the three purposes the motherboard ROM BIOS servers.
System Bios - Manage simple devices
Start-up Bios - Starts the computer Cmos setup - used to change settings on the motherboard
30. From where does CMOS RAM receive its power when the computer is not turned on?
cmos ram is powered by a trickle of electricity from a small battery located on the motherboard or computer case.
Critically thinking
1. When selecting secondary storage devices for a new desktop PC, which is more important, a CD drive or a floppy drive? Why?
A CD-ROM drive, because most software today is distributed on CD
2. Based on what you have learned in this chapter, when working on a Microsoft Word document, why is it important to save your work often? Explain your answer using the two terms primary storage and secondary storage.
Because data is temporarily stored...
