These icons come from Openclipart:

    https://openclipart.org/

They have been modified from their original versions.

boobaloo-Soaring-Eagle.svg
--------------------------

From <https://openclipart.org/detail/26251/soaring-eagle>

embedded-systems.svg
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Combination of <https://openclipart.org/detail/16812/kioskterminal>,
<https://openclipart.org/detail/167055/wireless-router>, and
<https://openclipart.org/detail/26347/zeebo-marca-retirada-por-questao-de-copyright>

zip.svg
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From <https://openclipart.org/detail/68671/compress>

1297948317.svg
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From <https://openclipart.org/detail/120391/speedo-meter>