Using the keyboard

The keyboard has full-sized keys and an embedded numeric keypad, separate cursor, lock, Windows, function and special keys.

Lock keys and embedded numeric keypad

The keyboard has three lock keys which you can toggle on and off.

English

Lock key	Description
Caps Lock	When Caps Lock is on, all alphabetic characters typed are
	in uppercase.

Num Lock	When Num Lock is on, the embedded keypad is in numeric
<Fn> + <F11>	mode. The keys function as a calculator (complete with the
	arithmetic operators +, -, *, and /). Use this mode when you
	need to do a lot of numeric data entry. A better solution
	would be to connect an external keypad.

Scroll Lock	When Scroll Lock is on, the screen moves one line up or down
<Fn> + <F12>	when you press the up or down arrow keys respectively.
	Scroll Lock does not work with some applications.

The embedded numeric keypad functions like a desktop numeric keypad. It is indicated by small characters located on the upper-right corner of the keycaps. To simplify the keyboard legend, cursor-control key symbols are not printed on the keys.

Desired access	Num Lock on	Num Lock off
Number keys on	Type numbers in a normal
embedded keypad	manner.

Cursor-control keys	Hold <Shift> while using	Hold <Fn> while using
on embedded keypad	cursor-control keys.	cursor-control keys.

Main keyboard keys	Hold <Fn> while typing	Type the letters in a
	letters on embedded keypad.	normal manner.

1640Z, M1640, 1640 specifications

The Acer 1640, M1640, and 1640Z are part of Acer's well-received line of desktop computers that cater to both home users and small businesses. These models are recognized for their balance of performance, design, and affordability, making them an attractive option for budget-conscious consumers.

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The 1640Z model offers integrated graphics capabilities, suitable for everyday tasks and media playback. While not designed for high-end gaming, its graphics processing unit can handle casual gaming and light graphics editing, making it a versatile choice for users with varied needs.

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In summary, the Acer 1640, M1640, and 1640Z series of desktops stand out for their balance of performance, expandability, and design. With sufficient processing power, flexible storage options, and a compact design, these models serve as reliable workhorses for students, professionals, and home users alike, embodying a solid choice in the competitive market of personal computers. Their emphasis on affordability without compromising essential features makes them a commendable option for those seeking to fulfill their computing needs without overspending.